Sample records for iron works fw

  1. FW402 Syllabus Spring 2011 FW402 FISH CULTURE (4 CREDITS)

    E-Print Network [OSTI]

    FW402 Syllabus Spring 2011 1 FW402 ­ FISH CULTURE (4 CREDITS) SYLLABUS ­ SPRING 2011 I. Lecture) · Assigned readings (see end of syllabus) · Calculator III. Recommended Materials · Old clothes for lab Syllabus Spring 2011 2 for the first 5 weekdays--after that point, they will be worth a maximum of 50

  2. Company Name: General Dynamics Bath Iron Works Web Site: https://www.gdbiw.com

    E-Print Network [OSTI]

    New Hampshire, University of

    Company Name: General Dynamics Bath Iron Works Web Site: https://www.gdbiw.com Industry: Defense's largest city, Portland. Majors they typically recruit: Civil Engineering, Electrical Engineering, Mechanical Engineering Do they offer internships: Our summer internship program provides students

  3. Climate VISION: Private Sector Initiatives: Iron and Steel: Work...

    Office of Scientific and Technical Information (OSTI)

    Institute (AISI) has developed a work plan based on AISI's commitment letter and the Climate Challenge Program which addresses the overall elements of the Climate VISION program...

  4. From: Moore, Larine To: Moore, Larine Subject: FW: Supplemental...

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

    Moore, Larine To: Moore, Larine Subject: FW: Supplemental Information - Alaska LNG Project LLC - Docket No. 14-96-LNG Date: Tuesday, September 09, 2014 9:46:12 AM From: Brough,...

  5. FW405 FISH PHYSIOLOGY (3 CREDITS) COURSE OUTLINE SPRING 2011

    E-Print Network [OSTI]

    ). o Supplemental readings (the journal articles listed at the end of the syllabus are required to access some of the files). http://classes.warnercnr.colostate.edu/fw405/ IX. Academic Dishonesty No academic dishonesty will be tolerated. If you are unsure as to whether an action, such as collaboration

  6. Coke oven gas treatment and by-product plant of Magnitogorsk Integrated Iron and Steel Works

    SciTech Connect (OSTI)

    Egorov, V.N.; Anikin, G.J. [Magnitogorsk Integrated Iron and Steel Works, (Russian Federation); Gross, M. [Krupp Koppers GmbH, Essen (Germany)

    1995-12-01T23:59:59.000Z

    Magnitogorsk Integrated Iron and Steel Works, Russia, decided to erect a new coke oven gas treatment and by-product plant to replace the existing obsolete units and to improve the environmental conditions of the area. The paper deals with the technological concept and the design requirements. Commissioning is scheduled at the beginning of 1996. The paper describes H{sub 2}S and NH{sub 3} removal, sulfur recovery and ammonia destruction, primary gas cooling and electrostatic tar precipitation, and the distributed control system that will be installed.

  7. Firenze 2001: Silicon Detectors Hartmut F.-W. Sadrozinski , SCIPP, UC Santa Cruz Large-Scale

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Firenze 2001: Silicon Detectors Hartmut F.-W. Sadrozinski , SCIPP, UC Santa Cruz SCIPPSCIPP Large (SCIPP) Development of Silicon Detectors GLAST : Gamma-Ray Large Area Space Telescope #12;Firenze 2001 by wafer size: 4" & 6" => Ladders #12;Firenze 2001: Silicon Detectors Hartmut F.-W. Sadrozinski , SCIPP, UC

  8. Impact of mine closure and access facilities on gas emissions from old mine workings to surface: examples of French iron and coal

    E-Print Network [OSTI]

    Boyer, Edmond

    : examples of French iron and coal Lorraine basins C. Lagny, R. Salmon, Z. Pokryszka and S. Lafortune (INERIS of mine shafts located in the iron Lorraine basin, in the Lorraine and in North-East coal basins are quite in mine workings but gas entrance and exit are allowed. Coal shafts are secured and can be equipped

  9. 2002 IEEE NSS/MIC pCT: Hartmut F.-W. Sadrozinski , SCIPP Towards Proton Computed Tomography

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    2002 IEEE NSS/MIC pCT: Hartmut F.-W. Sadrozinski , SCIPP SCIPPSCIPP Towards Proton Computed Tomography L. R. Johnson, B. Keeney, G. Ross, H. F.-W. Sadrozinski, A. Seiden, D.C. Williams, L. Zhang Santa Radiography MC Study #12;2002 IEEE NSS/MIC pCT: Hartmut F.-W. Sadrozinski , SCIPP SCIPPSCIPP Computed

  10. The Fish and Wildlife Service Manual, Part 340 FW 3: Rights-of...

    Open Energy Info (EERE)

    Reference LibraryAdd to library PermittingRegulatory Guidance - GuideHandbook: The Fish and Wildlife Service Manual, Part 340 FW 3: Rights-of-Way and Road ClosingsPermitting...

  11. Doctor of Engineering internship at Cameron Iron Works: an internship report

    E-Print Network [OSTI]

    Platou, John Stoud, 1951-

    2013-03-13T23:59:59.000Z

    needed equipment for any other Cameron engineering area. This unique responsibility made it the best possible location for an internship. The Wellhead group has responsibility for wellhead and x-mas trees for both land and offshore use. Drilling... subsea pipeline tie-in tool. 4 CAMERON MARINE DRILLING SYSTEM Cameron Iron is a one-responsibility company for many oil field related products. It has the capability to p r o ? duce a wide variety of finished oil field equipment from steel produced...

  12. F2k : GLAST Hartmut F.-W. Sadrozinski , SCIPP, UC Santa Cruz Radiation Issues

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    (SCIPP) #12;F2k : GLAST Hartmut F.-W. Sadrozinski , SCIPP, UC Santa Cruz GLAST Gamma-Ray Large Area Space Module Grid Tracker Module Gamma Ray Resolving the -ray sky Design Optimized for Key Science Objectives and acceleration bursts delayed emission all 3EG sources + 80 new in 2 days periodicity searches (pulsars & X-ray

  13. Brian Giebel Subject: FW: Faculty positions in Plant Genomics and Pathway Engineering at the JGI

    E-Print Network [OSTI]

    Borenstein, Elhanan

    1 Brian Giebel Subject: FW: Faculty positions in Plant Genomics and Pathway Engineering at the JGI: Faculty positions in Plant Genomics and Pathway Engineering at the JGI To: Jay Shendure coming out in Science targeted at recruiting individuals in plant genomics and pathway engineering

  14. On the nature of the tertiary companion to FW Tau: ALMA CO observations and SED modeling

    E-Print Network [OSTI]

    Caceres, Claudio; Schreiber, Matthias R; Canovas, Hector; Cieza, Lucas A; Williams, Jonathan P; Hales, Antonio; Pinte, Christophe; Menard, Francois; Wahhaj, Zahed

    2015-01-01T23:59:59.000Z

    It is thought that planetary mass companions may form through gravitational disk instabilities or core accretion. Identifying such objects in the process of formation would provide the most direct test for the competing formation theories. One of the most promising candidates for a planetary mass object still in formation is the third object in the FWTau system. We here present ALMA cycle 1 observations confirming the recently published 1.3 mm detection of a dust disk around this third object and present for the first time a clear detection of a single peak 12CO(2-1) line, providing direct evidence for the simultaneous existence of a gas disk. We perform radiative transfer modeling of the third object in FW Tau and find that current observations are consistent with a planetary mass object embedded in a disk which is externally irradiated by the binary companion and seen at an inclination of i<15 deg. However, we also find that a near edge-on disk around a more massive substellar object can explain the obse...

  15. Climate VISION: Private Sector Initiatives: Iron and Steel: Resources...

    Office of Scientific and Technical Information (OSTI)

    Industry Associations American Iron and Steel Institute For over a century, North American steel producers have worked as partners and members of the American Iron and Steel...

  16. 2/26/2014 FW: PHISHING -FW: Illegal Sign-in ALert https://exchange.fau.edu/owa/?ae=Item&t=IPM.Note&id=RgAAAADZN8qxqT6QRqTd8f8BZEzUBwCmAKuhQI79RqLB4f1oM4Q9AFLzBYXxAAC2IG4GFNa4Q... 1/1

    E-Print Network [OSTI]

    Fernandez, Eduardo

    2/26/2014 FW: PHISHING - FW: Illegal Sign-in ALert https://exchange.fau.edu/owa/?ae=Item&t=IPM.Note&id=RgAAAADZN8qxqT6QRqTd8f8BZEzUBwCmAKuhQI79RqLB4f1oM4Q9AFLzBYXxAAC2IG4GFNa4Q... 1/1 FW: PHISHING - FW: Illegal.byuh.edu [mailto:bailey4@go.byuh.edu] Sent: Thursday, February 27, 2014 12:53 AM To: OIT Help Desk Subject: Illegal

  17. IEEE NSS/MIC 2003 N30-3 Hartmut F.-W. Sadrozinski , SCIPP, UC Santa Cruz The Particle Tracking Silicon

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    produce damage AND identify damaged cell Transfer to Automated Microscope when Occupancy ~ 10% Organism;IEEE NSS/MIC 2003 N30-3 Hartmut F.-W. Sadrozinski , SCIPP, UC Santa Cruz Sodium and SSD Kamal Prasad UC-ionized water. While we expected the salt contaminated detector to break down [7], an I-V curve for the detector

  18. FW: FW: FRTG Pond, Robert to: mcnutt

    E-Print Network [OSTI]

    Fleskes, Joe

    's below by 1400 today. Also request verification whether the CONOP attached remains valid, or whether

  19. Lack of iron | EMSL

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

    Lack of iron Lack of iron Released: February 26, 2014 Iron-bearing minerals in sediments naturally reduce contaminant levels The Science The release of wastes associated with...

  20. Scientific Framework for Advancing Blanket/FW/Tritium Fuel Cycle Systems

    E-Print Network [OSTI]

    Ying, Sergey Smolentsev, and Neil Morley University of California, Los Angeles 1 (Greenwald Gaps G11, G that blankets designed with current knowledge of phenomena and data will not work The source of this problem instabilities that affect transport phenomena (Heat , T, Corrosion) Base flow strongly altered leading

  1. 1/5/14 [all-ura] URA office procedures: January 6, 2014: FW: Severe weather < Classes and non-essential activities canceled for Monday https://xmail.uchicago.edu/owa/?ae=Item&a=Open&t=IPM.Note&id=RgAAAAB1Qfezm1qiQZmARa%2bBpyKLBwCssmdLDqh%2fQJXwx%2boh2FogA

    E-Print Network [OSTI]

    He, Chuan

    1/5/14 [all-ura] URA office procedures: January 6, 2014: FW: Severe weather , 2014: FW: Severe weather [lswolter@uchicago.edu] Sunday, January 05, 2014 12:47 PM All: In response to the extreme winter weather

  2. Iron and Prochlorococcus/

    E-Print Network [OSTI]

    Thompson, Anne Williford

    2009-01-01T23:59:59.000Z

    Iron availability and primary productivity in the oceans are intricately linked through photosynthesis. At the global scale we understand how iron addition induces phytoplankton blooms through meso-scale iron-addition ...

  3. Investigating Iron Ions | EMSL

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

    Investigating Iron Ions Investigating Iron Ions Computer code provides detailed predictions of highly charged ions in water Using resources at EMSL, scientists obtained...

  4. Work Plan

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork & Life

  5. Oregon Iron Works Inc | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcernsCompany Oil andOpenEITODO JumpInformationOregon

  6. Grow Iron, Slow Pollution | EMSL

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

    Grow Iron, Slow Pollution Grow Iron, Slow Pollution Scientists connect previous studies on electron transport in hematite Making a Deposit: Scanning electron micrographs of...

  7. Factors Affecting the Reactvity of Granular Iron in contact with Chlorinated Solvents

    E-Print Network [OSTI]

    Firdous, Rubina

    2013-12-31T23:59:59.000Z

    in column experiments: Connelly Iron (GI)(~3% C) and Electrolytic Iron (EI) ( 0.01% C). Kinetic data suggested a shift in rate constant (k) and sorption parameters for both iron types with time. This work demonstrated the implication of carbon during...

  8. Numerical analysis of a model for Nickel-Iron alloy electrodeposition on rotating disk

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Numerical analysis of a model for Nickel-Iron alloy electrodeposition on rotating disk electrode N the nickel-iron electrodeposition process, we have developed one-dimensional numerical model. This model ad can predict characteristic features of the nickel-iron sys- tem. this work was supported

  9. Iron-Air Rechargeable Battery: A Robust and Inexpensive Iron-Air Rechargeable Battery for Grid-Scale Energy Storage

    SciTech Connect (OSTI)

    None

    2010-10-01T23:59:59.000Z

    GRIDS Project: USC is developing an iron-air rechargeable battery for large-scale energy storage that could help integrate renewable energy sources into the electric grid. Iron-air batteries have the potential to store large amounts of energy at low costiron is inexpensive and abundant, while oxygen is freely obtained from the air we breathe. However, current iron-air battery technologies have suffered from low efficiency and short life spans. USC is working to dramatically increase the efficiency of the battery by placing chemical additives on the batterys iron-based electrode and restructuring the catalysts at the molecular level on the batterys air-based electrode. This can help the battery resist degradation and increase life span. The goal of the project is to develop a prototype iron-air battery at significantly cost lower than todays best commercial batteries.

  10. Simulation of iron impurity gettering in crystalline silicon solar cells

    E-Print Network [OSTI]

    Powell, Douglas M. (Douglas Michael)

    2012-01-01T23:59:59.000Z

    This work discusses the Impurity-to-Efficiency (12E) simulation tool and applet. The 12E simulator models the physics of iron impurity gettering in silicon solar cells during high temperature processing. The tool also ...

  11. Brittle Failure Design Criteria for Ductile Cast Iron Spent-Fuel

    Office of Scientific and Technical Information (OSTI)

    for Ductile and Brittle Failure Design Criteria for Ductile Cast Iron Spent-Fuel Shipping Containers This report was prepared as an account of work sponsored by an...

  12. First analysis of eight Algol-type systems: V537 And, GS Boo, AM CrB, V1298 Her, EL Lyn, FW Per, RU Tri, and WW Tri

    E-Print Network [OSTI]

    Zasche, P

    2014-01-01T23:59:59.000Z

    Analyzing available photometry from the Super WASP and other databases, we performed the very first light curve analysis of eight eclipsing binary systems V537 And, GS Boo, AM CrB, V1298 Her, EL Lyn, FW Per, RU Tri, and WW Tri. All of these systems were found to be detached ones of Algol-type, having the orbital periods of the order of days. 722 new times of minima for these binaries were derived and presented, trying to identify the period variations caused by the third bodies in these systems.

  13. Working With Berkeley Lab

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWorkBusiness1:Working with

  14. Creating an iron understudy | EMSL

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

    iron reactivity. To test their process, the team created tiny iron oxide spheres with titanium added to control the Fe(II)Fe(III) ratio directly. The designer particles are also...

  15. Thin Wall Cast Iron: Phase II

    SciTech Connect (OSTI)

    Doru M. Stefanescu

    2005-07-21T23:59:59.000Z

    The development of thin-wall technology allows the designers of energy consuming equipment to select the most appropriate material based on cost/material properties considerations, and not solely on density. The technology developed in this research project will permit the designers working for the automotive industry to make a better informed choice between competing materials and thin wall cast iron, thus decreasing the overall cost of the automobile.

  16. Role of microbial iron reduction in the dissolution of iron hydroxysulfate minerals - article no. G01012

    SciTech Connect (OSTI)

    Jones, E.J.P.; Nadeau, T.L.; Voytek, M.A.; Landa, E.R. [US Geological Survey, Reston, VA (United States)

    2006-03-28T23:59:59.000Z

    Reduction of structural sulfate in the iron-hydroxysulfate mineral jarosite by sulfate-reducing bacteria has previously been demonstrated. The primary objective of this work was to evaluate the potential for anaerobic dissolution of the iron-hydroxysulfate minerals jarosite and schwertmannite at neutral pH by iron-reducing bacteria. Mineral dissolution was tested using a long-term cultivar, Geobacter metallireducens strain GS-15, and a fresh isolate Geobacter sp. strain ENN1, previously undescribed. ENN1 was isolated from the discharge site of Shadle Mine, in the southern anthracite coalfield of Pennsylvania, where schwertmannite was the predominant iron-hydroxysulfate mineral. When jarosite from Elizabeth Mine (Vermont) was provided as the sole terminal electron acceptor, resting cells of both G. metallireducens and ENN1 were able to reduce structural Fe(III), releasing Fe{sup +2}, SO{sub 4}{sup -2}, and K{sup +} ions. A lithified jarosite sample from Utah was more resistant to microbial attack, but slow release of Fe{sup +2} was observed. Neither bacterium released Fe{sup +2} from poorly crystalline synthetic schwertmannite. Our results indicate that exposure of jarosite to iron-reducing conditions at neutral pH is likely to promote the mobility of hazardous constituents and should therefore be considered in evaluating waste disposal and/or reclamation options involving jarosite-bearing materials.

  17. Iron pages of HTSC

    SciTech Connect (OSTI)

    Gasparov, V. A., E-mail: vgasparo@issp.ac.r [Russian Academy of Sciences, Institute of Solid State Physics (Russian Federation)

    2010-08-15T23:59:59.000Z

    Experimental data are presented on the superconducting and electronic properties of iron-based high-temperature superconductors in the normal and superconducting states. The following topics are discussed: lattice structure; structure of magnetic vortices; magnetic penetration depth; Fermi surface; isotope effect; and critical magnetic fields both in oxide compounds of 1111 type and oxide-free compounds of 122, 111, and 011 types as a function of the doping level, temperature, and external pressure.

  18. Work plan (Nov

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork &ARM STM Cloud

  19. Work with Biological Materials

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork &ARM STM

  20. Work with Biological Materials

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork &ARM STMWork with

  1. Working Group Reports

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWorkBusiness1: Model4:

  2. Working Together | Jefferson Lab

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWorkBusiness1:

  3. Microbial reduction of iron ore

    DOE Patents [OSTI]

    Hoffmann, Michael R. (Pasadena, CA); Arnold, Robert G. (Pasadena, CA); Stephanopoulos, Gregory (Pasadena, CA)

    1989-01-01T23:59:59.000Z

    A process is provided for reducing iron ore by treatment with microorganisms which comprises forming an aqueous mixture of iron ore, microorganisms operable for reducing the ferric iron of the iron ore to ferrous iron, and a substrate operable as an energy source for the microbial reduction; and maintaining the aqueous mixture for a period of time and under conditions operable to effect the reduction of the ore. Preferably the microorganism is Pseudomonas sp. 200 and the reduction conducted anaerobically with a domestic wastewater as the substrate. An aqueous solution containing soluble ferrous iron can be separated from the reacted mixture, treated with a base to precipitate ferrous hydroxide which can then be recovered as a concentrated slurry.

  4. Microbial reduction of iron ore

    DOE Patents [OSTI]

    Hoffmann, M.R.; Arnold, R.G.; Stephanopoulos, G.

    1989-11-14T23:59:59.000Z

    A process is provided for reducing iron ore by treatment with microorganisms which comprises forming an aqueous mixture of iron ore, microorganisms operable for reducing the ferric iron of the iron ore to ferrous iron, and a substrate operable as an energy source for the microbial reduction; and maintaining the aqueous mixture for a period of time and under conditions operable to effect the reduction of the ore. Preferably the microorganism is Pseudomonas sp. 200 and the reduction conducted anaerobically with a domestic wastewater as the substrate. An aqueous solution containing soluble ferrous iron can be separated from the reacted mixture, treated with a base to precipitate ferrous hydroxide which can then be recovered as a concentrated slurry. 11 figs.

  5. Iron efficiency in sorghum

    E-Print Network [OSTI]

    Esty, James Craig

    1979-01-01T23:59:59.000Z

    ) James Craig Esty, B, S. , Panhandle State College Co-Chairmen of Advisory Committee: Dr. Arthur B. Onken Dr. Lloyd R. Hossner R tt *ht ' d f * ' g * gh L~Sh bicolor (L. ) Moenchj parental lines and Fl hybrids indicate varying degrees of iron (Fe...) utilization. Visual ratings after seven days of Fe stress indicated only one hybrid, ATx 378 x RTx 2536, to be green or Fe efficient. Hybrids or parental lines rated partially chlorotic were: ATx 378 x RTx 415 and RTx 2536. Those sorghums rated chlorotic...

  6. Transcriptional and translational regulatory responses to iron...

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

    of Candidatus Pelagibacter ubique cultures to iron limitation in natural seawater media supplemented with a siderophore to chelate iron. MethodologyPrincipal Findings:...

  7. Southern Ocean Iron Experiment (SOFex)

    SciTech Connect (OSTI)

    Coale, Kenneth H.

    2005-07-28T23:59:59.000Z

    The Southern Ocean Iron Experiment (SOFeX) was an experiment decades in the planning. It's implementation was among the most complex ship operations that SIO has been involved in. The SOFeX field expedition was successful in creating and tracking two experimentally enriched areas of the Southern Ocean, one characterized by low silicic acid, one characterized by high silicic acid. Both experimental sites were replete with abundant nitrate. About 100 scientists were involved overall. The major findings of this study were significant in several ways: (1) The productivity of the southern ocean is limited by iron availability. (2) Carbon uptake and flux is therefore controlled by iron availability (3) In spite of low silicic acid, iron promotes non-silicious phytoplankton growth and the uptake of carbon dioxide. (4) The transport of fixed carbon from the surface layers proceeds with a C:N ratio that would indicate differential remineralization of nitrogen at shallow depths. (5) These finding have major implications for modeling of carbon export based on nitrate utilization. (6) The general results of the experiment indicate that, beyond other southern ocean enrichment experiments, iron inputs have a much wider impact of productivity and carbon cycling than previously demonstrated. Scientific presentations: Coale, K., Johnson, K, Buesseler, K., 2002. The SOFeX Group. Eos. Trans. AGU 83(47) OS11A-0199. Coale, K., Johnson, K. Buesseler, K., 2002. SOFeX: Southern Ocean Iron Experiments. Overview and Experimental Design. Eos. Trans. AGU 83 (47) OS22D-01. Buesseler, K.,et al. 2002. Does Iron Fertilization Enhance Carbon Sequestration? Particle flux results from the Southern Ocean Iron Experiment. Eos. Trans. AGU 83 (47), OS22D-09. Johnson, K. et al. 2002. Open Ocean Iron Fertilization Experiments From IronEx-I through SOFeX: What We Know and What We Still Need to Understand. Eos. Trans. AGU 83 (47), OS22D-12. Coale, K. H., 2003. Carbon and Nutrient Cycling During the Southern Ocean Iron Enrichment Experiments. Seattle, WA. Geological Society of America. Coale, K., 2003. Open Ocean Iron Enrichment Experiments: What they have told us, what they have not. American Society for Limnology and Oceanography and The Oceanography Society, Honolulu, February 2004. Coale, K., 2004. Recent Research from the Southern Ocean Iron Experiment (SOFeX), in Taking the Heat: What is the impact of ocean fertilization on climate and ocean ecology? Science of earth and sky. AAAS, February 12-16, Seattle, WA

  8. Snapshot of iron response in Shewanella oneidensis by gene network reconstruction

    SciTech Connect (OSTI)

    Yang, Yunfeng; Harris, Daniel P.; Luo, Feng; Xiong, Wenlu; Joachimiak, Marcin; Wu, Liyou; Dehal, Paramvir; Jacobsen, Janet; Yang, Zamin; Palumbo, Anthony V.; Arkin, Adam P.; Zhou, Jizhong

    2008-10-09T23:59:59.000Z

    Background: Iron homeostasis of Shewanella oneidensis, a gamma-proteobacterium possessing high iron content, is regulated by a global transcription factor Fur. However, knowledge is incomplete about other biological pathways that respond to changes in iron concentration, as well as details of the responses. In this work, we integrate physiological, transcriptomics and genetic approaches to delineate the iron response of S. oneidensis. Results: We show that the iron response in S. oneidensis is a rapid process. Temporal gene expression profiles were examined for iron depletion and repletion, and a gene co-expression network was reconstructed. Modules of iron acquisition systems, anaerobic energy metabolism and protein degradation were the most noteworthy in the gene network. Bioinformatics analyses suggested that genes in each of the modules might be regulated by DNA-binding proteins Fur, CRP and RpoH, respectively. Closer inspection of these modules revealed a transcriptional regulator (SO2426) involved in iron acquisition and ten transcriptional factors involved in anaerobic energy metabolism. Selected genes in the network were analyzed by genetic studies. Disruption of genes encoding a putative alcaligin biosynthesis protein (SO3032) and a gene previously implicated in protein degradation (SO2017) led to severe growth deficiency under iron depletion conditions. Disruption of a novel transcriptional factor (SO1415) caused deficiency in both anaerobic iron reduction and growth with thiosulfate or TMAO as an electronic acceptor, suggesting that SO1415 is required for specific branches of anaerobic energy metabolism pathways. Conclusions: Using a reconstructed gene network, we identified major biological pathways that were differentially expressed during iron depletion and repletion. Genetic studies not only demonstrated the importance of iron acquisition and protein degradation for iron depletion, but also characterized a novel transcriptional factor (SO1415) with a role in anaerobic energy metabolism.

  9. A study of kinetics and mechanisms of iron ore reduction in ore/coal composites

    SciTech Connect (OSTI)

    Sun, S.; Lu, W.K. [McMaster Univ., Hamilton, Ontario (Canada). Dept. of Materials Science and Engineering

    1996-12-31T23:59:59.000Z

    Blast furnace ironmaking technology, by far the most important ironmaking process, is based on coke and iron ore pellets (or sinter) to produce liquid iron. However, there has been a worldwide effort searching for a more economical and environmental friendly alternative process for the production of liquid iron. The essential requirement is that it should be minimized in the usage of metallurgical coke and agglomerate of iron ore concentrates. With iron ore concentrate and coal as raw materials, there are two approaches: (a) Smelting reduction; melting the ore before reduction; (b) Reduction of the ore in solid state followed by melting. The present work is on the fundamentals of the latter. It consists of a better designed experimental study including pressure gradient measurement, and a more rigorous non-isothermal and non-isobaric mathematical model. Results of this work may be applied to carbothermic processes, such as FASTMET and LB processes, as well as recycling of fines in steel plants.

  10. Method for reducing iron losses in an iron smelting process

    DOE Patents [OSTI]

    Sarma, Balu (Airmont, NY); Downing, Kenneth B. (Greenville, SC)

    1999-01-01T23:59:59.000Z

    A process of smelting iron that comprises the steps of: a) introducing a source of iron oxide, oxygen, nitrogen, and a source of carbonaceous fuel to a smelting reactor, at least some of said oxygen being continuously introduced through an overhead lance; b) maintaining conditions in said reactor to cause (i) at least some of the iron oxide to be chemically reduced, (ii) a bath of molten iron to be created and stirred in the bottom of the reactor, surmounted by a layer of slag, and (iii) carbon monoxide gas to rise through the slag; c) causing at least some of said carbon monoxide to react in the reactor with the incoming oxygen, thereby generating heat for reactions taking place in the reactor; and d) releasing from the reactor an offgas effluent, is run in a way that keeps iron losses in the offgas relatively low. After start-up of the process is complete, steps (a) and (b) are controlled so as to: e) keep the temperature of the molten iron at or below about 1550.degree. C. and f) keep the slag weight at or above about 0.8 tonne per square meter.

  11. Method for reducing iron losses in an iron smelting process

    DOE Patents [OSTI]

    Sarma, B.; Downing, K.B.

    1999-03-23T23:59:59.000Z

    A process of smelting iron that comprises the steps of: (a) introducing a source of iron oxide, oxygen, nitrogen, and a source of carbonaceous fuel to a smelting reactor, at least some of said oxygen being continuously introduced through an overhead lance; (b) maintaining conditions in said reactor to cause (1) at least some of the iron oxide to be chemically reduced, (2) a bath of molten iron to be created and stirred in the bottom of the reactor, surmounted by a layer of slag, and (3) carbon monoxide gas to rise through the slag; (c) causing at least some of said carbon monoxide to react in the reactor with the incoming oxygen, thereby generating heat for reactions taking place in the reactor; and (d) releasing from the reactor an offgas effluent, is run in a way that keeps iron losses in the offgas relatively low. After start-up of the process is complete, steps (a) and (b) are controlled so as to: (1) keep the temperature of the molten iron at or below about 1550 C and (2) keep the slag weight at or above about 0.8 ton per square meter. 13 figs.

  12. Iron catalyzed coal liquefaction process

    DOE Patents [OSTI]

    Garg, Diwakar (Macungie, PA); Givens, Edwin N. (Bethlehem, PA)

    1983-01-01T23:59:59.000Z

    A process is described for the solvent refining of coal into a gas product, a liquid product and a normally solid dissolved product. Particulate coal and a unique co-catalyst system are suspended in a coal solvent and processed in a coal liquefaction reactor, preferably an ebullated bed reactor. The co-catalyst system comprises a combination of a stoichiometric excess of iron oxide and pyrite which reduce predominantly to active iron sulfide catalysts in the reaction zone. This catalyst system results in increased catalytic activity with attendant improved coal conversion and enhanced oil product distribution as well as reduced sulfide effluent. Iron oxide is used in a stoichiometric excess of that required to react with sulfur indigenous to the feed coal and that produced during reduction of the pyrite catalyst to iron sulfide.

  13. Iron and Steel Energy Intensities

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

    If you are having trouble, call 202-586-8800 for help. Home > >Energy Users > Energy Efficiency Page > Iron and Steel Energy Intensities First Use of Energy Blue Bullet First Use...

  14. Process for the synthesis of iron powder

    DOE Patents [OSTI]

    Not Available

    1982-03-06T23:59:59.000Z

    A process for preparing iron powder suitable for use in preparing the iron-potassium perchlorate heat-powder fuel mixture used in thermal batteries, comprises preparing a homogeneous, dense iron oxide hydroxide precipitate by homogeneous precipitation from an aqueous mixture of a ferric salt, formic or sulfuric acid, ammonium hydroxide and urea as precipitating agent; and then reducing the dense iron oxide hydroxide by treatment with hydrogen to prepare the iron powder.

  15. Process for the synthesis of iron powder

    DOE Patents [OSTI]

    Welbon, W.W.

    1983-11-08T23:59:59.000Z

    A process for preparing iron powder suitable for use in preparing the iron-potassium perchlorate heat-powder fuel mixture used in thermal batteries, comprises preparing a homogeneous, dense iron oxide hydroxide precipitate by homogeneous precipitation from an aqueous mixture of a ferric salt, formic or sulfuric acid, ammonium hydroxide and urea as precipitating agent; and then reducing the dense iron oxide hydroxide by treatment with hydrogen to prepare the iron powder. 2 figs.

  16. Explorations of iron-iron hydrogenase active site models by experiment and theory

    E-Print Network [OSTI]

    Tye, Jesse Wayne

    2009-05-15T23:59:59.000Z

    This dissertation describes computational and experimental studies of synthetic complexes that model the active site of the iron-iron hydrogenase [FeFe]H2ase enzyme. Simple dinuclear iron dithiolate complexes act as functional models of the ironiron...

  17. Explorations of iron-iron hydrogenase active site models by experiment and theory

    E-Print Network [OSTI]

    Tye, Jesse Wayne

    2009-05-15T23:59:59.000Z

    This dissertation describes computational and experimental studies of synthetic complexes that model the active site of the iron-iron hydrogenase [FeFe]H2ase enzyme. Simple dinuclear iron dithiolate complexes act as functional models of the ironiron...

  18. anaemia iron deficiency: Topics by E-print Network

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

    Bhaniani, Amit 2009-05-29 5 Correcting Iron Deficiencies in Soybean with Foliar Iron Fertilizer Engineering Websites Summary: Correcting Iron Deficiencies in Soybean with Foliar...

  19. Working Paper

    E-Print Network [OSTI]

    2010-07-16T23:59:59.000Z

    Jul 2, 2010 ... Working Paper. Branch and Bound Algorithms for ...... interest when evaluating the performance. First, each derived subproblem means usage...

  20. TECHNOLOGY DEVELOPMENT FOR IRON FISCHER-TROPSCH CATALYSTS

    SciTech Connect (OSTI)

    Davis, B.H.

    1998-07-22T23:59:59.000Z

    The goal of the proposed work described in this Final Report was the development of iron-based Fischer-Tropsch catalysts that combined high activity, selectivity and life with physical robustness for slurry phase reactors that will produce either low-alpha or high-alpha products. The work described here has optimized the catalyst composition and pretreatment operation for a low-alpha catalyst. In parallel, work has been conducted to design a high-alpha iron catalyst that is suitable for slurry phase synthesis. Studies have been conducted to define the chemical phases present at various stages of the pretreatment and synthesis stages and to define the course of these changes. The oxidation/reduction cycles that are anticipated to occur in large, commercial reactors have been studied at the laboratory scale. Catalyst performance has been determined for catalysts synthesized in this program for activity, selectivity and aging characteristics.

  1. GLASSES CONTAINING IRON (II III) OXIDES FOR IMMOBILIZATION OF RADIOACTIVE TECHNETIUM

    SciTech Connect (OSTI)

    KRUGER AA; HEO J; XU K; CHOI JK; HRMA PR; UM W

    2011-11-07T23:59:59.000Z

    Technetium-99 (Tc-99) has posed serious environmental threats as US Department of Energy's high-level waste. This work reports the vitrification of Re, as surrogate for Tc-99, by iron-borosilicate and iron-phosphate glasses, respectively. Iron-phosphate glasses can dissolve Re as high as {approx} 1.2 wt. %, which can become candidate waste forms for Tc-99 disposal, while borosilicate glasses can retain less than 0.1 wt. % of Re due to high melting temperature and long melting duration. Vitrification of Re as Tc-99's mimic was investigated using iron-borosilicate and iron-phosphate glasses. The retention of Re in borosilicate glasses was less than 0.1 wt. % and more than 99 wt. % of Re were volatilized due to high melting temperature and long melting duration. Because the retention of Re in iron-phosphate glasses is as high as 1.2 wt. % and the volatilization is reduced down to {approx}50 wt. %, iron-phosphate glasses can be one of the glass waste form candidates for Tc (or Re) disposal. The investigations of chemical durability and leaching test of iron-phosphate glasses containing Re are now underway to test the performance of the waste form.

  2. DOMAIN PATTERNS AND REVERSALS BY WALL MOVEMENTS OF THIN FILMS OF IRON AND NICKEL IRON

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    310 DOMAIN PATTERNS AND REVERSALS BY WALL MOVEMENTS OF THIN FILMS OF IRON AND NICKEL IRON By C. E directions but in the case of the nickel-iron film the reversal of magnetization in the perpendicular domain reversals in nickel-iron films observed by the Kerr effect, and that of Williams and Sherwood [2

  3. Good Sources of Nutrients: Iron

    E-Print Network [OSTI]

    Scott, Amanda; Replogle, Jacqueline

    2008-08-28T23:59:59.000Z

    ENP-2881 08-08 Good Sources of Nutrients Iron Buenas fuentes de nutrientes Hierro La funci?n del hierro Transporta ox?geno en la sangre para que su ? cuerpo tenga energ?a Facilita crecimiento? Proporciona energ?a que ayuda a los ni?os a ? jugar y...

  4. The unexpected properties of alkali metal iron selenide superconductors

    SciTech Connect (OSTI)

    Dagotto, Elbio R [ORNL

    2013-01-01T23:59:59.000Z

    The iron-based superconductors that contain FeAs layers as the fundamental building block in the crystal structures have been rationalized in the past using ideas based on the Fermi surface nesting of hole and electron pockets when in the presence of weak Hubbard U interactions. This approach seemed appropriate considering the small values of the magnetic moments in the parent compounds and the clear evidence based on photoemission experiments of the required electron and hole pockets. However, recent results in the context of alkali metal iron selenides, with generic chemical composition AxFe2ySe2 (A alkali metal element), have challenged those previous ideas since at particular compositions y the low-temperature ground states are insulating and display antiferromagnetic order with large iron magnetic moments. Moreover, angle-resolved photoemission studies have revealed the absence of hole pockets at the Fermi level in these materials. The present status of this exciting area of research, with the potential to alter conceptually our understanding of the ironbased superconductors, is here reviewed, covering both experimental and theoretical investigations. Other recent related developments are also briefly reviewed, such as the study of selenide two-leg ladders and the discovery of superconductivity in a single layer of FeSe. The conceptual issues considered established for the alkali metal iron selenides, as well as several issues that still require further work, are discussed.

  5. Working Copy

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengtheningWildfires may contribute more to &83 3.3At DOE Working At

  6. Working Copy

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengtheningWildfires may contribute more to &83 3.3At DOE Working

  7. Iron production maintenance effectiveness system

    SciTech Connect (OSTI)

    Augstman, J.J. [Dofasco Inc., Hamilton, Ontario (Canada)

    1996-12-31T23:59:59.000Z

    In 1989, an internal study in the Coke and Iron Maintenance Department identified the opportunities available to increase production, by decreasing unscheduled maintenance delays from 4.6%. A five year front loaded plan was developed, and presented to the company president. The plan required an initial investment of $1.4 million and a conservative break-even point was calculated to be 2.5 years. Due to budget restraints, it would have to be self-funded, i.e., generate additional production or savings, to pay for the program. The program began in 1991 at number 2 coke plant and the blast furnaces. This paper will describe the Iron Production Maintenance Effectiveness System (ME), which began with the mechanical and pipefitting trades.

  8. FW4 water and humans Peter Rhines

    E-Print Network [OSTI]

    University of Washington image: Petermann Glacier, NW Greenland Konrad Steffen #12;Surface salinity in the atmosphere: already visible IPCC 2007 #12;#12; yet the major frontal regions, jet streams and storm tracks by global warming The winds over S. America and the Southern Ocean have accelerated since 1970s

  9. Fermilab at Work | Work Resources

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.New Mexico Feb. 13, 2013 NAME:Job Opportunities JoinWork Resources

  10. Iron speciation and its biological availability in seawater: A workshop

    SciTech Connect (OSTI)

    Wells, M.L.; Bruland, K.W.

    1995-09-08T23:59:59.000Z

    This workshop brought together marine chemists with expertise in iron chemistry and biologists with expertise in the role of iron in phytoplankton production to discuss controversies regarding the role of iron in oceanic primary productivity and global climatic change. A new paradigm for marine iron biogeochemistry was generated. The five major new items within this paradigm included (1) the nature of iron inputs to the sea, (2) chemical speciation of iron in seawater, (3) relationships between iron chemistry and marine microbial community dynamics, (4) adaptations of marine microbes to iron input, and (5) ecological and biogeochemical implications of changes in iron supply to the sea.

  11. Energy Saving Melting and Revert Reduction Technology: Aging of Graphitic Cast Irons and Machinability

    SciTech Connect (OSTI)

    Von L. Richards

    2012-09-19T23:59:59.000Z

    The objective of this task was to determine whether ductile iron and compacted graphite iron exhibit age strengthening to a statistically significant extent. Further, this effort identified the mechanism by which gray iron age strengthens and the mechanism by which age-strengthening improves the machinability of gray cast iron. These results were then used to determine whether age strengthening improves the machinability of ductile iron and compacted graphite iron alloys in order to develop a predictive model of alloy factor effects on age strengthening. The results of this work will lead to reduced section sizes, and corresponding weight and energy savings. Improved machinability will reduce scrap and enhance casting marketability. Technical Conclusions: ???¢???????¢ Age strengthening was demonstrated to occur in gray iron ductile iron and compacted graphite iron. ???¢???????¢ Machinability was demonstrated to be improved by age strengthening when free ferrite was present in the microstructure, but not in a fully pearlitic microstructure. ???¢???????¢ Age strengthening only occurs when there is residual nitrogen in solid solution in the Ferrite, whether the ferrite is free ferrite or the ferrite lamellae within pearlite. ???¢???????¢ Age strengthening can be accelerated by Mn at about 0.5% in excess of the Mn/S balance Estimated energy savings over ten years is 13.05 trillion BTU, based primarily on yield improvement and size reduction of castings for equivalent service. Also it is estimated that the heavy truck end use of lighter castings for equivalent service requirement will result in a diesel fuel energy savings of 131 trillion BTU over ten years.

  12. Broad Iron Emission from Gravitationally Lensed Quasars Observed by Chandra

    E-Print Network [OSTI]

    Walton, D J; Miller, J M; Reis, R C; Stern, D; Harrison, F A

    2015-01-01T23:59:59.000Z

    Recent work has demonstrated the potential of gravitationally lensed quasars to extend measurements of black hole spin out to high-redshift with the current generation of X-ray observatories. Here we present an analysis of a large sample of 27 lensed quasars in the redshift range 1.0permit the detection of iron emission from the inner accretion disk in individual cases in our sample, we find significant structure in the stacked residuals. In addition to the narrow core, seen almost ubiquitously in local AGN, we find evidence for an additional underlying broad component from the inner accretion disk, with a clear red wing to the emission profile. Based on simulations, we find the detection of this broader component to be significant at greater than the 3-sigma level. This implies that iron emission...

  13. IRON-PHOSPHATE GLASS FOR IMMOBILIZATION OF RADIOACTIVE TECHNETIUM

    SciTech Connect (OSTI)

    KRUGER AA; HRMA PR; XU K; CHOI J; UM W; HEO J

    2012-03-19T23:59:59.000Z

    Technetium-99 (Tc-99) can bring a serious environmental threat because of its high fission yield, long half-life, and high solubility and mobility in the ground water. The present work investigated the immobilization of Tc-99 (surrogated by Re) by heat-treating mixtures of an iron-phosphate glass with 1.5 to 6 wt.% KReO{sub 4} at {approx}1000 C. The Re retention in the glass was as high as {approx}1.2 wt. % while the loss of Re by evaporation during melting was {approx}50%. Re was uniformly distributed within the glass. The normalized Re release by the 7-day Product Consistency Test was {approx}0.39 g/m{sup 2}, comparable with that in phosphate-bonded ceramics and borosilicate glasses. These results suggest that iron-phosphate glass can provide a good matrix for immobilizing Tc-99.

  14. Method for heat treating iron-nickel-chromium alloy

    DOE Patents [OSTI]

    Merrick, Howard F. (Suffern, NY); Korenko, Michael K. (Rockville, MD)

    1982-01-01T23:59:59.000Z

    A method for heat treating an age-hardenable iron-nickel-chromium alloy to obtain a bimodal distribution of gamma prime phase within a network of dislocations, the alloy consisting essentially of about 25% to 45% nickel, 10% to 16% chromium, 1.5% to 3% of an element selected from the group consisting of molybdenum and niobium, about 2% titanium, about 3% aluminum, and the remainder substantially all iron. To obtain optimum results, the alloy is heated to a temperature of 1025.degree. C. to 1075.degree. C. for 2-5 minutes, cold-worked about 20% to 60%, aged at a temperature of about 775.degree. C. for 8 hours followed by an air-cool, and then heated to a temperature in the range of 650.degree. C. to 700.degree. C. for 2 hours followed by an air-cool.

  15. The magnetic properties of the iron-rich, iron-nickel-zinc alloys

    E-Print Network [OSTI]

    Gupton, Paul Stephen

    1961-01-01T23:59:59.000Z

    THE MAGNETIC PROPERTIES OF THE IRON-RICH, IRON-NICKEL-ZINC ALLOYS A Thesis By Paul Stephen Gupton Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE January 1961 Major Subject Nuclear Engineering THE MAGNETIC PROPERTIES OF THE IRON-RICH, IRON-NICKEL-ZINC ALLOYS A Thesis By Paul Stephen Gupton Approved as to style and content by: (Chairman of Ittee) Head of Oepartment...

  16. Kinetics of dissolution and bio-availability of iron in amorphous siliceous iron oxides

    E-Print Network [OSTI]

    Seaman, John C.

    1990-01-01T23:59:59.000Z

    KINETICS OF DISSOLUTION AND BIO-AVAILABILITY OF IRON IN AMORPHOUS SILICEOUS IRON OXIDES A Thesis By John C. Seaman Submitted to the Graduate College of Texas AIIM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1990 Major Subject: Soil Science KINETICS OF DISSOLUTION AND BIO-AVAILABILITY OF IRON IN AMORPHOUS SILICEOUS IRON OXIDES A Thesis By John C. Seaman Approved as to style and content by: Richard H. Loeppert (Chair of Committee...

  17. Correcting Iron Deficiencies in Grain Sorghum

    E-Print Network [OSTI]

    Livingston, Stephen; Coffman, Cloyce G.; Unruh, L. G.

    1996-02-20T23:59:59.000Z

    tial for chlorosis when grown on high- ese hybrids lack the ability to fully specif_ied and the iron should be determined by atomic absorption or a method that best indicates available iron in production f_ields. The ICAP (Inductive Coupled Argon Plasma...) method of analysis is prone to evaluate some of the iron on the clay structure as well as suspended iron. Therefore, adequate (but false) values are sometimes reported. One way to avoid this problem is to air-dry the samples instead of oven-drying them...

  18. Iron oxyhydroxide mineralization on microbial extracellular polysaccharides

    SciTech Connect (OSTI)

    Chan, Clara S.; Fakra, Sirine C.; Edwards, David C.; Emerson, David; Banfield, Jillian F.

    2010-06-22T23:59:59.000Z

    Iron biominerals can form in neutral pH microaerophilic environments where microbes both catalyze iron oxidation and create polymers that localize mineral precipitation. In order to classify the microbial polymers that influence FeOOH mineralogy, we studied the organic and mineral components of biominerals using scanning transmission X-ray microscopy (STXM), micro X-ray fluorescence ({mu}XRF) microscopy, and high-resolution transmission electron microscopy (HRTEM). We focused on iron microbial mat samples from a creek and abandoned mine; these samples are dominated by iron oxyhydroxide-coated structures with sheath, stalk, and filament morphologies. In addition, we characterized the mineralized products of an iron-oxidizing, stalk-forming bacterial culture isolated from the mine. In both natural and cultured samples, microbial polymers were found to be acidic polysaccharides with carboxyl functional groups, strongly spatially correlated with iron oxyhydroxide distribution patterns. Organic fibrils collect FeOOH and control its recrystallization, in some cases resulting in oriented crystals with high aspect ratios. The impact of polymers is particularly pronounced as the materials age. Synthesis experiments designed to mimic the biomineralization processes show that the polysaccharide carboxyl groups bind dissolved iron strongly but release it as mineralization proceeds. Our results suggest that carboxyl groups of acidic polysaccharides are produced by different microorganisms to create a wide range of iron oxyhydroxide biomineral structures. The intimate and potentially long-term association controls the crystal growth, phase, and reactivity of iron oxyhydroxide nanoparticles in natural systems.

  19. Nanostructure, Chemistry and Crystallography of Iron Nitride...

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

    Nanostructure, Chemistry and Crystallography of Iron Nitride Magnetic Materials by Ultra-High-Resolution Electron Microscopy and Related Methods DOE 2011 Vehicle Technologies...

  20. Lithium Insertion Chemistry of Some Iron Vanadates

    E-Print Network [OSTI]

    Patoux, Sebastien; Richardson, Thomas J.

    2008-01-01T23:59:59.000Z

    in A. Nazri, G.Pistoia (Eds. ), Lithium batteries, Science &structure materials in lithium cells, for a lower limitLithium Insertion Chemistry of Some Iron Vanadates Sbastien

  1. Method for producing iron-based catalysts

    DOE Patents [OSTI]

    Farcasiu, Malvina (Pittsburgh, PA); Kaufman, Phillip B. (Library, PA); Diehl, J. Rodney (Pittsburgh, PA); Kathrein, Hendrik (McMurray, PA)

    1999-01-01T23:59:59.000Z

    A method for preparing an acid catalyst having a long shelf-life is provided comprising doping crystalline iron oxides with lattice-compatible metals and heating the now-doped oxide with halogen compounds at elevated temperatures. The invention also provides for a catalyst comprising an iron oxide particle having a predetermined lattice structure, one or more metal dopants for said iron oxide, said dopants having an ionic radius compatible with said lattice structure; and a halogen bound with the iron and the metal dopants on the surface of the particle.

  2. Lithium Insertion Chemistry of Some Iron Vanadates

    E-Print Network [OSTI]

    Patoux, Sebastien; Richardson, Thomas J.

    2008-01-01T23:59:59.000Z

    G.Pistoia (Eds. ), Lithium batteries, Science & Technology,Keywords: Lithium batteries, iron vanadates, insertionelectrode materials for lithium batteries, (mostly layered

  3. Nanostructure, Chemistry and Crystallography of Iron Nitride...

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

    Nanostructure, Chemistry and Crystallography of Iron Nitride Magnetic Materials by Ultra-High-Resolution Electron Microscopy and Related Methods Nanostructure, Chemistry and...

  4. Ordered iron aluminide alloys having an improved room-temperature ductility and method thereof

    DOE Patents [OSTI]

    Sikka, Vinod K. (Clinton, TN)

    1992-01-01T23:59:59.000Z

    A process is disclosed for improving the room temperature ductility and strength of iron aluminide intermetallic alloys. The process involves thermomechanically working an iron aluminide alloy by means which produce an elongated grain structure. The worked alloy is then heated at a temperature in the range of about 650.degree. C. to about 800.degree. C. to produce a B2-type crystal structure. The alloy is rapidly cooled in a moisture free atmosphere to retain the B2-type crystal structure at room temperature, thus providing an alloy having improved room temperature ductility and strength.

  5. Role of microbial iron reduction in the dissolution of iron hydroxysulfate minerals

    E-Print Network [OSTI]

    and for radionuclides such as 226 Ra. These mineral-bound contaminants are considered immobilized under oxic conditions in mineral dissolution, releasing these bound contaminants. Reduction of structural sulfate in the ironRole of microbial iron reduction in the dissolution of iron hydroxysulfate minerals Elizabeth J. P

  6. Modeling Red Blood Cell and Iron Dynamics in Patients Undergoing Periodic EPO and Iron Treatments

    E-Print Network [OSTI]

    Modeling Red Blood Cell and Iron Dynamics in Patients Undergoing Periodic EPO and Iron Treatments H in the kidneys, that stimulates red blood cell (RBC) production. Without intervention, patients suffer from, erythrocyte, red blood cell, chronic kidney disease, dialysis, iron, neocytolysis, hepcidin, EPO, hemoglobin e

  7. Electrodynamics in Iron and Steel

    E-Print Network [OSTI]

    John Paul Wallace

    2009-06-03T23:59:59.000Z

    In order to calculate the reflected EM fields at low amplitudes in iron and steel, more must be understood about the nature of long wavelength excitations in these metals. A bulk piece of iron is a very complex material with microstructure, a split band structure, magnetic domains and crystallographic textures that affect domain orientation. Probing iron and other bulk ferromagnetic materials with weak reflected and transmitted inductive low frequency fields is an easy operation to perform but the responses are difficult to interpret because of the complexity and variety of the structures affected by the fields. First starting with a simple single coil induction measurement and classical EM calculation to show the error is grossly under estimating the measured response. Extending this experiment to measuring the transmission of the induced fields allows the extraction of three dispersion curves which define these internal fields. One dispersion curve yielded an exceedingly small effective mass of 1.8 10^{-39}kg (1.3 10^{-9} m_e) for those spin waves. There is a second distinct dispersion curve more representative of the density function of a zero momentum bound state rather than a propagating wave. The third dispersion curve describes a magneto-elastic coupling to a very long wave length propagating mode. These experiments taken together display the characteristics of a high temperature Bose-Einstein like condensation that can be initiated by pumping two different states. A weak time dependent field drives the formation of coupled J=0 spin wave pairs with the reduced effective mass reflecting the increased size of the coherent state. These field can dominate induction measurements well past the Curie temperature.

  8. The production of iron carbide

    SciTech Connect (OSTI)

    Anderson, K.M.; Scheel, J. [Nucor Iron Carbide, Inc., Point Lisas (Trinidad and Tobago)

    1997-12-31T23:59:59.000Z

    From start-up in 1994 to present, Nucor`s Iron Carbide plant has overcome many obstacles in achieving design production. Many of these impediments were due to flaws in equipment design. With the integration existing within the plant, limitations in any one system reduced the operating capacity of others. For this reason, as modifications were made and system capacities were increased, the need for additional modifications became apparent. Subsequently, operating practices, maintenance scheduling, employee incentives, and production objectives were continually adapted. This paper discusses equipment and design corrections and the quality issues that contributed to achieving the plant`s production capacity.

  9. Oceanographic and ecological consequences of iron localization in phytoplankton photosystems

    E-Print Network [OSTI]

    Hopkinson, Brian Matthew

    2007-01-01T23:59:59.000Z

    Y. Zhang, and K.W. Bruland. 1998. An iron limitation mosaicRue, J. Conn, and K.W. Bruland. 2002. Phytoplankton ironY. Zhang, and K.W. Bruland. 1998. An iron limitation mosaic

  10. Iron Cycling and Redox Evolution in the Precambrian

    E-Print Network [OSTI]

    Planavsky, Noah John

    2012-01-01T23:59:59.000Z

    J.C.G. , 1984. Suboxic Diagenesis in Banded Iron Formations.J.C.G. , 1984. Suboxic Diagenesis in Banded Iron Formations.J.C.G. , 1984. Suboxic diagenesis in banded iron formations.

  11. The iron reduction ability of various rose rootstocks

    E-Print Network [OSTI]

    McDonald, Garry Vernon

    1990-01-01T23:59:59.000Z

    and day 14. . . . . . . . 3. Summation of peak iron reduction rates in the rose genotypes at day 7, and FeEDTA concentration of peak reduction. . . . . . . . . . . . . . . Page . . . . 30 . . . . 36 . . . . 38 CHAPTER I INTRODUCTION Iron nutrition..., usually as oxides. The amount of iron that is soluble in a soil is quite low compared to the total iron content, being dependent on the solubility of inorganic iron oxides. Soluble forms of inorganic iron include Fe +, Fe(OH) +, Fe(OH)g+ and Fe...

  12. Dechlorination of TCE with palladized iron

    DOE Patents [OSTI]

    Fernando, Quintus (Tucson, AZ); Muftikian, Rosy (Tucson, AZ); Korte, Nic (Grand Junction, CO)

    1997-01-01T23:59:59.000Z

    The present invention relates to various methods, such as an above-ground method and an in-ground method, of using a palladized iron bimetallic system for the dechlorination of chlorinated organic compounds from various effluents or contaminated soil containing the same. The use of palladized iron bimetallic system results in the dechlorination of the chlorinated organic compound into environmentally safe reaction products.

  13. Production of iron from metallurgical waste

    DOE Patents [OSTI]

    Hendrickson, David W; Iwasaki, Iwao

    2013-09-17T23:59:59.000Z

    A method of recovering metallic iron from iron-bearing metallurgical waste in steelmaking comprising steps of providing an iron-bearing metallurgical waste containing more than 55% by weight FeO and FeO equivalent and a particle size of at least 80% less than 10 mesh, mixing the iron-bearing metallurgical waste with a carbonaceous material to form a reducible mixture where the carbonaceous material is between 80 and 110% of the stoichiometric amount needed to reduce the iron-bearing waste to metallic iron, and as needed additions to provide a silica content between 0.8 and 8% by weight and a ratio of CaO/SiO.sub.2 between 1.4 and 1.8, forming agglomerates of the reducible mixture over a hearth material layer to protect the hearth, heating the agglomerates to a higher temperature above the melting point of iron to form nodules of metallic iron and slag material from the agglomerates by melting.

  14. Helium Migration in Iron Christ's College

    E-Print Network [OSTI]

    Cambridge, University of

    Helium Migration in Iron Y. Zhang Christ's College Department of Materials Science and Metallurgy the achievement at all. ii #12;Abstract A theoretical model of helium migration in body centred cubic (BCC)structure irons has been developed using the concept of the effective helium diffusion coeffi- cient

  15. Introduction Southern Ocean natural iron fertilization

    E-Print Network [OSTI]

    led to immediate localized phytoplankton blooms. They also have stimulated con- siderable speculation processes motivated three field programs in 2004 2006. The United Kingdom led the "CROZet natural iron into surface waters, recycling of nutrients, reactivity of iron, and phytoplankton physiology. This special

  16. Preparations of rare earth-iron alloys by thermite reduction

    DOE Patents [OSTI]

    Schmidt, Frederick A. (Ames, IA); Peterson, David T. (Ames, IA); Wheelock, John T. (Nevada, IA)

    1986-09-16T23:59:59.000Z

    An improved method for the preparation of high-purity rare earth-iron alloys by the aluminothermic reduction of a mixture of rare earth and iron fluorides.

  17. Morphology and Oxide Shell Structure of Iron Nanoparticles Grown...

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

    Oxide Shell Structure of Iron Nanoparticles Grown by Sputter-Gas-Aggregation. Morphology and Oxide Shell Structure of Iron Nanoparticles Grown by Sputter-Gas-Aggregation. Abstract:...

  18. Production and Early Preservation of Lipid Biomarkers in Iron...

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

    Production and Early Preservation of Lipid Biomarkers in Iron Hot Springs. Production and Early Preservation of Lipid Biomarkers in Iron Hot Springs. Abstract: The...

  19. Bioreduction of hematite nanoparticles by the dissimilatory iron...

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

    nanoparticles by the dissimilatory iron reducing bacterium Shewanella oneidensis MR-1. Bioreduction of hematite nanoparticles by the dissimilatory iron reducing bacterium...

  20. Electrochemical Studies of Packed Iron Powder Electrodes: Effects...

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

    of Packed Iron Powder Electrodes: Effects of Common Constituents of Natural Waters on Corrosion Electrochemical Studies of Packed Iron Powder Electrodes: Effects of Common...

  1. Microbial Reduction of Uranium under Iron- and Sulfate-reducing...

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

    Uranium under Iron- and Sulfate-reducing Conditions: Effect of Amended Goethite on Microbial Community Microbial Reduction of Uranium under Iron- and Sulfate-reducing Conditions:...

  2. Manufacturing Energy and Carbon Footprint - Sector: Iron and...

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

    Iron and Steel (NAICS 3311, 3312), October 2012 (MECS 2006) Manufacturing Energy and Carbon Footprint - Sector: Iron and Steel (NAICS 3311, 3312), October 2012 (MECS 2006)...

  3. Watermelon-like iron nanoparticles: Cr doping effect on magnetism...

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

    Watermelon-like iron nanoparticles: Cr doping effect on magnetism and magnetization interaction reversal. Watermelon-like iron nanoparticles: Cr doping effect on magnetism and...

  4. Iron is the Key to Preserving Dinosaur Soft Tissue

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

    the iron associated with fossil tissues, which occurred primarily as the mineral goethite. They then employed experiments to show that iron, derived from hemoglobin lysate,...

  5. Iron Cycling and Redox Evolution in the Precambrian

    E-Print Network [OSTI]

    Planavsky, Noah John

    2012-01-01T23:59:59.000Z

    aqueous ferrous iron and goethite. Earth and PlanetaryAdsorption of Phosphate on Goethite in Marine Electrolytes.aqueous ferrous iron and goethite and found an equilibrium

  6. Iron phosphate glass for immobilization of 99Tc

    SciTech Connect (OSTI)

    Xu, Kai; Hrma, Pavel R.; Um, Wooyong; Heo, Jong

    2013-06-15T23:59:59.000Z

    Technetium-99 (99Tc) can bring serious environmental threats because of its long half-life (t1/2 = ~2.1 x 105 years), high fission yield (~6%), and high solubility and mobility in the ground water. The high volatility makes it difficult to immobilize 99Tc in continuous melters vitrifying 99Tc-containing nuclear wastes in borosilicate glasses. This work explores a possibility of incorporating a high concentration of 99Tc, surrogated by the non-radioactive Re, in an iron phosphate glass by melting mixtures of iron phosphate glass frits with 1.5-6 mass% KReO4 at ~1000 C. The retention of Re achieved was ~1.1 mass%. The normalized Re release by the 7-day Product Consistency Test was <10*2 g/m2. Surprisingly, the Re escaped from the melt within a short time of heating, especially when the temperature was increased. Therefore, 99Tc volatilization would still be a challenging task for its immobilization in iron phosphate glasses.

  7. Co-Production of Electricity and Hydrogen Using a Novel Iron-based Catalyst

    SciTech Connect (OSTI)

    Hilaly, Ahmad; Georgas, Adam; Leboreiro, Jose; Arora, Salil; Head, Megann; Trembly, Jason; Turk, Brian; Gupta, Raghubir

    2011-09-30T23:59:59.000Z

    The primary objective of this project was to develop a hydrogen production technology for gasification applications based on a circulating fluid-bed reactor and an attrition resistant iron catalyst. The work towards achieving this objective consisted of three key activities: Development of an iron-based catalyst suitable for a circulating fluid-bed reactor Design, construction, and operation of a bench-scale circulating fluid-bed reactor system for hydrogen production Techno-economic analysis of the steam-iron and the pressure swing adsorption hydrogen production processes. This report describes the work completed in each of these activities during this project. The catalyst development and testing program prepared and iron-based catalysts using different support and promoters to identify catalysts that had sufficient activity for cyclic reduction with syngas and steam oxidation and attrition resistance to enable use in a circulating fluid-bed reactor system. The best performing catalyst from this catalyst development program was produced by a commercial catalyst toll manufacturer to support the bench-scale testing activities. The reactor testing systems used during material development evaluated catalysts in a single fluid-bed reactor by cycling between reduction with syngas and oxidation with steam. The prototype SIP reactor system (PSRS) consisted of two circulating fluid-bed reactors with the iron catalyst being transferred between the two reactors. This design enabled demonstration of the technical feasibility of the combination of the circulating fluid-bed reactor system and the iron-based catalyst for commercial hydrogen production. The specific activities associated with this bench-scale circulating fluid-bed reactor systems that were completed in this project included design, construction, commissioning, and operation. The experimental portion of this project focused on technical demonstration of the performance of an iron-based catalyst and a circulating fluid-bed reactor system for hydrogen production. Although a technology can be technically feasible, successful commercial deployment also requires that a technology offer an economic advantage over existing commercial technologies. To effective estimate the economics of this steam-iron process, a techno-economic analysis of this steam iron process and a commercial pressure swing adsorption process were completed. The results from this analysis described in this report show the economic potential of the steam iron process for integration with a gasification plant for coproduction of hydrogen and electricity.

  8. 2iron-based superconductors

    SciTech Connect (OSTI)

    Bossoni, L [University of Pavia-CNISM; Romano, L [University of Parma, Parco Area dell Scienze; Canfield, Paul C [Ames Laboratory; Lascialfari, A [Universita degli Studi di Milano

    2014-10-08T23:59:59.000Z

    We measured the static uniform spin susceptibility of Ba(Fe1?xRhx)2As2 iron-based superconductors, over a broad range of doping (0.041x0.094) and magnetic fields. At small fields (H1kOe) we observed, above the transition temperature Tc, the occurrence of precursor diamagnetism, which is not ascribable to the GinzburgLandau theory. On the contrary, our data agree with a phase fluctuation model, which has been used to interpret a similar phenomenology occurring in the high- Tc cuprate superconductors. Additionally, in the presence of strong fields, the unconventional fluctuating diamagnetism is suppressed, whereas GinzburgLandau fluctuations are found, in agreement with literature.

  9. Dechlorination of TCE with palladized iron

    DOE Patents [OSTI]

    Fernando, Q.; Muftikian, R.; Korte, N.

    1997-03-18T23:59:59.000Z

    The present invention relates to various methods, such as an above-ground method and an in-ground method, of using a palladized iron bimetallic system for the dechlorination of chlorinated organic compounds from effluents containing the same. The use of palladized iron bimetallic system results in the dechlorination of the chlorinated organic compound into environmentally safe reaction products. The present invention also provides kits, devices, and other instruments that use the above-mentioned palladized iron bimetallic system for the dechlorination of chlorinated organic compounds. 10 figs.

  10. Dechlorination of TCE with palladized iron

    DOE Patents [OSTI]

    Fernando, Q.; Muftikian, R.; Korte, N.

    1998-06-02T23:59:59.000Z

    The present invention relates to various methods, such as an above-ground method and an in-ground method, of using a palladized iron bimetallic system for the dechlorination of chlorinated organic compounds from effluents containing the same. The use of palladized iron bimetallic system results in the dechlorination of the chlorinated organic compound into environmentally safe reaction products. The present invention also provides kits, devices, and other instruments that use the above-mentioned palladized iron bimetallic system for the dechlorination of chlorinated organic compounds. 10 figs.

  11. MOSSBAUER STUDIES ON THE STATE OF TIN ATOMS SEGREGATED AT THE GRAIN BOUNDARY OF IRON AND IRON ALLOYS

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    MOSSBAUER STUDIES ON THE STATE OF TIN ATOMS SEGREGATED AT THE GRAIN BOUNDARY OF IRON AND IRON iron and iron alloys is investigated by Mossbauer source experiments. It is found that the electronic. The Mossbauer effect should be potentially a powerful technique to investigate the binding state of individual

  12. Thermal transport properties of grey cast irons

    SciTech Connect (OSTI)

    Hecht, R.L. [Ford Motor Co., Dearborn, MI (United States). Ford Research Lab.; Dinwiddie, R.B.; Porter, W.D.; Wang, Hsin [Oak Ridge National Lab., TN (United States)

    1996-10-01T23:59:59.000Z

    Thermal diffusivity and thermal conductivity of grey cast iron have been measured as a function of graphite flake morphology, chemical composition, and position in a finished brake rotor. Cast iron samples used for this investigation were cut from ``step block`` castings designed to produce iron with different graphite flake morphologies resulting from different cooling rates. Samples were also machined from prototype alloys and from production brake rotors representing a variation in foundry practice. Thermal diffusivity was measured at room and elevated temperatures via the flash technique. Heat capacity of selected samples was measured with differential scanning calorimetry, and these results were used to calculate the thermal conductivity. Microstructure of the various cast iron samples was quantified by standard metallography and image analysis, and the chemical compositions were determined by optical emission spectroscopy.

  13. System and method for producing metallic iron

    DOE Patents [OSTI]

    Englund, David J.; Schlichting, Mark; Meehan, John; Crouch, Jeremiah; Wilson, Logan

    2014-07-29T23:59:59.000Z

    A method of production of metallic iron nodules comprises assembling a hearth furnace having a moveable hearth comprising refractory material and having a conversion zone and a fusion zone, providing a hearth material layer comprising carbonaceous material on the refractory material, providing a layer of reducible material comprising and iron bearing material arranged in discrete portions over at least a portion of the hearth material layer, delivering oxygen gas into the hearth furnace to a ratio of at least 0.8:1 ponds of oxygen to pounds of iron in the reducible material to heat the conversion zone to a temperature sufficient to at least partially reduce the reducible material and to heat the fusion zone to a temperature sufficient to at least partially reduce the reducible material, and heating the reducible material to form one or more metallic iron nodules and slag.

  14. Iron and the ecology of marine microbes

    E-Print Network [OSTI]

    Ventouras, Laure-Anne

    2013-01-01T23:59:59.000Z

    Iron is a cofactor of a number biochemical reactions that are essential for life. In the marine environment, this micronutrient is a scarce resource that limits processes of global importance such as photosynthesis and ...

  15. Dechlorination of TCE with palladized iron

    DOE Patents [OSTI]

    Fernando, Q.; Muftikian, R.; Korte, N.

    1997-04-01T23:59:59.000Z

    The present invention relates to various methods, such as an above-ground method and an in-ground method, of using a palladized iron bimetallic system for the dechlorination of chlorinated organic compounds from various effluents or contaminated soil containing the same. The use of palladized iron bimetallic system results in the dechlorination of the chlorinated organic compound into environmentally safe reaction products. 10 figs.

  16. Microstructural Characterization of Nodular Ductile Iron

    SciTech Connect (OSTI)

    Springer, H K

    2012-01-03T23:59:59.000Z

    The objective of this study is to quantify the graphite particle phase in nodular ductile iron (NDI). This study provides the basis for initializing microstructure in direct numerical simulations, as part of developing microstructure-fracture response models. The work presented here is a subset of a PhD dissertation on spall fracture in NDI. NDI is an ideal material for studying the influence of microstructure on ductile fracture because it contains a readily identifiable second-phase particle population, embedded in a ductile metallic matrix, which serves as primary void nucleation sites. Nucleated voids grow and coalesce under continued tensile loading, as part of the micromechanisms of ductile fracture, and lead to macroscopic failure. For this study, we used 2D optical microscopy and quantitative metallography relationships to characterize the volume fraction, size distribution, nearest-neighbor distance, and other higher-order metrics of the graphite particle phase. We found that the volume fraction was {Phi} = 0.115, the average particle diameter was d{sub avg} = 25.9 {mu}m, the Weibull shape and scaling parameters were {beta} = 1.8 and {eta} = 29.1 {mu}m, respectively, the (first) nearest neighbor distance was L{sub nn} = 32.4 {mu}m, the exponential coefficients for volume fraction fluctuations was A{sub {Phi}} = 1.89 and B{sub {Phi}} = -0.59, respectively. Based on reaching a coefficient-of-variation (COV) of 0.01, the representative volume element (RVE) size was determined to be 8.9L{sub nn} (288 {mu}m).

  17. Kinetics of the reduction of the zinc oxide in zinc ferrite with iron

    SciTech Connect (OSTI)

    Donald, J.R.; Pickles, C.A. [Queen`s Univ., Kingston, Ontario (Canada). Dept. of Materials and Metallurgical Engineering

    1995-12-31T23:59:59.000Z

    Electric arc furnace (EAF) dust, which can be considered as a by-product of the steel recycling process, contains significant quantities of recoverable zinc and iron, as well as hazardous elements such as cadmium, lead and chromium, which can be leached by ground water. The zinc in the EAF dust is found almost entirely in the form of either zinc oxide or zinc ferrite, the latter accounting for 20 to 50 percent of the total zinc. It is important that an efficient process be developed which renders the dust inert, while reclaiming the valuable metals to off-set processing costs. During the conventional carbothermic reduction processes, iron is formed, and this iron can participate in the reduction of the zinc oxide in zinc ferrite. In the present work, the reduction of the zinc oxide in zinc ferrite by iron according to the following reaction: ZnO{sup {sm_bullet}}Fe{sub 2}O{sub (s.s.)} + 2 Fe{sub (s)} = Zn{sub (g)} + 4 FeO{sub (s)} was studied in an argon atmosphere using a thermogravimetric technique. First, a thermodynamic analysis was performed using the F*A*C*T computational system. Then, the effects of briquette aspect ratio (l/d), temperature, zinc ferrite particle size, amount of iron added, as well as additions such as lime, sodium chloride, and calcium fluoride were investigated.

  18. Effect of different intravenous iron preparations on lymphocyte intracellular reactive oxygen species generation and subpopulation survival.

    E-Print Network [OSTI]

    Gupta, Ajay; Zhuo, Jiaying; Zha, Junli; Reddy, Srinivasa; Olp, Jonathan; Pai, Amy

    2010-01-01T23:59:59.000Z

    IV iron compounds induced greater intracellular ROS generation,IV iron preparations on intracellular reactive oxygen species generationIV iron preparations on intracellular immune cell ROS generation

  19. Iron availability limits the ocean nitrogen inventory stabilizing feedbacks between marine denitrification and nitrogen fixation

    E-Print Network [OSTI]

    Moore, J. Keith; Doney, Scott C

    2007-01-01T23:59:59.000Z

    Falkowski (2001), Iron availability, cellular iron quotas,C. Doney (2007), Iron availability limits the ocean nitrogentemperature, P and Fe availability. Diazotrophs have higher

  20. Iron speciation in urban dust

    SciTech Connect (OSTI)

    Elzinga, E.J.; Fitts, J.; Gao, Y.; Tappero, R.

    2011-08-01T23:59:59.000Z

    An improved understanding of anthropogenic impacts on ocean fertility requires knowledge of anthropogenic dust mineralogy and associated Fe speciation as a critical step toward developing Fe solubility models constrained by mineralogical composition. This study explored the utility of micro-focused X-ray absorption spectroscopy ({mu}-XAS) in characterizing the speciation of Fe in urban dust samples. A micro-focused beam of 10 x 7 {mu}m made possible the measurement of the Fe K edge XAS spectra of individual dust particles in the PM5.6 size fraction collected in Newark, New Jersey, USA. Spectral analysis indicated the presence of mixtures of Fe-containing minerals within individual dust particles; we observed significant magnetite content along with other Fe(III)-(hydr)oxide minerals which could not be conclusively identified. Our data indicate that detailed quantitative determination of Fe speciation requires extended energy scans to constrain the types and relative abundance of Fe species present. We observe heterogeneity in Fe speciation at the dust particle level, which underscores the importance of analyzing a statistically adequate number of particles within each dust sample. Where possible, {mu}-XAS measurements should be complemented with additional characterization techniques such as {mu}-XRD and bulk XAS to obtain a comprehensive picture of the Fe speciation in dust materials. X-ray microprobes should be used to complement bulk methods used to determine particle composition, methods that fail to record particle heterogeneity. Keywords - Urban dust; Iron; Speciation; Micro-focused X-ray absorption spectroscopy.

  1. Work For Others Agreements | Partnerships | ORNL

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork & Life at

  2. Work and Life Balance | GE Global Research

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork &

  3. Catalytic iron oxide for lime regeneration in carbonaceous fuel combustion

    SciTech Connect (OSTI)

    Shen, M.; Yang, R.T.

    1980-09-30T23:59:59.000Z

    Lime utilization for sulfurous oxides absorption in fluidized combustion of carbonaceous fuels is improved by impregnation of porous lime particulates with iron oxide. The impregnation is achieved by spraying an aqueous solution of mixed iron sulfate and sulfite on the limestone before transfer to the fluidized bed combustor, whereby the iron compounds react with the limestone substrate to form iron oxide at the limestone surface. It is found that iron oxide present in the spent limestone acts as a catalyst to regenerate the spent limestone in a reducing environment. With only small quantities of iron oxide the calcium can be recycled at a significantly increased rate.

  4. Tropical forest soil microbial communities couple iron and carbon biogeochemistry

    SciTech Connect (OSTI)

    Dubinsky, E.A.; Silver, W.L.; Firestone, M.K.

    2009-10-15T23:59:59.000Z

    We report that iron-reducing bacteria are primary mediators of anaerobic carbon oxidation in upland tropical soils spanning a rainfall gradient (3500 - 5000 mm yr-1) in northeast Puerto Rico. The abundant rainfall and high net primary productivity of these tropical forests provide optimal soil habitat for iron-reducing and iron-oxidizing bacteria. Spatially and temporally dynamic redox conditions make iron-transforming microbial communities central to the belowground carbon cycle in these wet tropical forests. The exceedingly high abundance of iron-reducing bacteria (up to 1.2 x 10{sup 9} cells per gram soil) indicated that they possess extensive metabolic capacity to catalyze the reduction of iron minerals. In soils from the higher rainfall sites, measured rates of ferric iron reduction could account for up to 44 % of organic carbon oxidation. Iron reducers appeared to compete with methanogens when labile carbon availability was limited. We found large numbers of bacteria that oxidize reduced iron at sites with high rates of iron reduction and large numbers of iron-reducers. the coexistence of large populations of ironreducing and iron-oxidizing bacteria is evidence for rapid iron cycling between its reduced and oxidized states, and suggests that mutualistic interactions among these bacteria ultimately fuel organic carbon oxidation and inhibit CH4 production in these upland tropical forests.

  5. Supplementary: Learning for Structured Prediction Using Approximate Subgradient Descent with Working Sets

    E-Print Network [OSTI]

    Fua, Pascal

    that minimizes the empirical objective function: L(w) = N n=1 l(Y n , Y , w) + 1 2C ||w|| 2 . (1) At each on the training example (Xn , Y n ), yielding: f(w, n) = l(Y n , Y , w) + 1 2C ||w|| 2 . (2) We consider the case where l : W R is a convex loss function so that f(w) is a -strongly convex function where = 1 C

  6. Iron and Manganese in Potable Water

    E-Print Network [OSTI]

    Young, Clifford Caudy

    1911-06-01T23:59:59.000Z

    none 22. Hays 469.0 1.0 none 23. Hays .55 24. Peabody 830.0 .5 trace 25. Caldwell 458.0 2.0 trace 26. Lyons 456.0 .1 trace 27. Osborne 377.0 .3 none 28. Herington 608,0 .1 trace 29. Sterling - - _ .1 .036 30. Waverly 546,0 .2 none 31. Clifton 350.... The occurence of a black peaty layer overlying white sand containing iron, the white sand in turn overlying red sand containing 10. oxidize^ iron, is a familiar sight to all engineers who have made excavations. Here the carbon dioxide produced...

  7. Steam reforming utilizing iron oxide catalyst

    SciTech Connect (OSTI)

    Setzer, H. T.; Bett, J. A. S.

    1985-06-11T23:59:59.000Z

    High activity steam reforming iron oxide catalysts are described. Such catalysts can be unsupported utilizing at least 90% by weight iron oxide and various modifiers (Ai/sub 2/O/sub 3/, K/sub 2/O, CaO, SiO/sub 2/) or unmodified and supported on such things as alumina, CaO impregnated alumina, and lanthanum stabilized alumina. When used in steam reformers such as autothermal and tubular steam reformers, these catalysts demonstrate much improved resistance to carbon plugging.

  8. Iron Availability in the Southern Ocean

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation Peer Review 2012IowaFebruaryIronIron

  9. Preparations of rare earth-iron alloys by thermite reduction

    DOE Patents [OSTI]

    Schmidt, F.A.; Peterson, D.T.; Wheelock, J.T.

    1985-10-28T23:59:59.000Z

    Disclosed is an improved method for the preparation of high-purity rare earth-iron alloys by the aluminothermic reduction of a mixture of rare earth and iron fluorides.

  10. Candidate anode materials for iron production by molten oxide electrolysis

    E-Print Network [OSTI]

    Paramore, James D

    2010-01-01T23:59:59.000Z

    Molten oxide electrolysis (MOE) has been identified by the American Iron and Steel Institute (AISI) as one of four possible breakthrough technologies to alleviate the environmental impact of iron and steel production. This ...

  11. Iron-based Superconductor Simulations Spin Out New Possibilities...

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

    in 15 iron-based materials, including iron compounds that are high-temperature superconductors (images d-h). The x axis shows the momentum of the spin excitation in selected...

  12. The marine biogeochemistry of dissolved and colloidal iron

    E-Print Network [OSTI]

    Fitzsimmons, Jessica Nicole

    2013-01-01T23:59:59.000Z

    Iron is a redox active trace metal micronutrient essential for primary production and nitrogen acquisition in the open ocean. Dissolved iron (dFe) has extremely low concentrations in marine waters that can drive phytoplankton ...

  13. arabian iron age: Topics by E-print Network

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

    iron deficiency should be the goal of nutritional intervention programs. In the United States, approximately 5 % of children from 1-5 years of age suffer from iron deficiency...

  14. Using iron line reverberation and spectroscopy to distinguish Kerr and non-Kerr black holes

    E-Print Network [OSTI]

    Jiachen Jiang; Cosimo Bambi; James F. Steiner

    2015-04-21T23:59:59.000Z

    The iron K$\\alpha$ line commonly observed in the X-ray spectrum of both stellar-mass and supermassive black hole candidates is produced by the illumination of a cold accretion disk by a hot corona. In this framework, the activation of a new flaring region in the hot corona imprints a time variation on the iron line spectrum. Future X-ray facilities with high time resolution and large effective areas may be able to measure the so-called 2-dimensional transfer function; that is, the iron line profile detected by a distant observer as a function of time in response to an instantaneous flare from the X-ray primary source. This work is a preliminary study to determine if and how such a technique can provide more information about the spacetime geometry around the compact object than the already possible measurements of the time-integrated iron line profile. Within our simplified model, we find that a measurement of iron line reverberation can improve constraints appreciably given a sufficiently strong signal, though that most of the information is present in the time-integrated spectrum. Our aim is to test the Kerr metric. We find that current X-ray facilities and data are unable to provide strong tests of the Kerr nature of supermassive black hole candidates. We consider an optimistic case of $10^5$ iron line photons from a next-generation data set. With such data, the reverberation model improves upon the spectral constraint by an order of magnitude.

  15. Lithium Iron Phosphate Composites for Lithium Batteries | Argonne...

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

    Lithium Iron Phosphate Composites for Lithium Batteries Technology available for licensing: Inexpensive, electrochemically active phosphate compounds with high functionality for...

  16. Minnesota Jobs to Come with Efficient Iron Plant

    Broader source: Energy.gov [DOE]

    New energy-efficient iron plant offers a ray of hope for workers after local mining company shuts down.

  17. Going to Work: Understanding Work Schedules

    E-Print Network [OSTI]

    Hoffman, Rosemarie

    2000-07-20T23:59:59.000Z

    have to work: John, Joyce, Jessie and Mary are full- time employees, and Jan is part-time. Each employee is required to report to This is an example of a work schedule that tells you when and what you have to do: It is best to arrive at least 5 to 15... John, Jessie Joyce Mary Wednesday Joyce, Mary John Jan Thursday Jessie, Joyce Jan Mary Friday Jan, Jessie Joyce John Saturday Mary, Joyce John Jessie Please answer the following questions about the work schedule: 1. What week is this work schedule...

  18. Versatile ferrofluids based on polyethylene glycol coated iron oxide nanoparticles

    E-Print Network [OSTI]

    Versatile ferrofluids based on polyethylene glycol coated iron oxide nanoparticles W. Brullot a coated iron oxide nanoparticles were obtained by a facile protocol and thoroughly characterized to chemical treatments and biocompatible [12]. An impression of an iron oxide nanoparticle coated with a PEG

  19. The Adsorption of Arsenic Oxyacids to Iron Oxyhydroxide Columns

    E-Print Network [OSTI]

    The Adsorption of Arsenic Oxyacids to Iron Oxyhydroxide Columns Including Studies of Weakly. (photo: Mr. J. Mhler, image editing Dr. D. Lundberg) #12;The Adsorption of Arsenic Oxyacids to Iron of columns and iron content of the adsorbent material. Experiments have shown that adsorption does occur

  20. Bronze metallurgy in Iron Age central Europe : a metallurgical study of Early Iron Age bronzes from Sti?na, Slovenia.

    E-Print Network [OSTI]

    Cooney, Elizabeth Myers

    2007-01-01T23:59:59.000Z

    The Early Iron Age (750-450 BCE) marks a time in the European Alpine Region in which cultural ideologies surrounding bronze objects and bronze production were changing. Iron was becoming the preferred material from which ...

  1. Iron distribution and phytoplankton iron limitation in the southern California Current System

    E-Print Network [OSTI]

    King, Andrew Luke

    2008-01-01T23:59:59.000Z

    layer density (sigma-theta) are shown for six CalCOFI surveysolution (Sigma-Aldrich) in 0.016 M ultrapure HCl every sixsigma-theta. Macronutrients, dissolved iron, and chl were elevated during all six

  2. QEP WORKING GROUP CHARGES Assessment Working Group

    E-Print Network [OSTI]

    Liu, Paul

    and a framework that details timelines, leadership, resource allocation, and an assessment plan that is clearlyQEP WORKING GROUP CHARGES Assessment Working Group The topic of the QEP should fit should be supported by a thorough understanding of the institutional context and by assessment data

  3. Review: [Untitled] Reviewed Work(s)

    E-Print Network [OSTI]

    Elman, Benjamin

    Review: [Untitled] Reviewed Work(s): Dodonæus in Japan: Translation and the Scientific Mind to leading academic journals and scholarly literature from around the world. The Archive is supported-for-profit organization with a mission to help the scholarly community take advantage of advances in technology. For more

  4. Drinking Water Problems: Iron and Manganese

    E-Print Network [OSTI]

    Dozier, Monty; McFarland, Mark L.

    2004-02-20T23:59:59.000Z

    . The chemical must be in the water for at least 20 minutes for oxi- dation to take place, longer if the water contains colloidal iron/manganese. After solid particles have formed they are filtered, often with a sand filter. Adding aluminum sulfate (alum...

  5. Iron Air collision with high density QCD

    E-Print Network [OSTI]

    Hans-Joachim Drescher

    2006-12-08T23:59:59.000Z

    The color glass condensate approach describes successfully heavy ion collisions at RHIC. We investigate Iron-air collisions within this approach and compare results to event generators commonly used in air shower simulations. We estimate uncertainties in the extrapolation to GZK energies and discuss implications for air shower simulations.

  6. Superconductivity in iron compounds G. R. Stewart

    E-Print Network [OSTI]

    Wu, Zhigang

    of the superconductivity in this new class of compounds. These iron pnictide and chalcogenide (FePn/Ch) superconductors-phonon coupled ``conventional'' superconductors. Clearly, superconductivity and magnetism or magnetic of magnetism and superconductivity in FePn/Ch superconductors 1606 D. Tc and TS=TSDW versus pressure 1607 1

  7. Ligand effects on bioinspired iron complexes

    E-Print Network [OSTI]

    Mejia Rodriguez, Ma. del Rosario

    2005-11-01T23:59:59.000Z

    - phosphaadamantane, PTA, coordinates to the Fe centers forming the disubstituted complex (m-pdt)[Fe(CO)2PTA]2, which presents one PTA in each iron in a transoid arrangement. Substitution of one CO ligand in the (m-pdt)[Fe(CO)3]2 parent complex forms the asymmetric (m-pdt)[Fe...

  8. ICG 2000 Amsterdam Glass in the new Millennium Absorption Spectra of Iron and Water in Silicate Glasses

    E-Print Network [OSTI]

    Glebov, Leon

    ICG 2000 Amsterdam ­ Glass in the new Millennium Absorption Spectra of Iron and Water in Silicate of the absorption spectrum of silicate glasses and determination of absolute concentrations of ferric, ferrous of silicate glass. 2. Experimental The same glass samples were used in this work as were described in [3, 4

  9. The Romelt Process -- Prospects for pig iron production in North America

    SciTech Connect (OSTI)

    Thompson, M.W. [ICF Kaiser International, Inc., Fairfax, VA (United States); Weston, T.R. [ICF Kaiser International, Inc., Pittsburgh, PA (United States)

    1997-12-31T23:59:59.000Z

    The iron and steel industry in North America is undergoing dramatic changes and is being driven by three factors. First, the introduction of new technologies and pace of innovation has placed North America at the forefront of commercializing new technologies. Second, new technologies have changed the market for steelmaking raw materials and stimulated an industry-wide discussion of the ``value in use`` of scrap and scrap substitutes. Finally, an increase in environmental costs has fundamentally changed management`s view toward the environmental impact of iron and steelmaking, particularly in the integrated steel industry. This paper discusses the Romelt Process, an emerging ironmaking technology developed by the Moscow Institute for Steels and Alloys, in the context of these industry trends. ICF Kaiser, a worldwide licensee to the Romelt technology, believes that the current North American climate is probably the most conducive of all steelmaking regions to the commercialization of new technologies. Liquid or cast pig iron, the product of the Romelt Process, is the highest value feed for both the EAF and BOF steelmaking processes. In terms of environmental benefits, Romelt uses non-coking coals for its fuel and reductant, and has a proven large scale pilot plant track record in smelting both low grade fine ores and iron bearing wastes from the integrated works.

  10. Trails Working Group

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in2, 2003Tool ofTopo II:7.1TrackingTrails » Trails

  11. Visualizing Iron Deposition in Multiple Sclerosis Cadaver Brains

    SciTech Connect (OSTI)

    Habib, Charbel A.; Zheng Weili; Mark Haacke, E. [Department Of Biomedical Engineering, Wayne State University, Detroit, MI 48202 (United States); Webb, Sam [Stanford Synchrotron Radiation Lightsource, Stanford Linear Accelerator Complex National Accelerator Laboratory, Menlo Park, California (United States); Nichol, Helen [Department of Anatomy and Cell Biology, University of Saskatchewan, 107 Wiggins Rd. Rm A302, Saskatoon, SK S7N5E5 (Canada)

    2010-07-23T23:59:59.000Z

    Aim: To visualize and validate iron deposition in two cases of multiple sclerosis using rapid scanning X-Ray Fluorescence (RS-XRF) and Susceptibility Weighted Imaging (SWI). Material and Methods: Two (2) coronal cadaver brain slices from patients clinically diagnosed with multiple sclerosis underwent magnetic resonance imaging (MRI), specifically SWI to image iron content. To confirm the presence of iron deposits and the absence of zinc-rich myelin in lesions, iron and zinc were mapped using RS-XRF. Results: MS lesions were visualized using FLAIR and correlated with the absence of zinc by XRF. XRF and SWI showed that in the first MS case, there were large iron deposits proximal to the draining vein of the caudate nucleus as well as iron deposits associated with blood vessels throughout the globus pallidus. Less iron was seen in association with lesions than in the basal ganglia. The presence of larger amounts of iron correlated reasonably well between RS-XRF and SWI. In the second case, the basal ganglia appeared normal and acute perivascular iron deposition was absent. Conclusion: Perivascular iron deposition is seen in some but not all MS cases, giving credence to the use of SWI to assess iron involvement in MS pathology in vivo.

  12. Method for preparing hydrous iron oxide gels and spherules

    DOE Patents [OSTI]

    Collins, Jack L.; Lauf, Robert J.; Anderson, Kimberly K.

    2003-07-29T23:59:59.000Z

    The present invention is directed to methods for preparing hydrous iron oxide spherules, hydrous iron oxide gels such as gel slabs, films, capillary and electrophoresis gels, iron monohydrogen phosphate spherules, hydrous iron oxide spherules having suspendable particles homogeneously embedded within to form composite sorbents and catalysts, iron monohydrogen phosphate spherules having suspendable particles of at least one different sorbent homogeneously embedded within to form a composite sorbent, iron oxide spherules having suspendable particles homogeneously embedded within to form a composite of hydrous iron oxide fiber materials, iron oxide fiber materials, hydrous iron oxide fiber materials having suspendable particles homogeneously embedded within to form a composite, iron oxide fiber materials having suspendable particles homogeneously embedded within to form a composite, dielectric spherules of barium, strontium, and lead ferrites and mixtures thereof, and composite catalytic spherules of barium or strontium ferrite embedded with oxides of Mg, Zn, Pb, Ce and mixtures thereof. These variations of hydrous iron oxide spherules and gel forms prepared by the gel-sphere, internal gelation process offer more useful forms of inorganic ion exchangers, catalysts, getters, dielectrics, and ceramics.

  13. Comparison of gleptoferron iron compound to two commonly used iron supplements for the prevention of baby pig anemia

    E-Print Network [OSTI]

    Homann, Ervin R.

    1985-01-01T23:59:59.000Z

    access to soil, the pigs become anemic if they are denied access to sources of iron other than the sow's milk. Even with the best management systems, supplemental iron is required because the pig is born with limited iron body stores ((50 mg). sow.... 1957. A parenteral hematinic for the control of iron- deficiency anemia in baby pigs. N, Am. Vet. 38:6. London, E. and G. D. Twigg. 1952. (Unpublished). Maner, J. H. , W. G. Pond and R. S. Lowrey. 1959. Effect of method and level of iron...

  14. Slurry Phase Iron Catalysts for Indirect Coal LIquefaction.

    SciTech Connect (OSTI)

    Datye, A.K.

    1997-08-08T23:59:59.000Z

    This report covers the fourth six month period of this three year grant under the University Coal Research program. During this period, we have begun the synthesis of precipitated catalysts using a bench-top spray dryer. The influence of binders on particle strength was also studied using the ultrasonic fragmentation approach to derive particle breaking stress. A similar approach was used to derive particle strength of catalysts obtained from Mr. Robert Gormley at FETC. Over the next six month period, this work will be continued while the catalysts prepared here will be examined by TPR to determine reducibility and the extent of adverse iron-silica interactions. A fundamental study of Fe/silica interactions has been performed using temperature programmed reaction and TEM to provide understanding of how the silica binders influence the activity of Fe catalysts. To understand differences in the reducibility of the iron phase caused by silica, we have set up a temperature programmed reduction facility. TPR in H, as well as in CO was performed of Fe/ SiO, catalysts prepared by impregnation as well as by precipitation. What is unique about these studies is that high resolution TEM was performed on samples removed from the reactor at various stages of reduction. This helps provide direct evidence for the phase changes that are detected by TPR. We have continued the analysis of catalysts received from slurry reactor runs at Texas A&M university (TAMU) and the University of Kentucky Center for Applied Energy Research (CAER) by x-ray diffraction. The purpose of the XRD analysis was to determine the phase composition of catalysts derived from a slurry reaction run using Fe Fischer-Tropsch catalysts. We had previously described how catalyst removed in the hot wax may oxidize to magnetite if the wax is air-exposed. We have now received catalysts from CAER that were removed under a protective inert blanket, and we are in the process of analyzing them, but preliminary work presented here shows very little oxide by XRD. However, the catalyst that was used in these runs at CAER was a different composition than that used in previous runs, so the protective effect of an inert blanket will need further study. Finally, we point out how the interference by the wax can make it difficult in some cases to analyze the phases in a Fe catalyst. Several approaches have been used to remove the interference from the wax and we come to the surprising conclusion that Fe may be present in a working slurry reactor despite the high CO/ H{sub 2} ratio. Further work is underway to corroborate this finding.

  15. PHASE II CALDERON PROCESS TO PRODUCE DIRECT REDUCED IRON RESEARCH AND DEVELOPMENT PROJECT

    SciTech Connect (OSTI)

    Albert Calderon

    2005-10-14T23:59:59.000Z

    The commercialization path of the Calderon technology for making a feedstock for steelmaking with assistance from DOE initially focused on making coke and work was done which proved that the Calderon technology is capable of making good coke for hard driving blast furnaces. U.S. Steel which participated in such demonstration felt that the Calderon technology would be more meaningful in lowering the costs of making steel by adapting it to the making of iron--thus obviating the need for coke. U.S. Steel and Calderon teamed up to jointly work together to demonstrate that the Calderon technology will produce in a closed system iron units from iron concentrate (ore) and coal competitively by eliminating pelletizing, sintering, coking and blast furnace operation. If such process steps could be eliminated, a huge reduction in polluting emissions and greenhouse gases (including CO{sub 2}) relating to steelmaking would ensue. Such reduction will restructure the steel industry away from the very energy-intensive steelmaking steps currently practiced and drastically reduce costs of making steel. The development of a technology to lower U.S. steelmaking costs and become globally competitive is a priority of major importance. Therefore, the development work which Calderon is conducting presently under this Agreement with the U.S. Department of Energy becomes more crucial than ever. During the 3rd quarter of 2005 which the present report covers, virtually all the effort to advance the Calderon technology to make iron units was concentrated towards forming a team with a steelmaker who needs both iron units in the form of hot metal and a substitute for natural gas (SNG), both being major contributors to higher costs in steelmaking. Calderon felt that a very good candidate would be Steel Dynamics (SDI) by virtue that it operates a rotary hearth facility in Butler, Indiana that uses large amounts of natural gas to reduce briquettes made from ore and coal that they subsequently melt in a submerged arc furnace that is a large consumer of electric power. This facility is operated as a division of SDI under the name of Iron Dynamics (IDI). It is no secret that IDI has had and still has a great number of operational problems, including high cost for natural gas.

  16. Multiple-shocks induced nanocrystallization in iron

    SciTech Connect (OSTI)

    Matsuda, Tomoki; Hirose, Akio [Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan); Sano, Tomokazu [Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan); JST, CREST, Suita, Osaka 565-0871 (Japan); Arakawa, Kazuto [JST, CREST, Suita, Osaka 565-0871 (Japan); Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University, Matsue, Shimane 690-8504 (Japan)

    2014-07-14T23:59:59.000Z

    We found that multiple shots of femtosecond laser-driven shock pulses changed coarse crystalline iron grains with a size of 140??m into nanocrystals with a high density of dislocations, which had never been observed in conventional shock processes. We performed metallurgical microstructure observations using transmission electron microscopy (TEM) and hardness measurements using nanoindentation on cross-sections of shocked iron. TEM images showed that grains with sizes from 10?nm through 1??m exist within 2??m of the surface, where the dislocation density reached 2??10{sup 15?}m{sup ?2}. Results of the hardness measurements showed a significant increase in hardness in the nanocrystallized region. We suggest that the formation of a high density of dislocations, which is produced by a single shock, induces local three-dimensional pile-up by the multiple-shocks, which causes grain refinement at the nanoscale.

  17. Iron-sulfide redox flow batteries

    DOE Patents [OSTI]

    Xia, Guan-Guang; Yang, Zhenguo; Li, Liyu; Kim, Soowhan; Liu, Jun; Graff, Gordon L

    2013-12-17T23:59:59.000Z

    Iron-sulfide redox flow battery (RFB) systems can be advantageous for energy storage, particularly when the electrolytes have pH values greater than 6. Such systems can exhibit excellent energy conversion efficiency and stability and can utilize low-cost materials that are relatively safer and more environmentally friendly. One example of an iron-sulfide RFB is characterized by a positive electrolyte that comprises Fe(III) and/or Fe(II) in a positive electrolyte supporting solution, a negative electrolyte that comprises S.sup.2- and/or S in a negative electrolyte supporting solution, and a membrane, or a separator, that separates the positive electrolyte and electrode from the negative electrolyte and electrode.

  18. Seal welded cast iron nuclear waste container

    DOE Patents [OSTI]

    Filippi, Arthur M. (Pittsburgh, PA); Sprecace, Richard P. (Murrysville, PA)

    1987-01-01T23:59:59.000Z

    This invention identifies methods and articles designed to circumvent metallurgical problems associated with hermetically closing an all cast iron nuclear waste package by welding. It involves welding nickel-carbon alloy inserts which are bonded to the mating plug and main body components of the package. The welding inserts might be bonded in place during casting of the package components. When the waste package closure weld is made, the most severe thermal effects of the process are restricted to the nickel-carbon insert material which is far better able to accommodate them than is cast iron. Use of nickel-carbon weld inserts should eliminate any need for pre-weld and post-weld heat treatments which are a problem to apply to nuclear waste packages. Although the waste package closure weld approach described results in a dissimilar metal combination, the relative surface area of nickel-to-iron, their electrochemical relationship, and the presence of graphite in both materials will act to prevent any galvanic corrosion problem.

  19. Team work: Construction

    E-Print Network [OSTI]

    Berdichevsky, Victor

    Team work: Construction Management The Division of Engineering Technology in an construction technology area, an associate degree in construction science, or college- level course work equivalent to an associate degree in construction related area

  20. Work with Biological Materials

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

    Work with Biological Materials Print Planning A complete Experiment Safety Sheet (ESS) is required before work can be done at the ALS. This ESS is either a part of the proposal...

  1. Interagency Sustainability Working Group

    Broader source: Energy.gov [DOE]

    The Interagency Sustainability Working Group (ISWG) is the coordinating body for sustainable buildings in the federal government.

  2. Melter Throughput Enhancements for High-Iron HLW

    SciTech Connect (OSTI)

    Kruger, A. A. [Department of Energy, Office of River Protection, Richland, Washington (United States); Gan, Hoa [The Catholic University of America, Washington, DC (United States); Joseph, Innocent [The Catholic University of America, Washington, DC (United States); Pegg, Ian L. [The Catholic University of America, Washington, DC (United States); Matlack, Keith S. [The Catholic University of America, Washington, DC (United States); Chaudhuri, Malabika [The Catholic University of America, Washington, DC (United States); Kot, Wing [The Catholic University of America, Washington, DC (United States)

    2012-12-26T23:59:59.000Z

    This report describes work performed to develop and test new glass and feed formulations in order to increase glass melting rates in high waste loading glass formulations for HLW with high concentrations of iron. Testing was designed to identify glass and melter feed formulations that optimize waste loading and waste processing rate while meeting all processing and product quality requirements. The work included preparation and characterization of crucible melts to assess melt rate using a vertical gradient furnace system and to develop new formulations with enhanced melt rate. Testing evaluated the effects of waste loading on glass properties and the maximum waste loading that can be achieved. The results from crucible-scale testing supported subsequent DuraMelter 100 (DM100) tests designed to examine the effects of enhanced glass and feed formulations on waste processing rate and product quality. The DM100 was selected as the platform for these tests due to its extensive previous use in processing rate determination for various HLW streams and glass compositions.

  3. Work & Life at Shanghai | GE Global Research

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork & Life at RioWork

  4. Working With Us | Y-12 National Security Complex

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWorkBusiness1:Working

  5. Iron phosphate compositions for containment of hazardous metal waste

    DOE Patents [OSTI]

    Day, D.E.

    1998-05-12T23:59:59.000Z

    An improved iron phosphate waste form for the vitrification, containment and long-term disposition of hazardous metal waste such as radioactive nuclear waste is provided. The waste form comprises a rigid iron phosphate matrix resulting from the cooling of a melt formed by heating a batch mixture comprising the metal waste and a matrix-forming component. The waste form comprises from about 30 to about 70 weight percent P{sub 2}O{sub 5} and from about 25 to about 50 weight percent iron oxide and has metals present in the metal waste chemically dissolved therein. The concentration of iron oxide in the waste form along with a high proportion of the iron in the waste form being present as Fe{sup 3+} provide a waste form exhibiting improved chemical resistance to corrosive attack. A method for preparing the improved iron phosphate waste forms is also provided. 21 figs.

  6. Iron phosphate compositions for containment of hazardous metal waste

    DOE Patents [OSTI]

    Day, Delbert E. (Rolla, MO)

    1998-01-01T23:59:59.000Z

    An improved iron phosphate waste form for the vitrification, containment and long-term disposition of hazardous metal waste such as radioactive nuclear waste is provided. The waste form comprises a rigid iron phosphate matrix resulting from the cooling of a melt formed by heating a batch mixture comprising the metal waste and a matrix-forming component. The waste form comprises from about 30 to about 70 weight percent P.sub.2 O.sub.5 and from about 25 to about 50 weight percent iron oxide and has metals present in the metal waste chemically dissolved therein. The concentration of iron oxide in the waste form along with a high proportion of the iron in the waste form being present as Fe.sup.3+ provide a waste form exhibiting improved chemical resistance to corrosive attack. A method for preparing the improved iron phosphate waste forms is also provided.

  7. DOE - Office of Legacy Management -- Rogers Iron Works Co - MO 10

    Office of Legacy Management (LM)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp -K Le Blond Machine0-03

  8. Remediation progress at the Iron Mountain Mine Superfund site, California. Information Circular/1991

    SciTech Connect (OSTI)

    Biggs, F.R.

    1991-01-01T23:59:59.000Z

    The report was prepared by the U.S. Bureau of Mines to present a brief history of the listing of Iron Mountain Mine as a Superfund site on the National Priorities List (NPL) and subsequent remedial actions. The mine area is located on 4,400 acres near Redding, CA, and includes underground workings, an open pit area, waste rock dumps, and tailings piles. The property involves multiple sources of acid mine drainage (AMD) that are high in copper, zinc, and cadmium. The selected remedial actions, based on the Record of Decision of 1986, would partially cap the richmond mineralized zone to reduce infiltration of clean water, divert clean surface waters away from contaminated areas, fill surface subsidence areas, and enlarge the Spring Creek debris dam to provide increased surge capacity. Site remediation efforts at Iron Mountain are well into the remedial design-remedial action phase. Details of activities and designs of remedial elements are presented, and future activities, discussed.

  9. Iron Networks Microsoft Fast Track Architecture Reference Architecture Technical White Paper

    E-Print Network [OSTI]

    Chaudhuri, Surajit

    Iron Networks Microsoft Fast Track Architecture Reference Architecture Technical White Paper Iron://www.ironnetworks.com #12;Iron Networks IronPOD Fast Track Hyper-V Private Cloud - 2 Copyright2014 Iron-V Private Cloud - 3 Contents 1 Introduction

  10. Hepcidin Is Involved in Iron Regulation in the Ischemic Brain

    E-Print Network [OSTI]

    Ding, Hui; Yan, Cai-Zhen; Shi, Honglian; Zhao, Ya-Shuo; Chang, Shi-Yang; Yu, Peng; Wu, Wen_Shuang; Zhao, Chen-Yang; Chang, Yan-Zhong; Duan, Xiang-Lin

    2011-09-21T23:59:59.000Z

    : #2; 2011 Ding et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source... an important role in the management of iron metabolism. Accumulated evidence suggests that the transferrin transferrin receptor (TfTfR) pathway might be the major route of iron transport across the luminal membrane of the capillary endothelium and iron uptake...

  11. Reduction and carburization reactions in the iron bath smelter

    SciTech Connect (OSTI)

    Uemura, Kenichiro

    1993-01-01T23:59:59.000Z

    Slag-metal-coal reactions in the iron-bath smelter were analyzed based on a reaction model. It was concluded that the productivity and carbon content of the hot metal produced in a smelter can be controlled by adjusting the slag volume and iron oxide content in slag. Furthermore, iron oxide content is determined by the slag volume and the stirring intensity of the slag.

  12. Iron acquisition and utilization by Rhodococcus equi: potential virulence factors

    E-Print Network [OSTI]

    Carnes, Misty Lee

    2002-01-01T23:59:59.000Z

    . . . . . . . . . . . . . . . . Growth of R. equi in minimal media (MM) and MM without iron 66 (MM-Fe) . . 67 12 13 Growth of R. equi in 100 ItM DIP + varying iron concentrations. . . . . . . . . 68 Effects of iron source (FeSO& or FeCls) onin vitro growth of R. equi. . . 69.... , virulence factors) against oxidative stress Three types of bacterial SODs have been described: those that contain either iron (Fe SOD), manganese (MnSOD), or copper-zinc (Cu-ZnSOD)(85). If the appropriate minerals are not available for production of SODs...

  13. Australian Mining carries rare-earth-like iron release | The...

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

    Australian Mining carries rare-earth-like iron release Australian Mining, the leading news source for the mining industry in Australia, carried a story on research Ames Lab...

  14. Influence of Iron Redox Transformations on Plutonium Sorption...

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

    and Pu(V) reduction demonstrates the potential impact of changing iron mineralogy on plutonium subsurface transport through redox transition areas. These findings...

  15. Zero Valent Iron: Impact of Anions Present during Synthesis on...

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

    iron nanoparticles was quantified by monitoring the kinetics as well as products of carbon tetrachloride reduction, and significant differences in reactivity and chloroform...

  16. Microstructural Modification of a Cast Iron by Magnetic Field Processing

    SciTech Connect (OSTI)

    Kenik, Edward A [ORNL; Ludtka, Gail Mackiewicz- [ORNL; Ludtka, Gerard Michael [ORNL; Wilgen, John B [ORNL; Kisner, Roger A [ORNL

    2010-01-01T23:59:59.000Z

    The current study deals with the microstructural modification of a nodular cast iron during solidification under the influence of high magnetic fields (up to 18 tesla).

  17. Mineral Precipitation Upgradient from a Zero-Valent Iron Permeable...

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

    Abstract: Core samples taken from a zero-valent iron permeable reactive barrier (ZVI PRB) at Cornhusker Army Ammunition Plant, Nebraska, were analyzed for physical and chemical...

  18. Demonstration of Combined Zero-Valent Iron and Electrical Resistance...

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

    and M Oostrom.2011."Demonstration of Combined Zero-Valent Iron and Electrical Resistance Heating for In Situ Trichloroethene Remediation."Environmental Science & Technology...

  19. Percolation Explains How Earth's Iron Core Formed | Stanford...

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

    history. Earth's present layered structure with a metallic core and an overlying silicate mantle would have required mechanisms to separate iron alloy from a silicate phase....

  20. The Fate of Bioavailable Iron in Antarctic Coastal Seas | Advanced...

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

    of iron mirrors the distribution of silicon. Science is exploring many options for carbon dioxide sequestration in order to mitigate the climatological impact of CO2. One of...

  1. approved iron nanoparticles: Topics by E-print Network

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

    thickness on magnetic interactions in self-assembled single domain iron nanoparticles Materials Science Websites Summary: of Mechanical and Chemical Engineering, North Carolina...

  2. Argonne scientists discover new magnetic phase in iron-based...

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

    neutron diffraction image giving evidence for the new magnetic phase in iron-based superconductors discovered by Argonne scientists. It shows the scattering results from a sample...

  3. Metal regeneration of iron chelates in nitric oxide scrubbing

    DOE Patents [OSTI]

    Chang, Shih-Ger (El Cerrito, CA); Littlejohn, David (Oakland, CA); Shi, Yao (Berkeley, CA)

    1997-08-19T23:59:59.000Z

    The present invention relates to a process of using metal particles to reduce NO to NH.sub.3. More specifically, the invention concerns an improved process to regenerate iron (II) (CHELATE) by reduction of iron (II) (CHELATE) (NO) complex, which process comprises: a) contacting an aqueous solution containing iron (II) (CHELATE) (NO) with metal particles at between about 20.degree. and 90.degree. C. to reduce NO present, produce ammonia or an ammonium ion, and produce free iron (II) (CHELATE) at a pH of between about 3 and 8. The process is useful to remove NO from flue gas and reduce pollution.

  4. Metal regeneration of iron chelates in nitric oxide scrubbing

    DOE Patents [OSTI]

    Chang, S.G.; Littlejohn, D.; Shi, Y.

    1997-08-19T23:59:59.000Z

    The present invention relates to a process of using metal particles to reduce NO to NH{sub 3}. More specifically, the invention concerns an improved process to regenerate iron (II) (CHELATE) by reduction of iron (II) (CHELATE) (NO) complex, which process comprises: (a) contacting an aqueous solution containing iron (II) (CHELATE) (NO) with metal particles at between about 20 and 90 C to reduce NO present, produce ammonia or an ammonium ion, and produce free iron (II) (CHELATE) at a pH of between about 3 and 8. The process is useful to remove NO from flue gas and reduce pollution. 34 figs.

  5. Iron Speciation and Mixing in Single Aerosol Particles from the...

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

    iron from atmospheric aerosol is an essential nutrient that can control oceanic productivity, thereby impacting the global carbon budget and climate. Particles collected on...

  6. Beyond iron: non-classical biological functions of bacterial siderophores

    E-Print Network [OSTI]

    Nolan, Elizabeth M.

    Bacteria secrete small molecules known as siderophores to acquire iron from their surroundings. For over 60 years, investigations into the bioinorganic chemistry of these molecules, including fundamental coordination ...

  7. Climate VISION: Private Sector Initiatives: Iron and Steel: Resources...

    Office of Scientific and Technical Information (OSTI)

    Publications The Industrial Technologies Program offers a wide array of publications, videos, software, and other information products for improving energy efficiency in the iron...

  8. The effects of copper and iron deficiencies in the chick

    E-Print Network [OSTI]

    McGhee, Flin Cameron

    1964-01-01T23:59:59.000Z

    was assimilated by the chick. Cunningham (1931) and Josephs (1932) found that rats fed a milk diet plus iron showed no significant difference from rats fed milk plus sources of copper and iron. Elvehjem and Sherman (1932) reported that when rats de- ficient.../or iron as follows: Group Group Group Group Group Group 1 ? no added copper or iron 2 - cupric sulfate added (5 ppm) 3 - cupric oxide added (5 ppm) 4 ? ferrous sulfate added (40 ppm) 5 - cupric sulfate (5 ppm) plus ferrous sulfate added (40 ppm...

  9. Formation of iron complexs from trifluoroacetic acid based liquid...

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

    Instead these ions are clusters of trifluoroacetic acid formed in association with acetonitrile, water and iron from the stainless steel union used to connect the column with the...

  10. Iron is the Key to Preserving Dinosaur Soft Tissue

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation Peer Review 2012IowaFebruaryIronIronIronIron

  11. Next Generation Metallic Iron Nodule Technology in Electric Arc Steelmaking - Phase II

    SciTech Connect (OSTI)

    Donald R. Fosnacht; Iwao Iwasaki; Richard F. Kiesel; David J. Englund; David W. Hendrickson; Rodney L. Bleifuss

    2010-12-22T23:59:59.000Z

    The current trend in the steel industry is a gradual decline in conventional steelmaking from taconite pellets in blast furnaces, and an increasing number of alternative processes using metallic scrap iron, pig iron and metallized iron ore products. Currently, iron ores from Minnesota and Michigan are pelletized and shipped to the lower Great Lakes ports as blast furnace feed. The existing transportation system and infrastructure is geared to handling these bulk materials. In order to expand the opportunities for the existing iron ore mines beyond their blast furnace customer base, a new material is needed to satisfy the needs of the emerging steel industry while utilizing the existing infrastructure and materials handling. A recent commercial installation employing Kobe Steels ITmk3 process, was installed in Northeastern Minnesota. The basic process uses a moving hearth furnace to directly reduce iron oxides to metallic iron from a mixture of iron ore, coals and additives. The resulting products can be shipped using the existing infrastructure for use in various steelmaking processes. The technology reportedly saves energy by 30% over the current integrated steelmaking process and reduces emissions by more than 40%. A similar large-scale pilot plant campaign is also currently in progress using JFE Steels Hi-QIP process in Japan. The objective of this proposal is to build upon and improve the technology demonstrated by Kobe Steel and JFE, by further reducing cost, improving quality and creating added incentive for commercial development. This project expands previous research conducted at the University of Minnesota Duluths Natural Resources Research Institute and that reported by Kobe and JFE Steel. Three major issues have been identified and are addressed in this project for producing high-quality nodular reduced iron (NRI) at low cost: (1) reduce the processing temperature, (2) control the furnace gas atmosphere over the NRI, and (3) effectively use sub-bituminous coal as a reductant. From over 4000 laboratory tube and box furnace tests, it was established that the correct combination of additives, fluxes, and reductant while controlling the concentration of CO and CO2 in the furnace atmosphere (a) lowers the operating temperature, (b) decreases the use of reductant coal (c) generates less micro nodules of iron, and (d) promotes desulphurization. The laboratory scale work was subsequently verified on 12.2 m (40 ft) long pilot scale furnace. High quality NRI could be produced on a routine basis using the pilot furnace facility with energy provided from oxy-gas or oxy-coal burner technologies. Specific strategies were developed to allow the use of sub-bituminous coals both as a hearth material and as part of the reaction mixture. Computational Fluid Dynamics (CFD) modeling was used to study the overall carbothermic reduction and smelting process. The movement of the furnace gas on a pilot hearth furnace and larger simulated furnaces and various means of controlling the gas atmosphere were evaluated. Various atmosphere control methods were identified and tested during the course of the investigation. Based on the results, the appropriate modifications to the furnace were made and tested at the pilot scale. A series of reduction and smelting tests were conducted to verify the utility of the processing conditions. During this phase, the overall energy use characteristics, raw materials, alternative fuels, and the overall economics predicted for full scale implementation were analyzed. The results indicate that it should be possible to lower reaction temperatures while simultaneously producing low sulfur, high carbon NRI if the right mix chemistry and atmosphere are employed. Recommendations for moving the technology to the next stage of commercialization are presented.

  12. Work Area Policy

    E-Print Network [OSTI]

    2005-04-19T23:59:59.000Z

    POLICY X.X.X. Volume V, Information Technology. Chapter 6, Acceptable Safety Work Locations. Issuing Office: Department of Mathematics. Responsible...

  13. INL @ work: Archaeologist

    SciTech Connect (OSTI)

    Lowrey, Dino

    2008-01-01T23:59:59.000Z

    INL @ work features jobs performed at the lab. For more information about INL careers, visit http://www.facebook.com/idahonationallaboratory.

  14. Job or Work Formulas

    E-Print Network [OSTI]

    Bailey, Charlotte M

    2014-09-16T23:59:59.000Z

    Job or Work Problems. (Needed equations or formulas). Worker's rate = 1 total time alone. Examples: Joe completes a job in 11 hours; his rate is job/hour.

  15. INL @ work: Archaeologist

    ScienceCinema (OSTI)

    Lowrey, Dino

    2013-05-28T23:59:59.000Z

    INL @ work features jobs performed at the lab. For more information about INL careers, visit http://www.facebook.com/idahonationallaboratory.

  16. Suspension Hydrogen Reduction of Iron Oxide Concentrates

    SciTech Connect (OSTI)

    H.Y. Sohn

    2008-03-31T23:59:59.000Z

    The objective of the project is to develop a new ironmaking technology based on hydrogen and fine iron oxide concentrates in a suspension reduction process. The ultimate objective of the new technology is to replace the blast furnace and to drastically reduce CO2 emissions in the steel industry. The goals of this phase of development are; the performance of detailed material and energy balances, thermochemical and equilibrium calculations for sulfur and phosphorus impurities, the determination of the complete kinetics of hydrogen reduction and bench-scale testing of the suspension reduction process using a large laboratory flash reactor.

  17. Carbon Emissions: Iron and Steel Industry

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion2,128 2,469 2,321Spain (Million Cubic Feet)Iron and Steel

  18. Iron Availability in the Southern Ocean

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes | NationalCurriculum IntroductionInvestor14,566 SiteIron

  19. Kumba Iron Ore | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation, search GEOTHERMALTexas:Kuju Kanko Hotel GeothermalKumba Iron Ore

  20. Iron Availability in the Southern Ocean

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation Peer Review 2012IowaFebruary 9,JanuaryIron

  1. Iron Availability in the Southern Ocean

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation Peer Review 2012IowaFebruaryIron Availability

  2. Iron Availability in the Southern Ocean

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation Peer Review 2012IowaFebruaryIron

  3. Final Report: The Impact of Carbonate on Surface Protonation, Electron Transfer and Crystallization Reactions in Iron Oxide Nanoparticles and Colloids

    SciTech Connect (OSTI)

    Dixon, David Adams [The University of Alabama

    2013-07-02T23:59:59.000Z

    This project addresses key issues of importance in the geochemical behavior of iron oxides and in the geochemical cycling of carbon and iron. For Fe, we are specifically studying the influence of carbonate on electron transfer reactions, solid phase transformations, and the binding of carbonate to reactive sites on the edges of particles. The emphasis on carbonate arises because it is widely present in the natural environment, is known to bind strongly to oxide surfaces, is reactive on the time scales of interest, and has a speciation driven by acid-base reactions. The geochemical behavior of carbonate strongly influences global climate change and CO{sub 2} sequestration technologies. Our goal is to answer key questions with regards to specific site binding, electron transfer reactions, and crystallization reactions of iron oxides that impact both the geochemical cycling of iron and CO{sub 2} species. Our work is focused on the molecular level description of carbonate chemistry in solution including the prediction of isotope fractionation factors. We have also done work on critical atmospheric species.

  4. Arsenic remediation of drinking water using iron-oxide coated coal bottom ash

    E-Print Network [OSTI]

    MATHIEU, JOHANNA L.

    2010-01-01T23:59:59.000Z

    using Iron-oxide Coated Coal Ash. In Arsenic Contaminationwaterusing iron?oxidecoatedcoalbottomash JohannaL. using iron-oxide coated coal bottom ash JOHANNA L. MATHIEU

  5. Public good dynamics drive evolution of iron acquisition strategies in natural bacterioplankton populations

    E-Print Network [OSTI]

    Cordero, Otto X.

    A common strategy among microbes living in iron-limited environments is the secretion of siderophores, which can bind poorly soluble iron and make it available to cells via active transport mechanisms. Such siderophoreiron ...

  6. THE EFFECT OF SMECTITE ON THE CORROSION OF IRON METAL. | EMSL

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

    THE EFFECT OF SMECTITE ON THE CORROSION OF IRON METAL. THE EFFECT OF SMECTITE ON THE CORROSION OF IRON METAL. Abstract: The combination of zero-valent iron and a clay-type...

  7. Electrically insulating phosphate coatings for iron powder based electromagnetic core applications

    E-Print Network [OSTI]

    Nolan, William Rane

    2009-01-01T23:59:59.000Z

    Powdered metals, such as iron, are a common building block for electromagnetic cores. An iron powder was reacted with phosphoric acid to create a layer of iron phosphate on each particle. This electrically insulating ...

  8. Moessbauer studies of iron hydride at high pressure

    SciTech Connect (OSTI)

    Choe, I.; Ingalls, R. (Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (USA)); Brown, J.M.; Sato-Sorensen, Y. (Geophysics Program, AK-50, University of Washington, Seattle, Washington 98195 (USA)); Mills, R. (Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (USA))

    1991-07-01T23:59:59.000Z

    We have measured {ital in} {ital situ} Moessbauer spectra of iron hydride made in a diamond anvil cell at high pressure and room temperature. The spectra show a sudden change at 3.5{plus minus}0.5 GPa from a single hyperfine pattern to a superposition of three. The former pattern results from normal {alpha}-iron with negligible hydrogen content, and the latter from residual {alpha}-iron plus newly formed iron hydride. Between 3.5 and 10.4 GPa, the extra hydride pattern have hyperfine fields for one ranging from 276 to 263 kOe, and the other, from 317 to 309 kOe. Both have isomer shifts of about 0.4 mm/sec, and negligible quadrupole splittings. X-ray studies on quenched samples have shown that iron hydride is of double hexagonal close-packed structure, whose two nonequivalent iron sites may account for the observation of two different patterns. Even allowing for the effect of volume expansion, the observed isomer shifts for the hydride are considerably more positive than those of other metallic phases of iron. At the same time, the hyperfine fields are slightly smaller than that of {alpha}-iron. As a possible explanation, one may expect a bonding of hydrogen with iron, which would result in a small reduction of 4{ital s} electrons, possibly accompanied by a small increase of 3{ital d} electrons compared with the neutral atom in metallic iron. The difference between the hyperfine fields in the two spectra are presumably due to the different symmetry at the two iron sites.

  9. Work Authorization System

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1999-04-20T23:59:59.000Z

    It establishes a work authorization and control process for work performed by designated management and operating (M&O), management and integrating (M&I), environmental restoration management contracts (ERMC) and other contracts determined by the Procurement Executive (hereafter referred to as M&O contractors). Cancels DOE O 5700.7C. Canceled by DOE O 412.1A.

  10. WORKPLACE GUIDES GLOBAL WORKING

    E-Print Network [OSTI]

    Roelleke, Thomas

    of Stonewall good practice publications profiles some of the employers paving the way for gay staff to work do arise. This guide provides clear, practical tips on how gay employees can access internationalWORKPLACE GUIDES GLOBAL WORKING Supporting lesbian, gay and bisexual staff on overseas assignments

  11. Work Authorization System

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2005-04-21T23:59:59.000Z

    To establish a work authorization and control process for work performed by designated site and facility management contractors, and other contractors as determined by the procurement executive, consistent with the budget execution and program evaluation requirements of the Department of Energy's (DOE's) Planning, Programming, Budgeting, and Evaluation process. Cancels DOE O 412.1.

  12. Work Authorization System

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2005-04-21T23:59:59.000Z

    To establish a work authorization and control process for work performed by designated site and facility management contractors, and other contractors as determined by the procurement executive, consistent with the budget execution and program evaluation requirements of the Department of Energy's Planning, Programming, Budgeting, and Evaluation process. Admin Chg 1, dated 5-21-2014, cancels DOE O 412.1A.

  13. Physical Environments for Digital Libraries: Supporting In-Situ Collaborative Work and

    E-Print Network [OSTI]

    Francisco-Revilla, Luis

    Physical Environments for Digital Libraries: Supporting In-Situ Collaborative Work and Large Format@ischool.utexas.edu ABSTRACT Digital libraries build on a long history of interdisciplinary research combing the fields of libraries and digital technologies. Ironically, many digital libraries today are still narrowly focused

  14. neutron scattering shows magnetic excitation mechanism at work in new materials.

    E-Print Network [OSTI]

    neutron scattering shows magnetic excitation mechanism at work in new materials. In 2008 dai of orNl and the university of tennes- see led early neutron scattering studies of the pnictides. dai ticks off four main things neutron scattering has revealed about superconducting iron com- pounds

  15. Investigation of Iron Aluminide Weld Overlays

    SciTech Connect (OSTI)

    Banovic, S.W.; DuPont, J.B.; Levin, B.F.; Marder, A.R.

    1999-08-02T23:59:59.000Z

    Conventional fossil fired boilers have been retrofitted with low NO(sub)x burners in order for the power plants to comply with new clean air regulations. Due to the operating characteristics of these burners, boiler tube sulfidation corrosion typically has been enhanced resulting in premature tube failure. To protect the existing panels from accelerated attack, weld overlay coatings are typically being applied. By depositing an alloy that offers better corrosion resistance than the underlying tube material, the wastage rates can be reduced. While Ni-based and stainless steel compositions are presently providing protection, they are expensive and susceptible to failure via corrosion-fatigue due to microsegregation upon solidification. Another material system presently under consideration for use as a coating in the oxidation/sulfidation environments is iron-aluminum. These alloys are relatively inexpensive, exhibit little microsegregation, and show excellent corrosion resistance. However, their use is limited due to weldability issues and their lack of corrosion characterization in simulated low NO(sub)x gas compositions. Therefore a program was initiated in 1996 to evaluate the use of iron-aluminum weld overlay coatings for erosion/corrosion protection of boiler tubes in fossil fired boilers with low NO(sub)x burners. Investigated properties included weldability, corrosion behavior, erosion resistance, and erosion-corrosion performance.

  16. Complement receptor type 2conjugated superparamagnetic iron oxide nanoparticles

    E-Print Network [OSTI]

    Levin, Judith G.

    Complement receptor type 2conjugated superparamagnetic iron oxide nanoparticles [CR2-Fc-SPIO] Kam: Complement receptor type 2conjugated gold/superparamagnetic iron oxide nanoparticles Abbreviated name: CR2, and oligodendroglial cells. SPIO nanoparticles are sometimes modified with dextran, poly(ethylene glycol) (PEG

  17. Enhanced Superconducting Properties of Iron Chalcogenide Thin Films

    E-Print Network [OSTI]

    Chen, Li

    2013-07-26T23:59:59.000Z

    Among the newly discovered iron-based superconductor, FeSe with the simplest structure and a transition temperature (T_c) around 8 K arouses much research interest. Although its Tc is much lower than that of the cuprates, iron chalcogenide has low...

  18. atmospheric iron corrosion: Topics by E-print Network

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

    atmospheric iron corrosion First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Atmospheric Iron Deposition:...

  19. Degradation of organic and inorganic contaminants by zero valent iron

    E-Print Network [OSTI]

    Malla, Deepak Babu

    1997-01-01T23:59:59.000Z

    and in combination. All three target contaminants were effectively reduced by both iron (Feo) and palladized iron (Pd/Fe'). However, the rate of reduction by Pd/Fe' was found to be much faster than that by Feo. The reduction of all the contaminants in mixed waste...

  20. Electrodeposition of hybrid organicinorganic films containing iron oxide

    E-Print Network [OSTI]

    Niewczas, Marek

    Electrodeposition of hybrid organicinorganic films containing iron oxide I. Zhitomirsky *, M has been developed for the preparation of hybrid organicinorganic films containing iron oxide properties could be varied. Magnetic measurements revealed that the nanocomposite films are superparamagnetic

  1. MATHEMATICAL MODELING OF THE LITHIUM-ALUMINUM, IRON SULFIDE BATTERY. I. GALVONOSTATIC DISCHARGE BEHAVIOR

    E-Print Network [OSTI]

    Pollard, Richard

    2012-01-01T23:59:59.000Z

    composition profiles in lithium/sulfur battery analogues hasTHE LITHIUM-ALUMINUM, IRON SULFIDE BATTERY. I. GALVONOSTATICthe Lithium-Aluminum, Iron Sulfide Battery I. Galvanostatic

  2. Trophic status of Chlamydomonas reinhardtii influences the impact of iron deficiency on photosynthesis

    E-Print Network [OSTI]

    Terauchi, Aimee M.; Peers, Graham; Kobayashi, Marilyn C.; Niyogi, Krishna K.; Merchant, Sabeeha S.

    2010-01-01T23:59:59.000Z

    of iron de?ciency on photosynthesis Aimee M. Terauchi rates by suppress- ing photosynthesis but increasing insteadal. 2007). In oxygenic photosynthesis, iron is a cofactor in

  3. Using Disorder to Study How Electrons Pair in Iron-Based Superconducto...

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

    Using Disorder to Study How Electrons Pair in Iron-Based Superconductors Researchers introduced disorder to test electron pairing in iron-based superconductors and produced...

  4. System and method for producing metallic iron nodules

    DOE Patents [OSTI]

    Bleifuss, Rodney L. (Grand Rapids, MN); Englund, David J. (Bovey, MN); Iwasaki, Iwao (Grand Rapids, MN); Lindgren, Andrew J. (Grand Rapids, MN); Kiesel, Richard F. (Hibbing, MN)

    2011-09-20T23:59:59.000Z

    A method for producing metallic iron nodules by assembling a shielding entry system to introduce coarse carbonaceous material greater than 6 mesh in to the furnace atmosphere at location(s) where the temperature of the furnace atmosphere adjacent at least partially reduced reducible iron bearing material is between about 2200 and 2650.degree. F. (1200 and 1450.degree. C.), the shielding entry system adapted to inhibit emission of infrared radiation from the furnace atmosphere and seal the furnace atmosphere from exterior atmosphere while introducing coarse carbonaceous material greater than 6 mesh into the furnace to be distributed over the at least partially reduced reducible iron bearing material, and heating the covered at least partially reduced reducible iron bearing material in a fusion atmosphere to assist in fusion and inhibit reoxidation of the reduced material during fusion to assist in fusion and inhibit reoxidation of the reduced material in forming metallic iron nodules.

  5. Testing the Kerr Nature of Black Hole Candidates using Iron Line Spectra in the CPR Framework

    E-Print Network [OSTI]

    Jiang, Jiachen; Steiner, James F

    2015-01-01T23:59:59.000Z

    The iron K$\\alpha$ line commonly observed in the X-ray spectrum of both stellar-mass and supermassive black hole candidates originates from X-ray fluorescence of the inner accretion disk. Accordingly, it can be used to map the spacetime geometry around these objects. In this paper, we extend previous work using the iron K$\\alpha$ line to test the Kerr black hole hypothesis. We adopt the Cardoso-Pani-Rico parametrization and we test the possibility of constraining possible deviations from the Kerr solution that can be obtained from observations across the range of black hole spins and inclination angles. We confirm previous claims that the iron K$\\alpha$ line is potentially a quite powerful probe for testing the Kerr metric given sufficiently high quality data and with systematics under control, especially in the case of fast-rotating black holes and high inclination angles since both conditions serve to maximize relativistic effects. We find that some geometric perturbations from Kerr geometry manifest more s...

  6. Magnetic properties and loss separation in iron-silicone-MnZn ferrite soft magnetic composites

    SciTech Connect (OSTI)

    Wu, Shen; Sun, Aizhi; Xu, Wenhuan; Zou, Chao; Yang, Jun; Dong, Juan [School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing (China)

    2013-12-16T23:59:59.000Z

    This paper investigates the magnetic and structural properties of iron-based soft magnetic composites coated with silicone-MnZn ferrite hybrid. The organic silicone resin was added to improve the flexibility of the insulated iron powder and causes better adhesion between particles to increase the mechanical properties. Scanning electron microscopy and distribution maps show that the iron particle surface is covered with a thin layer of silicone-MnZn ferrite. Silicone-MnZn ferrite coated samples have higher permeability when compared with the non-magnetic silicone resin coated compacts. The real part of permeability increases by 34.18% when compared with the silicone resin coated samples at 20 kHz. In this work, a formula for calculating the total loss component by loss separation method is presented and finally the different parts of total losses are calculated. The results show that the eddy current loss coefficient is close to each other for the silicone-MnZn ferrite, silicone resin and MnZn ferrite coated samples (0.0078

  7. Clean Energy Works (Oregon)

    Broader source: Energy.gov [DOE]

    Clean Energy Works began in 2009 as a pilot program run by the City of Portland. In 2010, the US department of Energy awarded $20 million to create a statewide nonprofit to expand the program...

  8. How Fusion Energy Works

    Broader source: Energy.gov [DOE]

    Fusion energy is the energy source of the sun and all of the stars. As part of How Energy Works, we'll cover everything from fuel sources to plasma physics and beyond.

  9. Fermilab: Science at Work

    ScienceCinema (OSTI)

    Brendan Casey; Herman White; Craig Hogan; Denton Morris; Mary Convery; Bonnie Fleming; Deborah Harris; Dave Schmitz; Brenna Flaugher; Aron Soha

    2013-02-14T23:59:59.000Z

    Six days. Three frontiers. One amazing lab. From 2010 to 2012, a film crew followed a group of scientists at the Department of Energy's Fermilab and filmed them at work and at home. This 40-minute documentary shows the diversity of the people, research and work at Fermilab. Viewers catch a true behind-the-scenes look of the United States' premier particle physics laboratory while scientists explain why their research is important to them and the world.

  10. FeCycle: Attempting an iron biogeochemical budget from a mesoscale SF6 tracer experiment in unperturbed low iron waters

    E-Print Network [OSTI]

    Wilhelm, Steven W.

    FeCycle: Attempting an iron biogeochemical budget from a mesoscale SF6 tracer experiment to ocean physics. In summer 2003 we conducted FeCycle, a 10-day mesoscale tracer release in HNLC waters SE biogeochemical budget from a mesoscale SF6 tracer experiment in unperturbed low iron waters, Global Biogeochem

  11. Selective dissolution of magnetic iron oxides in the acidammonium oxalate/ferrous iron extraction method--I. Synthetic samples

    E-Print Network [OSTI]

    Utrecht, Universiteit

    for specific dissolution of magnetic minerals from soils and sediments. To prevent changes in the extractionSelective dissolution of magnetic iron oxides in the acidammonium oxalate/ferrous iron extraction the pedogenic magnetic fractions. Sequential extraction techniques have therefore been incorporated

  12. Kinetics of dissolution and bio-availability of iron in amorphous siliceous iron oxides

    E-Print Network [OSTI]

    Seaman, John C.

    1990-01-01T23:59:59.000Z

    A&M University Chair of Advisory Committee: Dr. Richard H. Loeppert Amorphous iron (Fe) oxides are of interest because of their high reactivity, surface area, and influence on Fe availability in the soil environment. These materials may have... potential utilization as slow-release Fe amendments for calcareous soils. The objective of this study was to evaluate the impact of various concentrations of silicon (Si), present during precipitation, on the dissolution kinetics of amorphous Fe oxides...

  13. Multiple hearth furnace for reducing iron oxide

    DOE Patents [OSTI]

    Brandon, Mark M. (Charlotte, NC); True, Bradford G. (Charlotte, NC)

    2012-03-13T23:59:59.000Z

    A multiple moving hearth furnace (10) having a furnace housing (11) with at least two moving hearths (20) positioned laterally within the furnace housing, the hearths moving in opposite directions and each moving hearth (20) capable of being charged with at least one layer of iron oxide and carbon bearing material at one end, and being capable of discharging reduced material at the other end. A heat insulating partition (92) is positioned between adjacent moving hearths of at least portions of the conversion zones (13), and is capable of communicating gases between the atmospheres of the conversion zones of adjacent moving hearths. A drying/preheat zone (12), a conversion zone (13), and optionally a cooling zone (15) are sequentially positioned along each moving hearth (30) in the furnace housing (11).

  14. System and method for producing metallic iron

    DOE Patents [OSTI]

    Bleifuss, Rodney L; Englund, David J; Iwasaki, Iwao; Fosnacht, Donald R; Brandon, Mark M; True, Bradford G

    2013-09-17T23:59:59.000Z

    A hearth furnace for producing metallic iron material has a furnace housing having a drying/preheat zone, a conversion zone, a fusion zone, and optionally a cooling zone, the conversion zone is between the drying/preheat zone and the fusion zone. A moving hearth is positioned within the furnace housing. A hood or separation barrier within at least a portion of the conversion zone, fusion zone or both separates the fusion zone into an upper region and a lower region with the lower region adjacent the hearth and the upper region adjacent the lower region and spaced from the hearth. An injector introduces a gaseous reductant into the lower region adjacent the hearth. A combustion region may be formed above the hood or separation barrier.

  15. System and method for producing metallic iron

    DOE Patents [OSTI]

    Bleifuss, Rodney L. (Grand Rapids, MN); Englund, David J. (Bovey, MN); Iwasaki, Iwao (Grand Rapids, MN); Fosnacht, Donald R. (Hermantown, MN); Brandon, Mark M. (Charlotte, NC); True, Bradford G. (Charlotte, NC)

    2012-01-17T23:59:59.000Z

    A hearth furnace 10 for producing metallic iron material has a furnace housing 11 having a drying/preheat zone 12, a conversion zone 13, a fusion zone 14, and optionally a cooling zone 15, the conversion zone 13 is between the drying/preheat zone 12 and the fusion zone 14. A moving hearth 20 is positioned within the furnace housing 11. A hood or separation barrier 30 within at least a portion of the conversion zone 13, fusion zone 14 or both separates the fusion zone 14 into an upper region and a lower region with the lower region adjacent the hearth 20 and the upper region adjacent the lower region and spaced from the hearth 20. An injector introduces a gaseous reductant into the lower region adjacent the hearth 20. A combustion region may be formed above the hood or separation barrier.

  16. Iron and steel industry process model

    SciTech Connect (OSTI)

    Sparrow, F.T.; Pilati, D.; Dougherty, T.; McBreen, E.; Juang, L.L.

    1980-01-01T23:59:59.000Z

    The iron and steel industry process model depicts expected energy-consumption characteristics of the iron and steel industry and ancillary industries for the next 25 years by means of a process model of the major steps in steelmaking, from ore mining and scrap recycling to the final finishing of carbon, alloy, and stainless steel into steel products such as structural steel, slabs, plates, tubes, and bars. Two plant types are modeled: fully integrated mills and mini-mills. User-determined inputs into the model are as follows: projected energy and materials prices; projected costs of capacity expansion and replacement; energy-conserving options, both operating modes and investments; the internal rate of return required on investment; and projected demand for finished steel. Nominal input choices in the model for the inputs listed above are as follows: National Academy of Sciences Committee on Nuclear and Alternative Energy Systems Demand Panel nominal energy-price projections for oil, gas, distillates, residuals, and electricity and 1975 actual prices for materials; actual 1975 costs; new technologies added; 15% after taxes; and 1975 actual demand with 1.5%/y growth. The model reproduces the base-year (1975) actual performance of the industry; then, given the above nominal input choices, it projects modes of operation and capacity expansion that minimize the cost of meeting the given final demands for each of 5 years, each year being the midpoint of a 5-year interval. The output of the model includes the following: total energy use and intensity (Btu/ton) by type, by process, and by time period; energy conservation options chosen; utilization rates for existing capacity; capital-investment decisions for capacity expansion.

  17. Working group report: Neutrino physics

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    Working group report: Neutrino physics Acknowledgements TheWorking group report: Neutrino physics Coordinators: SANDHYAthe report of the neutrino physics working group at WHEPP-X.

  18. Theoretical Investigation of Hydrogen Adsorption and Dissociation on Iron and Iron Carbide Surfaces Using the ReaxFF Reactive Force Field Method

    SciTech Connect (OSTI)

    Zou, Chenyu; van Duin, Adri C.T.; Sorescu, Dan C.

    2012-06-01T23:59:59.000Z

    We have developed a ReaxFF reactive force field to describe hydrogen adsorption and dissociation on iron and iron carbide surfaces relevant for simulation of FischerTropsch (FT) synthesis on iron catalysts. This force field enables large system (>>1000 atoms) simulations of hydrogen related reactions with iron. The ReaxFF force field parameters are trained against a substantial amount of structural and energetic data including the equations of state and heats of formation of iron and iron carbide related materials, as well as hydrogen interaction with iron surfaces and different phases of bulk iron. We have validated the accuracy and applicability of ReaxFF force field by carrying out molecular dynamics simulations of hydrogen adsorption, dissociation and recombination on iron and iron carbide surfaces. The barriers and reaction energies for molecular dissociation on these two types of surfaces have been compared and the effect of subsurface carbon on hydrogen interaction with iron surface is evaluated. We found that existence of carbon atoms at subsurface iron sites tends to increase the hydrogen dissociation energy barrier on the surface, and also makes the corresponding hydrogen dissociative state relatively more stable compared to that on bare iron. These properties of iron carbide will affect the dissociation rate of H{sub 2} and will retain more surface hydride species, thus influencing the dynamics of the FT synthesis process.

  19. FW467-WILDLIFE DISEASE ECOLOGY Fall 2012 Dr. Kate Huyvaert

    E-Print Network [OSTI]

    participate in discussions about papers from the primary literature (details below). Course readings to build a common foundation of key principles and concepts. Readings will come from some of the sources listed below and the primary literature. Papers or chapters listed on the course schedule

  20. De Ingebouwde Informatica Dr. F.W. Vaandrager

    E-Print Network [OSTI]

    Vaandrager, Frits

    snelheidstreinen en met airbags toegeruste personenwagens, over hoe Kurt Cobains gedigitaliseerde stemgeluid zal

  1. AMI FW UPGRADEABILITY TEST PROCEDURE AND SECURITY ASSESSMENT

    SciTech Connect (OSTI)

    Snyder, Isabelle B [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    The National Institute of Standards and Technology (NIST) is producing NISTIR 7823 to define test requirements for Smart Meter upgradability. The term Smart Meter refers specifically to advanced electric meters being deployed to enhance management of electricity distribution for residential and industrial consumers. The underlying functional and security requirements for Smart Meter upgradability are specified in NEMA standard SG-AMI 1-2009. The purpose of NISTIR 7823 is to describe conformance test requirements that may be used voluntarily by testers and/or test laboratories to determine whether Smart Meters and Upgrade Management Systems conform to the requirements of NEMA SG-AMI 1-2009.

  2. ART HISTORY UNDERGRADUATE COURSES FW2014-15

    E-Print Network [OSTI]

    Martin, Jeff

    production. Cross-Listed: Religious Studies REL- 2901(3). Fall 2014, H. Delacretaz, Mondays, 6:00PM - 9:00PM such as the Elgin Marbles at the British Museum, the Egyptian wing at the Louvre, and the collection of Modernist contemporary theories of collecting and display. Some classes will be held in the Winnipeg Art Gallery Fall

  3. WRP Technical Note FW-SW-4. 1 ~-May 1994

    E-Print Network [OSTI]

    and is a common resident at Corps of Engineers reservoir projects. BACKGROUND: Since wood ducks are cavity nesters populations. Such settings include reservoir backwater areas, tributary streams, tailwater areas, subimpoundments, abandoned sand or gravel pits, oxbow lakes, and beaver ponds. Nest box programs have been

  4. abwr fw pump: Topics by E-print Network

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

    Summary: Field application tests have been conducted on three 4 to 6-ton commercial heat pump water heater systems in a restaurant, a coin-operated laundry, and an office building...

  5. From: Nussdorf, Benjamin To: Subject: FW: FLNG Date:

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

    Global Infrastructure Fund will tell people it is an investment fund. (The capital infusion to the project will be generated from the Cayman Island assets of IFM.) Does that...

  6. 550 FW 3 Documenting and Implementing Decisions | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 Windthe Commission |Information EffluentU.S.C.

  7. RUSTY OLD STARS: A SOURCE OF THE MISSING INTERSTELLAR IRON?

    SciTech Connect (OSTI)

    McDonald, I.; Zijlstra, A. A.; Markwick, A. J. [Jodrell Bank Centre for Astrophysics, Alan Turing Building, Manchester, M13 9PL (United Kingdom); Sloan, G. C.; Bernard-Salas, J. [Cornell University, Astronomy Department, Ithaca, NY 14853-6801 (United States); Matsunaga, N. [Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015 (Japan); Matsuura, M. [UCL-Institute of Origins, Astrophysics Group, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom); Kraemer, K. E., E-mail: iain.mcdonald-2@jb.man.ac.u, E-mail: albert.zijlstra@manchester.ac.u, E-mail: andrew.markwick@manchester.ac.u, E-mail: sloan@isc.astro.cornell.ed, E-mail: matsunaga@ioa.s.u-tokyo.ac.j, E-mail: mikako@star.ucl.ac.u [Air Force Research Laboratory, Space Vehicles Directorate, Hanscom AFB, MA 01731 (United States)

    2010-07-10T23:59:59.000Z

    Iron, the universe's most abundant refractory element, is highly depleted in both circumstellar and interstellar environments, meaning it exists in solid form. The nature of this solid is unknown. In this Letter, we provide evidence that metallic iron grains are present around oxygen-rich asymptotic giant branch stars, where it is observationally manifest as a featureless mid-infrared excess. This identification is made using Spitzer Space Telescope observations of evolved globular cluster stars, where iron dust production appears ubiquitous and in some cases can be modeled as the only observed dust product. In this context, FeO is examined as the likely carrier for the 20 {mu}m feature observed in some of these stars. Metallic iron appears to be an important part of the dust condensation sequence at low metallicity, and subsequently plays an influential role in the interstellar medium. We explore the stellar metallicities and luminosities at which iron formation is observed, and how the presence of iron affects the outflow and its chemistry. The conditions under which iron can provide sufficient opacity to drive a wind remain unclear.

  8. Iron/soot interaction in a laminar ethylene nonpremixed flame

    SciTech Connect (OSTI)

    Zhang, J.; Megaridis, C.M. [Univ. of Illinois, Chicago, IL (United States). Dept. of Mechanical Engineering

    1994-12-31T23:59:59.000Z

    A laminar, coannular, ethylene/air nonpremixed flame doped with ferrocene additive is employed to address the fundamental question of how iron becomes incorporated into the carbonaceous soot phase, thus interfering with the soot formation processes. The structure and chemical composition of individual aggregates are characterized with respect to flame coordinates via a combination of thermophoretic sampling, transmission electron microscopy, and energy dispersive spectrometry. Soot aggregate microstructure clearly reveals iron occlusion, as well as stratification of soot layers over the occluded phase. The study provides physical evidence that the soot and iron compounds combine in the flame to form a hybrid (inhomogeneous) particulate phase. The reported observations are consistent with the hypothesis that ferrocene decomposes early in the combustion process and before the onset of soot particle inception, thus forming a fine aerosol for the subsequent deposition of carbonaceous substances. Examination of a series of inhomogeneous soot aggregates shows that the flame aerosol composition varies with flame coordinates. In particular, aggregates transported in the soot annulus near the luminous flame front are primarily composed of carbon and oxygen, with traces of iron finely dispersed through the aggregate matrix. On the other hand, carbonaceous soot transported at low heights and near the flame axis contains iron in its elemental form. Finally, soot aggregates in all other areas of the flame contain both iron and oxygen, thus implying the possible presence of iron oxides within the carbonaceous matrix.

  9. Iron aluminide alloy coatings and joints, and methods of forming

    DOE Patents [OSTI]

    Wright, R.N.; Wright, J.K.; Moore, G.A.

    1994-09-27T23:59:59.000Z

    Disclosed is a method of joining two bodies together, at least one of the bodies being predominantly composed of metal, the two bodies each having a respective joint surface for joining with the joint surface of the other body, the two bodies having a respective melting point, includes the following steps: (a) providing aluminum metal and iron metal on at least one of the joint surfaces of the two bodies; (b) after providing the aluminum metal and iron metal on the one joint surface, positioning the joint surfaces of the two bodies in juxtaposition against one another with the aluminum and iron positioned therebetween; (c) heating the aluminum and iron on the juxtaposed bodies to a temperature from greater than or equal to 600 C to less than the melting point of the lower melting point body; (d) applying pressure on the juxtaposed surfaces; and (e) maintaining the pressure and the temperature for a time period effective to form the aluminum and iron into an iron aluminide alloy joint which bonds the juxtaposed surfaces and correspondingly the two bodies together. The method can also effectively be used to coat a body with an iron aluminide coating.

  10. Spall behavior of cast iron with varying microstructures

    SciTech Connect (OSTI)

    Plume, Gifford; Rousseau, Carl-Ernst, E-mail: rousseau@uri.edu [Mechanical Engineering, University of Rhode Island, 92 Upper College Rd., Kingston, Rhode Island 02881 (United States)

    2014-07-21T23:59:59.000Z

    The spall strength of cast iron with varying microstructures has been investigated using plate impact at moderate speed. Stress history measurements were made with manganin stress gauges embedded between the back face of the specimen and a low impedance polycarbonate backing. Five separate cast irons were tested. Four of these consisted of gray cast iron with graphite in flake form, with three classified as Type VII A2 and the fourth containing a bimodal distribution of Types VII A4 and VII D8. The fifth casting consisted of ductile cast iron with graphite in nodular form, classified as Type I, size class 5. The spall strength for the Type VII A2 gray cast irons varied between 40 and 370?MPa, and that of the additional gray cast iron, between 410 and 490?MPa. The spall strength of the ductile cast iron fell within the range of 0.941.2?GPa. It is shown that the spall strength is linked to the damage level at the spall plane, where an increased level of tensile stress is required to generate higher levels of damage. Post mortem analysis was performed on the recovered samples, revealing the graphite phase to be the primary factor governing the spall fracture of cast irons, where crack nucleation is directly correlated to the debonding of graphite from the metal matrix. The average length of graphite found within a casting is linked to the material's strength, where strength increases as a function of decreasing length. The morphology and mean free path of graphite precipitates further govern the subsequent coalescence of initiated cracks to form a complete fracture plane. In cases where graphite spacing is large, increased energy level is required to complete the fracture process. A secondary factor governing the spall fracture of cast irons has also been linked to the microstructure of the metal matrix, with pearlite yielding higher spall strengths than free ferrite.

  11. Enhanced radiological work planning

    SciTech Connect (OSTI)

    DECKER, W.A.

    1999-05-21T23:59:59.000Z

    The purpose of this standard is to provide Project Hanford Management Contractors (PHMC) with guidance for ensuring radiological considerations are adequately addressed throughout the work planning process. Incorporating radiological controls in the planning process is a requirement of the Hanford Site Radiological Control Manual (HSRCM-I), Chapter 3, Part 1. This standard is applicable to all PHMC contractors and subcontractors. The essential elements of this standard will be incorporated into the appropriate site level work control standard upon implementation of the anticipated revision of the PHMC Administration and Procedure System.

  12. Work breakdown structure guide

    SciTech Connect (OSTI)

    Not Available

    1987-02-06T23:59:59.000Z

    Utilization of the work breakdown structure (WBS) technique is an effective aid in managing Department of Energy (DOE) programs and projects. The technique provides a framework for project management by focusing on the products that are being developed or constructed to solve technical problems. It assists both DOE and contractors in fulfilling their management responsibilities. This document provides guidance for use of the WBS technique for product oriented work identification and definition. It is one in a series of policy and guidance documents supporting DOE's project manaagement system.

  13. Work with Biological Materials

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengtheningWildfires may contribute more to &83 3.3 Table3Work withWork

  14. Iron-carbon compacts and process for making them

    DOE Patents [OSTI]

    Sheinberg, Haskell (Santa Fe, NM)

    2000-01-01T23:59:59.000Z

    The present invention includes iron-carbon compacts and a process for making them. The process includes preparing a slurry comprising iron powder, furfuryl alcohol, and a polymerization catalyst for initiating the polymerization of the furfuryl alcohol into a resin, and heating the slurry to convert the alcohol into the resin. The resulting mixture is pressed into a green body and heated to form the iron-carbon compact. The compact can be used as, or machined into, a magnetic flux concentrator for an induction heating apparatus.

  15. Iron is the Key to Preserving Dinosaur Soft Tissue

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes | NationalCurriculum IntroductionInvestor14,566 SiteIronIronIron

  16. Iron is the Key to Preserving Dinosaur Soft Tissue

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation Peer Review 2012IowaFebruaryIronIronIron

  17. Work & Life at Rio de Janeiro | GE Global Research

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork & Life at Rio de

  18. Work & Life at San Ramon | GE Global Research

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork & Life at Rio

  19. Work Force Discipline - DOE Directives, Delegations, and Requirements

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork & Life at3750.1

  20. Work-Related Injuries and Illnesses | The Ames Laboratory

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWork &ARM STMWork

  1. Working Group Reports A Short-Wave Radiometer Array Across

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWorkBusiness1: Model4:9

  2. Working Group Reports Unmanned Aerospace Vehicle Workshop J. Vitko, Jr.

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWorkBusiness1: Model4:97

  3. Public Works Transportation Infrastructure Study

    E-Print Network [OSTI]

    Minnesota, University of

    Public Works Transportation Infrastructure Study Minneapolis City of Lakes Minneapolis Public Works Transportation Infrastructure Study #12;Public Works Transportation Infrastructure Study Minneapolis City Works Transportation Infrastructure Study Minneapolis City of Lakes Background: · Currently, funding

  4. Nanoscale Chemical Imaging of a Working Catalyst

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

    from electron microscopy to identify the chemical species present for an iron-based Fischer-Tropsch synthesis catalyst and to image their distribution on the nanoscale. When...

  5. WORK PROGRAMME 2009 COOPERATION

    E-Print Network [OSTI]

    Milano-Bicocca, Universit

    _______ 15 SSH-2009 - 4.1.1. Competition and collaboration in access to oil, gas and mineral resourcesWORK PROGRAMME 2009 COOPERATION THEME 8 SOCIO-ECONOMIC SCIENCES AND HUMANITIES (European Commission and the Humanities Page 1 of 38 OBJECTIVE_______________________________________________________________ 3 I CONTEXT

  6. WORK PROGRAMME 2009 COOPERATION

    E-Print Network [OSTI]

    Milano-Bicocca, Universit

    )........................................ 46 Area 2.3.3 Industrial biotechnology: novel high added-value bio-products and bio-processes ..................................................................................................................... 48 Area 2.3.5 Environmental biotechnologyWORK PROGRAMME 2009 COOPERATION THEME 2 FOOD, AGRICULTURE AND FISHERIES, AND BIOTECHNOLOGY

  7. WORK PROGRAMME 2010 COOPERATION

    E-Print Network [OSTI]

    Milano-Bicocca, Universit

    )........................................ 53 Area 2.3.3 Industrial biotechnology: novel high added-value bio-products and bio-processes ..................................................................................................................... 58 Area 2.3.5 Environmental biotechnologyWORK PROGRAMME 2010 COOPERATION THEME 2 FOOD, AGRICULTURE AND FISHERIES, AND BIOTECHNOLOGY

  8. Work Force Discipline

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1983-03-23T23:59:59.000Z

    The order provides guidance and procedures and states responsibilities for maintaining work force discipline in DOE. Chg 1, dated 3-11-85; Chg 2, dated 1-6-86; Chg 3, dated 3-21-89; Chg 4, dated 8-2-90; Chg 5, dated 3-9-92; Chg 6, dated 8-21-92, cancels Chg 5.

  9. Snapshot of iron response in Shewanella oneidensis by gene network reconstruction

    E-Print Network [OSTI]

    Harris, Daniel P.

    2010-01-01T23:59:59.000Z

    dissection of the Helicobacter pylori Fur regulatory circuitregulation of the Helicobacter pylori iron-cofactored

  10. Cast B2-phase iron-aluminum alloys with improved fluidity

    DOE Patents [OSTI]

    Maziasz, Philip J. (122 Clark La., Oak Ridge, TN 37830); Paris, Alan M. (P.O. Box 64, Tarrs, PA 15688); Vought, Joseph D. (124 Cove Point Rd., Rockwood, TN 37854)

    2002-01-01T23:59:59.000Z

    Systems and methods are described for iron aluminum alloys. A composition includes iron, aluminum and manganese. A method includes providing an alloy including iron, aluminum and manganese; and processing the alloy. The systems and methods provide advantages because additions of manganese to iron aluminum alloys dramatically increase the fluidity of the alloys prior to solidification during casting.

  11. Synthesis and characterization of iron-impregnated porous carbon spheres prepared by ultrasonic spray pyrolysis

    E-Print Network [OSTI]

    Suslick, Kenneth S.

    applications for iron nanoparticles include FischerTropsch catalysts, oxygen reduction catalysts in fuel cells

  12. Wintertime pytoplankton bloom in the Subarctic Pacific supported by continental margin iron

    E-Print Network [OSTI]

    Lam, Phoebe J.; Bishop, James K.B.; Henning, Cara C.; Marcus, Matthew A.; Waychunas, Glenn A.; Fung, Inez

    2008-01-01T23:59:59.000Z

    of iron hydroxide (60% goethite) and amorphous irona linear combination of goethite (60%) and ferrihydrite (

  13. Decoupling of iron and phosphate in the global ocean

    E-Print Network [OSTI]

    Parekh, Payal

    2003-01-01T23:59:59.000Z

    Iron (Fe) is an essential micronutrient for marine phytoplankton often limiting phytoplankton growth due to its low concentration in the ocean and thus playing a role in modulating the ocean's biological pump. In order to ...

  14. Verification of Steelmaking Slags Iron Content Final Technical Progress Report

    SciTech Connect (OSTI)

    J.Y. Hwang

    2006-10-04T23:59:59.000Z

    The steel industry in the United States generates about 30 million tons of by-products each year, including 6 million tons of desulfurization and BOF/BOP slag. The recycling of BF (blast furnace) slag has made significant progress in past years with much of the material being utilized as construction aggregate and in cementitious applications. However, the recycling of desulfurization and BOF/BOP slags still faces many technical, economic, and environmental challenges. Previous efforts have focused on in-plant recycling of the by-products, achieving only limited success. As a result, large amounts of by-products of various qualities have been stockpiled at steel mills or disposed into landfills. After more than 50 years of stockpiling and landfilling, available mill site space has diminished and environmental constraints have increased. The prospect of conventionally landfilling of the material is a high cost option, a waste of true national resources, and an eternal material liability issue. The research effort has demonstrated that major inroads have been made in establishing the viability of recycling and reuse of the steelmaking slags. The research identified key components in the slags, developed technologies to separate the iron units and produce marketable products from the separation processes. Three products are generated from the technology developed in this research, including a high grade iron product containing about 90%Fe, a medium grade iron product containing about 60% Fe, and a low grade iron product containing less than 10% Fe. The high grade iron product contains primarily metallic iron and can be marketed as a replacement of pig iron or DRI (Direct Reduced Iron) for steel mills. The medium grade iron product contains both iron oxide and metallic iron and can be utilized as a substitute for the iron ore in the blast furnace. The low grade iron product is rich in calcium, magnesium and iron oxides and silicates. It has a sufficient lime value and can be utilized for acid mine drainage treatment. Economic analysis from this research demonstrates that the results are favorable. The strong demand and the increase of price of the DRI and pig iron in recent years are particularly beneficial to the economics. The favorable economics has brought commercial interests. ICAN Global has obtained license agreement on the technology from Michigan Tech. This right was later transferred to the Westwood Land, Inc. A demonstration pilot plant is under construction to evaluate the technology. Steel industry will benefit from the new supply of the iron units once the commercial plants are constructed. Environmental benefits to the public and the steel industry will be tremendous. Not only the old piles of the slag will be removed, but also the federal responsible abandoned mines from the old mining activities can be remediated with the favorable product generated from the process. Cost can be reduced and there will be no lime required, which can avoid the release of carbon dioxide from lime production process.

  15. Evidence for a Weak Iron Core at Earth's Center

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

    Iron Core at Earth's Center Print Seismic waves that pass through the center of the Earth travel faster going from pole to pole than along the equatorial plane-why? One theory...

  16. Iron Cycling and Redox Evolution in the Precambrian

    E-Print Network [OSTI]

    Planavsky, Noah John

    2012-01-01T23:59:59.000Z

    in a greater enrichment in the lighter Fe isotopes in theIron isotopes provide evidence that Fe enrichment in IF is2003). This enrichment in heavy Fe isotopes contrasts with

  17. In Situ Iron Oxide Emplacement for Groundwater Arsenic Remediation

    E-Print Network [OSTI]

    Abia, Thomas Sunday

    2012-02-14T23:59:59.000Z

    Iron oxide-bearing minerals have long been recognized as an effective reactive media for arsenic-contaminated groundwater remediation. This research aimed to develop a technique that could facilitate in situ oxidative precipitation of Fe3+ in a soil...

  18. Geologic evolution of Iron Mountain, central Mojave Desert, California

    E-Print Network [OSTI]

    Boettcher, Stefan S.; Walker, J. Douglas

    1993-04-01T23:59:59.000Z

    Geologic mapping, structural analysis, petrologic study, and U-Pb geochronology at Iron Mountain, 20 km southwest of Barstow, California, place important constraints on the paleogeographic affinities of metasedimentary ...

  19. Iron limitation and the role of Siderophores in marine Synechococcus

    E-Print Network [OSTI]

    Rivers, Adam R. (Adam Reid)

    2009-01-01T23:59:59.000Z

    Marine cyanobacteria in the genus Synechococcus are widely distributed and contribute significantly to global primary productivity. In many parts of the ocean their growth is limited by a lack of iron, an essential nutrient ...

  20. Method and system for producing metallic iron nuggets

    DOE Patents [OSTI]

    Iwasaki, Iwao; Kiesel, Richard F.; Englund, David J; Hendrickson, Dave

    2012-12-18T23:59:59.000Z

    A method and system for producing metallic iron nuggets may include providing multiple layers of agglomerates, such as briquettes, balls and extrusions, of a reducible mixture of reducing material (such as carbonaceous material) and of a reducible iron bearing material (such as iron oxide) on a hearth material layer (such as carbonaceous material) and providing a coarse overlayer of carbonaceous material over at least some of the agglomerates. Heating the agglomerates of reducible mixture to 1425.degree. C. or 1400.degree. C. or 1375.degree. C. results in formation of an intermediate product of one or more metallic iron nuggets, which may have a sulfur content of less than 0.03%, and slag, which may have less than 5% mass MgO, which may have a ratio of percent by weight sulfur in the slag over percent by weight sulfur in the metallic nuggets of at least about 12 or at least about 15.

  1. Process for removing technetium from iron and other metals

    DOE Patents [OSTI]

    Leitnaker, James M. (Kingston, TN); Trowbridge, Lee D. (Oak Ridge, TN)

    1999-01-01T23:59:59.000Z

    A process for removing technetium from iron and other metals comprises the steps of converting the molten, alloyed technetium to a sulfide dissolved in manganese sulfide, and removing the sulfide from the molten metal as a slag.

  2. Iron and DHA in Relation to Early Cognitive Development

    E-Print Network [OSTI]

    Park, Loran Marie

    2013-05-31T23:59:59.000Z

    Iron and docosahexaenoic acid (DHA) are important nutrients for brain development. Negative effects of DHA supplementation when status of both nutrients is low have been shown on cognitive outcomes. We sought to determine ...

  3. Energy intensity in China's iron and steel sector

    E-Print Network [OSTI]

    Xu, Jingsi, M.C.P. Massachusetts Institute of Technology

    2011-01-01T23:59:59.000Z

    In this study, I examine the spatial and economic factors that influence energy intensity in China's iron and steel sector, namely industrial value added, renovation investment, coke consumption, and local coke supply. ...

  4. anthropogenic iron cycles: Topics by E-print Network

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

    tion in the average odds of each feature occurring within Sandercock, Brett K. 42 Solar Cycle Variations in the Elemental Abundance of Helium and Fractionation of Iron in the...

  5. Surface modifications of iron oxide nanoparticles for biological applications

    E-Print Network [OSTI]

    Insin, Numpon

    2011-01-01T23:59:59.000Z

    Iron oxides magnetic nanoparticles (MPs) of high crystallinity, high magnetization, and size-monodispersity were synthesized with oleic acid as their native ligands. These hydrophobic and non-functionalized MPs have magnetic ...

  6. Iron-oxide catalyzed silicon photoanode for water splitting

    E-Print Network [OSTI]

    Jun, Kimin

    2011-01-01T23:59:59.000Z

    This thesis presents an integrated study of high efficiency photoanodes for water splitting using silicon and iron-oxide. The fundamental limitations of silicon to water splitting applications were overcome by an ultrathin ...

  7. The industrial ecology of the iron casting industry

    E-Print Network [OSTI]

    Jones, Alissa J. (Alissa Jean)

    2007-01-01T23:59:59.000Z

    Metal casting is an energy and materials intensive manufacturing process, which is an important U.S. industry. This study analyzes iron casting, in particular, for possible improvements that will result in greater efficiencies ...

  8. Magnetism and Superconductivity Compete in Iron-based Superconductors...

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

    Magnetism and Superconductivity Compete in Iron-based Superconductors Wednesday, April 30, 2014 HTSC Figure 1 Fig. 1. Measured electronic structure of underdoped Ba1-xKxFe2As2 in...

  9. Modernization of the iron making plant at SOLLAC FOS

    SciTech Connect (OSTI)

    Crayelynghe, M. van; Dufour, A.; Soland, J.; Feret, J.; Lebonvallet, J.

    1995-12-01T23:59:59.000Z

    When the blast furnaces at SOLLAC/FOS were relined, the objective being to ensure a worklife of 15 years, it was decided that the iron making plant would be modernized at the same time: the coking plant has been overhauled and renovated and its coking time increased to ensure a worklife of at least 34 years. The surface area of the sinter strand was increased from 400 to 520 m{sup 2}, the burden preparation circuit were simplified, and pig iron production capacity increased from 4.2 to 4.5 million metric tons per year. Coal injection was developed so as to obtain 170 kg/t of pig iron, an expert system was added to ensure more efficient blast furnace operation, and new measures have been carried out for environmental protection. Since these heavy investments have been completed, SOLLAC/FOS is a high-performance iron making plant, allowing it to face new challenges in the future.

  10. Polymer-coated iron oxide nanoparticles for medical imaging

    E-Print Network [OSTI]

    Chen, Suelin, Ph.D. Massachusetts Institute of Technology

    2010-01-01T23:59:59.000Z

    One of the most versatile and safe materials used in medicine are polymer-coated iron oxide nanoparticles. This dissertation describes several formulations for in vivo imaging applications. The paramagnetic polymer-coated ...

  11. The relationship between iron and nitrogen fixation in Trichodesmium spp.

    E-Print Network [OSTI]

    Chappell, Phoebe Dreux

    2009-01-01T23:59:59.000Z

    Trichodesmium spp. are considered the dominant nitrogen (N) fixing cyanobacteria in tropical and subtropical oceans, regimes frequently characterized by low iron (Fe). Limited information exists about what levels of Fe ...

  12. LIQUID PHASE SINTERING OF IRON WITH COPPER BASE ALLOY POWDERS

    E-Print Network [OSTI]

    Chen, M.-H.

    2010-01-01T23:59:59.000Z

    Symposium on Powder Metallurgy - The Iron and Steel Inst.a Liquid Phase", Powder Metallurgy, 17 (33), 227 (1974). H.Other made by powder metallurgy techniques. ses to produce

  13. Metal Reduction and Iron Biomineralization by a Psychrotolerant...

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

    sp. strain PV-4, from the microbial mat at a hydrothermal vent of Loihi Seamount in the Pacific Ocean has been further characterized, with emphases on metal reduction and iron...

  14. Microstructure of thin-wall ductile iron castings

    SciTech Connect (OSTI)

    Dogan, Omer N.; Schrems, Karol K.; Hawk, Jeffrey A.; Druschitz, A.P. (Intermet Corp., Lynchburg, VA)

    2001-10-01T23:59:59.000Z

    The automotive industry is seeking to replace current car parts made of aluminum and iron castings with thin wall (down to 2 mm) iron castings to reduce the cost and weight of automobiles. The mechanical properties of thin wall ductile iron castings are affected strongly by the thickness of the castings. The thinner castings cool at a faster rate, and microstructural features that form during solidification, and subsequently, transform in the solid state, are strongly dependent on a geometrical parameter related to the ratio of surface area-to-volume of the casting. As this ratio becomes larger, castings cool faster. As a result, the nodule count on the observation plane of the specimens increases dramatically (>2000 nodules/mm2 in most specimens), i.e. as the thickness of castings decreases. Also, the matrix of the thin walled ductile iron castings becomes more ferritic as the ratio of surface area-to-volume decreases.

  15. Process for removing technetium from iron and other metals

    DOE Patents [OSTI]

    Leitnaker, J.M.; Trowbridge, L.D.

    1999-03-23T23:59:59.000Z

    A process for removing technetium from iron and other metals comprises the steps of converting the molten, alloyed technetium to a sulfide dissolved in manganese sulfide, and removing the sulfide from the molten metal as a slag. 4 figs.

  16. Archaeometallurgical investigation of the iron anchor from the Tantura F shipwreck

    SciTech Connect (OSTI)

    Aronson, A. [Faculty of Engineering, Tel Aviv University, Ramat Aviv 69978 (Israel); Ashkenazi, D., E-mail: dana@eng.tau.ac.il [Faculty of Engineering, Tel Aviv University, Ramat Aviv 69978 (Israel); Barkai, O.; Kahanov, Y. [Leon Recanati Institute for Maritime Studies, University of Haifa, Haifa 31905 (Israel)

    2013-04-15T23:59:59.000Z

    The Tantura F shipwreck was a coaster or a fishing vessel about 15.7 m long, discovered in the Dor/Tantura lagoon, Israel in 1995. It was dated to between the mid-7th and the end of the 8th centuries CE. Among the finds excavated were two T-shaped type iron anchors. Of the two anchors, one (anchor A) was thoroughly studied by archaeometallurgical methods in order to identify forge-welding lines, to determine the welding quality and to understand the manufacturing technology. The examinations included X-ray radiography, XRF analysis, optical microscopy, SEM/EDS observation and analysis, OES analysis and microhardness tests. The investigation included characterization of the composition, microstructure, thermal treatments, forge-welding junctions and slag analysis. The results revealed a heterogeneous microstructure, rich in glassy, fayalite and wstite slag. Iron based phases included ferrite, pearlite, cementite and Widmansttten plates, all typical to wrought iron. The forge-welds of Anchor A were located. Each arm was made of one piece, weighing about 2.53 kg and the shank was made of a few 1.52 kg pieces. The second anchor (anchor B) was only briefly examined visually and with a few radiographs, which support the results from anchor A. The research results revealed significant information about T-shaped anchors and their manufacturing process, including hot-working processes without any additional heat treatments, and folding techniques. The microstructure was similar to other ancient simple tools such as saws, sickles, axes and mortise chisels, and though the technology to make complicated structures and objects, such as swords, existed at that time, the anchors did not require this sophistication; thus simpler techniques were used, presumably because they were more cost-effective. - Highlights: ? Tantura F was a coaster dated to mid-7thend-8th centuries. ? Two iron anchors were discovered at the Tantura F shipwreck-site. ? Anchor A was manufactured from heterogeneous wrought iron blooms. ? Forge-welding lines were detected using archaeometallurgical methods.

  17. Construction work process management

    E-Print Network [OSTI]

    Soares, Jorge Barbosa

    1994-01-01T23:59:59.000Z

    within an organization. TQM started in the 1940s with the application of Statistical Process Control (SPC) to manufacturing (Tenner and De Toro 1992). During World War II, SPC was largely used in the production of weapons. Dr. Joseph Juran describes...: Stuart D. Anderson (Chair of Committee) V&ctor L. Wdlson (Member) Charles H Samson (Member) Ignacio Rodrigue -It rbe (Department Head) Charles D. M ul1 an (Member) August 1994 Major Subject: Civil Engineering ABSTRACT Construction Work...

  18. Slurry Phase Iron Catalysts for Indirect Coal Liquefaction

    SciTech Connect (OSTI)

    Abhaya K. Datye

    1998-09-10T23:59:59.000Z

    This report describes research conducted to support the DOE program in indirect coal liquefaction. Specifically, we have studied the attrition behavior of Iron Fischer-Tropsch catalysts, their interaction with the silica binder and the evolution of iron phases in a synthesis gas conversion process. The results provide significant insight into factors that should be considered in the design of catalysts for the conversion of coal-derived synthesis gas into liquid fuels.

  19. SLURRY PHASE IRON CATALYSTS FOR INDIRECT COAL LIQUEFACTION

    SciTech Connect (OSTI)

    Abhaya K. Datye

    1998-11-19T23:59:59.000Z

    This report describes research conducted to support the DOE program in indirect coal liquefaction. Specifically, they have studied the attrition behavior of iron Fischer-Tropsch catalysts, their interaction with the silica binder and the evolution of iron phases in a synthesis gas conversion process. The results provide significant insight into factors that should be considered in the design of catalysts for converting coal based syngas into liquid fuels.

  20. Activation studies with promoted precipitated iron Fischer-Tropsch catalysts

    E-Print Network [OSTI]

    Manne, Rama Krishna

    1991-01-01T23:59:59.000Z

    ACTIVATION STUDIES WITH PROMOTED PRECIPITATED IRON FISCHER ? TROPSCH CATALYSTS A Thesis by RAMA KRISHNA MANNE Submitted to the Oflice 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: Chemical Engineering ACTIVATION STUDIES WITH PROMOTED PRECIPITATED IRON FISCHER ? TROPSCH CATALYSTS A Thesis by RAMA KRISHNA MANNE Approved as to style and content by: Dragomir B. Bukur (Charr...

  1. Synthesis of iron oxides and the influence of organic acids on the resolubilization of iron minerals

    E-Print Network [OSTI]

    Clarke, Eric Thacher

    1984-01-01T23:59:59.000Z

    of Organ1c Acids on the Resolubi1 izat1on of Iron M1neral s. (May 1984) Er1c Thacher Clarke, B. A. , Southwestern University Chairman of Advisory Committee: Dr. Richard H. Loeppert Equilibrium Fe concentrat1ons of calcareous soil are readily... precipitated from soil solution owing to the high pH of calcareous soil and the low solubil1ty product of Fe(OH)3. Most plants respond to deficient Fe concentrations by development of chlorosis symptoms unless supplementary Fe is supplied to the plant...

  2. Electrodeposition of binary iron-group alloys

    SciTech Connect (OSTI)

    Sasaki, K.Y.; Talbot, J.B. [Univ. of California, San Diego, La Jolla, CA (United States)

    1995-03-01T23:59:59.000Z

    Thin films of NiCo and CoFe have been galvanostatically electroplated onto a platinum rotating disk electrode from simple sulfate baths containing 0.5M of the more noble metal sulfate and 0.1M of the less noble metal sulfate. The experimental results are compared to those of previous studies of NiFe codeposition in order to study the anomalous codeposition behavior of the binary iron-group alloys. Comparison of the electrodeposition results indicates that codeposition of these binary alloys is not totally analogous. It was found that codeposition of NiCo and NiFe show more mass-transfer effects than does CoFe deposition within the range of current densities studied. A model of anomalous codeposition put forth previously for NiFe was applied to the electrodeposition of NiCo and CoFe to determine the extensibility of the model, which assumes metal mono hydroxides, MOH{sup +}, are the important charge-transfer species. This model was unable to characterize fully either NiCo or CoFe electrodeposition. However, with minor changes to the hydrolysis constants used in the model, the model predictions were found to agree with the data for CoFe codeposition and greatly, improve the fit for the NiCo results.

  3. ORISE: Work Smart Standards

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated CodesTransparencyDOENurseResourcesThe Value The U.S. DepartmentWork Smart

  4. Work with Biological Materials

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengtheningWildfires may contribute more to &83 3.3 Table3Work with

  5. Exchange bias in Core-Shell Iron-Iron Oxide Nanoclusters

    SciTech Connect (OSTI)

    Kaur, Maninder; McCloy, John S.; Qiang, You

    2013-04-03T23:59:59.000Z

    An exchange bias study has been performed on core-shell iron-iron oxide (Fe-Fe3O4) nanoclusters (NCs) of size 11 nm and 14 nm carrying a different core to shell ratio. NCs show complicated behaviors due to competition between interfacial exchange and Zeeman energy in the presence of magnetic field during cooling. These behaviors are accompanied by the evolution of size- dependent cluster structures in the ferromagnetic-core/ferri- or antiferro-magnetic-shell. Smaller clusters have larger coercive field, exchange bias field, and vertical magnetization shift due to the greater contribution from frozen spins of shell/interfaces. These smaller clusters thus also show more dramatic changes with the training effect. Both sizes of clusters display an additional anomaly of the upper part of the hysteresis loop at 10 K under low cooling field (0.1 kOe). This anomaly decreases with number of loop cycles with same field, and disappear with large cooling field (> 0.1 kOe). It may be caused by the competition between the magnetization reversal and the magnetostatic interactions.

  6. Interplay between interband coupling and ferromagnetism in iron pnictide superconductor/ferromagnet/iron pnictide superconductor junctions

    SciTech Connect (OSTI)

    Liu, S. Y.; Tao, Y. C., E-mail: yctao88@163.com [Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210023 (China); Hu, J. G. [Department of Physics, Yangzhou University, Yangzhou 225002 (China)

    2014-08-28T23:59:59.000Z

    An extended eight-component Bogoliubov-de Gennes equation is applied to study the Josephson effect between iron-based superconductors (SCs) with s{sub }-wave pairing symmetry, separated by an ferromagnet (FM). The feature of damped oscillations of critical Josephson current as a function of FM thickness, the split of the peaks induced by the interband coupling is much different from that for the junction with the s{sub }-wave SCs replaced by s{sub ++}-wave ones. In particular, a 0?? transition as a function of interband coupling strength ? is found to always exhibit with the corresponding dip shifting toward the larger ? due to enhancing the spin polarization in the FM, while there exits no 0?? transition for the SC with s{sub ++}-wave pairing symmetry. The two features can be used to identify the pairing symmetry in the iron pnictide SC different from the s{sub ++}-wave one in MgB{sub 2}. Experimentally, by adjusting the doping level in the s{sub }-wave SCs, one can vary ?.

  7. Weld overlay cladding with iron aluminides

    SciTech Connect (OSTI)

    Goodwin, G.M.

    1996-11-01T23:59:59.000Z

    The hot and cold cracking tendencies of some early iron aluminide alloy compositions limited their use to applications where good weldability was not required. Considerable progress has been made toward improving this situation. Using hot crack testing techniques developed at ORNL and a systematic study of alloy compositional effects, we have established a range of compositions within which hot cracking resistance is very good, essentially equivalent to stainless steel. Cold cracking, however, remains an issue, and extensive efforts are continuing to optimize composition and welding parameters, especially preheat and postweld heat treatment, to minimize its occurrence. In terms of filler metal and process development, we have progressed from sheared strip through aspiration cast rod and shielded metal arc electrodes to the point where we can now produce composite wire with a steel sheath and aluminum core in coil form, which permits the use of both the gas tungsten arc and gas metal arc processes. This is a significant advancement in that the gas metal arc process lends itself well to automated welding, and is the process of choice for commercial weld overlay applications. Using the newly developed filler metals, we have prepared clad specimens for testing in a variety of environments both in-house and outside ORNL, including laboratory and commercial organizations. As a means of assessing the field performance of this new type of material, we have modified several non-pressure boundary boiler components, including fuel nozzles and port shrouds, by introducing areas of weld overlay in strategic locations, and have placed these components in service in operating boilers for a side-by-side comparison with conventional corrosion-resistant materials.

  8. Working Group Report: Sensors

    SciTech Connect (OSTI)

    Artuso, M.; et al.,

    2013-10-18T23:59:59.000Z

    Sensors play a key role in detecting both charged particles and photons for all three frontiers in Particle Physics. The signals from an individual sensor that can be used include ionization deposited, phonons created, or light emitted from excitations of the material. The individual sensors are then typically arrayed for detection of individual particles or groups of particles. Mounting of new, ever higher performance experiments, often depend on advances in sensors in a range of performance characteristics. These performance metrics can include position resolution for passing particles, time resolution on particles impacting the sensor, and overall rate capabilities. In addition the feasible detector area and cost frequently provides a limit to what can be built and therefore is often another area where improvements are important. Finally, radiation tolerance is becoming a requirement in a broad array of devices. We present a status report on a broad category of sensors, including challenges for the future and work in progress to solve those challenges.

  9. How NIF Works

    ScienceCinema (OSTI)

    None

    2010-09-01T23:59:59.000Z

    The National Ignition Facility, located at Lawrence Livermore National Laboratory, is the world's largest laser system... 192 huge laser beams in a massive building, all focused down at the last moment at a 2 millimeter ball containing frozen hydrogen gas. The goal is to achieve fusion... getting more energy out than was used to create it. It's never been done before under controlled conditions, just in nuclear weapons and in stars. We expect to do it within the next 2-3 years. The purpose is threefold: to create an almost limitless supply of safe, carbon-free, proliferation-free electricity; examine new regimes of astrophysics as well as basic science; and study the inner-workings of the U.S. stockpile of nuclear weapons to ensure they remain safe, secure and reliable without the need for underground testing. More information about NIF can be found at:

  10. file://\\Bellview\TeamWorks\TRUTeamWorks.PDF

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  1. http://bellview/TeamWorks/TRUTeamWorks.htm

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  4. http://bellview/TeamWorks/TRUTeamWorks.htm

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , .,Shreve; University of0a.2/049/03 | Shipments

  5. http://bellview/TeamWorks/TRUTeamWorks.htm

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , .,Shreve; University of0a.2/049/03 | Shipments16/03

  6. http://bellview/TeamWorks/TRUTeamWorks.htm

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , .,Shreve; University of0a.2/049/03 |

  7. http://bellview/TeamWorks/TRUTeamWorks.htm

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , .,Shreve; University of0a.2/049/03 |13/03 |

  8. http://bellview/TeamWorks/TRUTeamWorks.htm

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , .,Shreve; University of0a.2/049/03 |13/03 |20/03 |

  9. http://bellview/TeamWorks/TRUTeamWorks.htm

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , .,Shreve; University of0a.2/049/03 |13/03 |20/03

  10. http://bellview/TeamWorks/TRUTeamWorks.htm

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , .,Shreve; University of0a.2/049/03 |13/03

  11. Separation of Fischer-Tropsch Wax Products from Ultrafine Iron Catalyst Particles

    SciTech Connect (OSTI)

    James K. Neathery; Gary Jacobs; Amitava Sarkar; Burtron H. Davis

    2005-09-30T23:59:59.000Z

    In this reporting period, a study of ultra-fine iron catalyst filtration was initiated to study the behavior of ultra-fine particles during the separation of Fischer-Tropsch Synthesis (FTS) liquids filtration. The overall focus of the program is with slurry-phase FTS in slurry bubble column reactor systems. Hydrocarbon products must be separated from catalyst particles before being removed from the reactor system. An efficient wax product/catalyst separation system is a key factor for optimizing operating costs for iron-based slurry-phase FTS. Previous work has focused on catalyst particle attrition and the formation of ultra-fine iron carbide and/or carbon particles. With the current study, we are investigating how the filtration properties are affected by these chemical and physical changes of the catalyst slurry during activation/synthesis. The change of particle size during the slurry-phase FTS has monitored by withdrawing catalyst sample at different TOS. The measurement of dimension of the HRTEM images of samples showed a tremendous growth of the particles. Carbon rims of thickness 3-6 nm around the particles were observed. This growth in particle size was not due to carbon deposition on the catalyst. A conceptual design and operating philosophy was developed for an integrated wax filtration system for a 4 liter slurry bubble column reactor to be used in Phase II of this research program. The system will utilize a primary inertial hydroclone followed by a Pall Accusep cross-flow membrane. Provisions for cleaned permeate back-pulsing will be included to as a flux maintenance measure.

  12. Dynamics of iron-acceptor-pair formation in co-doped silicon

    SciTech Connect (OSTI)

    Bartel, T.; Gibaja, F.; Graf, O.; Gross, D.; Kaes, M.; Heuer, M.; Kirscht, F. [Calisolar GmbH, Magnusstrasse 11, 12489 Berlin (Germany)] [Calisolar GmbH, Magnusstrasse 11, 12489 Berlin (Germany); Mller, C. [CiS Forschungsinstitut fr Mikrosensorik und Photovoltaik GmbH, Konrad-Zuse-Str. 14, 99099 Erfurt (Germany) [CiS Forschungsinstitut fr Mikrosensorik und Photovoltaik GmbH, Konrad-Zuse-Str. 14, 99099 Erfurt (Germany); TU Ilmenau, Institut fr Physik, Weimarer Str. 32, 98693 Ilmenau (Germany); Lauer, K. [CiS Forschungsinstitut fr Mikrosensorik und Photovoltaik GmbH, Konrad-Zuse-Str. 14, 99099 Erfurt (Germany)] [CiS Forschungsinstitut fr Mikrosensorik und Photovoltaik GmbH, Konrad-Zuse-Str. 14, 99099 Erfurt (Germany)

    2013-11-11T23:59:59.000Z

    The pairing dynamics of interstitial iron and dopants in silicon co-doped with phosphorous and several acceptor types are presented. The classical picture of iron-acceptor pairing dynamics is expanded to include the thermalization of iron between different dopants. The thermalization is quantitatively described using Boltzmann statistics and different iron-acceptor binding energies. The proper understanding of the pairing dynamics of iron in co-doped silicon will provide additional information on the electronic properties of iron-acceptor pairs and may become an analytical method to quantify and differentiate acceptors in co-doped silicon.

  13. Work Experience Guidance for Managers

    E-Print Network [OSTI]

    Work Experience Guidance for Managers When approached with a request for work experience, managers. Any queries regarding CRB checks should be directed to your designated HR Manager. When a work any work, paid or unpaid: Before 7am or after 7pm For more than two hours on a school day or Sunday

  14. High Temperature Membrane Working Group

    Broader source: Energy.gov [DOE]

    This presentation provides an overview of the High Temperature Membrane Working Group Meeting in May 2007.

  15. Video Shoot Scope of Work

    Broader source: Energy.gov [DOE]

    Video Shoot Scope of Work, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  16. The Work for Others Agreement

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in the Earth'sConnect,LLC THE WESTERN WIND ANDWork

  17. Assessment of Energy Efficiency Improvement and CO2 Emission Reduction Potentials in the Iron and Steel Industry in China

    E-Print Network [OSTI]

    Hasanbeigi, Ali

    2013-01-01T23:59:59.000Z

    Potentials in the Iron and steel Industry in China. Reportfor the U.S. Iron and Steel Industry. An ENERGY STAR Guidebusiness/industry/Iron_Steel_Guide.pdf Worrell, E. Ramesohl,

  18. Type Ia Supernova Remnants: Shaping by Iron Bullets

    E-Print Network [OSTI]

    Tsebrenko, Danny

    2015-01-01T23:59:59.000Z

    Using 2D numerical hydrodynamical simulations of type Ia supernova remnants (SNR Ia) we show that iron clumps few times denser than the rest of the SN ejecta might form protrusions in an otherwise spherical SNR. Such protrusions exist in some SNR Ia, e.g., SNR 1885 and Tycho. Iron clumps are expected to form in the deflagration to detonation explosion model. In SNR Ia where there are two opposite protrusions, termed ears, such as Kepler's SNR and SNR G1.9+0.3, our scenario implies that the dense clumps, or iron bullets, were formed along an axis. Such a preferred axis can result from a rotating white dwarf progenitor. If our claim holds, this offers an important clue to the SN Ia explosion scenario.

  19. Method and system for producing metallic iron nuggets

    DOE Patents [OSTI]

    Iwasaki, Iwao; Lindgren, Andrew J.; Kiesel, Richard F.

    2013-06-25T23:59:59.000Z

    Method and system for producing metallic nuggets includes providing reducible mixture of reducing material (such as carbonaceous material) and reducible iron bearing material (such as iron oxide) that may be arranged in discrete portions, such as mounds or briquettes, on at least a portion of a hearth material layer (such as carbonaceous material). A coarse overlayer of carbonaceous material may be provided over at least some of the discrete portions. Heating the reducible mixture to 1425.degree. C. or 1400.degree. C. or 1375.degree. C. results in formation of an intermediate product of one or more metallic iron nuggets, which may have a sulfur content of less than 0.03%, and slag, which may have less than 5% mass MgO, which may have a ratio of percent by weight sulfur in the slag over percent by weight sulfur in the metallic nuggets of at least about 12 or at least about 15.

  20. Trivalent iron induced gelation in lambda-carrageenan

    SciTech Connect (OSTI)

    Running, Cordelia A.; Falshaw, Ruth; Janaswamy, Srinivas (Purdue)

    2012-05-24T23:59:59.000Z

    This communication reports gelation of lambda-carrageenan, for the first time, in the presence of trivalent iron ions. Kappa-, iota- and lambda-carrageenans are sulfated polysaccharides used extensively in food, pharmaceutical and medical applications. Kappa- and iota-carrageenans show gelation in the presence of mono- and di-valent ions, but lambda-carrageenan yields only viscous solutions. Our results show that gelation in lambda-carrageenan indeed is possible, but with trivalent ions. X-ray fiber diffraction patterns of iron (III)-lambda-carrageenan are characteristic of highly oriented and polycrystalline fibers containing well resolved Bragg reflections. The elastic modulus (G*) of the product is far greater than the loss modulus (G*) indicating the thermal stability of lambda-carrageenan in the presence of iron (III) ions. This novel finding has potential to expand lambda-carrageenan's current utility beyond a viscosifying agent.

  1. XMM-Newton Observations of AGN Iron Line Profiles

    E-Print Network [OSTI]

    James Reeves

    2002-11-18T23:59:59.000Z

    XMM-Newton observations of type I AGN are presented. The properties of the iron K emission line are reviewed, the majority of AGN observed by XMM-Newton show narrow, unresolved (by XMM) iron lines at 6.4 keV from cold matter that must originate far from the inner accretion disc, perhaps in the putative torus or outer broad line region. The strength of this narrow line appears to decrease with luminosity, implying a reduction in the covering fraction of this material in the more luminous quasars. Few examples of the broad, relativistic iron line profile have been found by XMM-Newton, although in MCG -6-30-15, the extreme breadth of the broad line component may imply a Kerr metric for the central black hole. Generally, relativistic Fe K line profiles are not required in a number of other Seyfert 1 X-ray spectra.

  2. Experimental results of neutron fluence outside an iron shield in the forward direction

    SciTech Connect (OSTI)

    Torres, M.M.C. [Argonne National Lab., IL (United States); Elwyn, A.J. [Fermi National Accelerator Lab., Batavia, IL (United States); Fein, D.; James, E.; Johns, K. [Arizona Univ., Tucson, AZ (United States); Davis, W. [Ball State Univ., Muncie, IN (United States); Ciampa, D.P. [Minnesota Univ., Minneapolis, MN (United States); Mierkiewicz, E. [Northern Illinois Univ., De Kalb, IL (United States)

    1996-09-01T23:59:59.000Z

    Analyses of both lateral shielding measurements and Monte Carlo calculations for beam stop geometry for incident hadrons at energies between 10 GeV and 10 TeV suggests that the dose equivalent can be represented by the expression H = H{sub 0}(E)e{sup -r/{lambda}}/r{sup 2} where H, is the source term, r is the radial distance to the point of interest in the shield, and {lambda} is the effective interaction length, or absorption mean free path. However, unlike the lateral shielding case, there is no similarly simple analytical expression that can be used to describe the on-axis longitudinal cascade development. In this study the results from the measurement in the forward direction of neutron fluence spectra (and the derived quantity dose equivalent) for 25 to 150 GeV pions incident on an iron beam stop as a function of thickness of iron are presented. The observed dependence of both fluence and dose equivalent on shield thickness and hadron energy was then quantified in terms of an expression in which a build up factor as well as an attenuation term was included. On the basis of this analysis the conversion factor from fluence to dose equivalent was also determined for these forward going neutrons. This work represents the first systematic study at an high energy accelerator of the depth dependence of neutron fluence in longitudinal shielding.

  3. Pressurized chemical-looping combustion of coal with an iron ore-based oxygen carrier

    SciTech Connect (OSTI)

    Xiao, Rui; Song, Min; Zhang, Shuai; Shen, Laihong [School of Energy and Environment, Southeast University, Sipailou No. 2, Nanjing 210096 (China); Song, Qilei [School of Energy and Environment, Southeast University, Sipailou No. 2, Nanjing 210096 (China); Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA (United Kingdom); Lu, Zuoji [School of Energy and Environment, Southeast University, Sipailou No. 2, Nanjing 210096 (China); GCL Engineering Limited, Zhujiang No. 1, Nanjing 210008 (China)

    2010-06-15T23:59:59.000Z

    Chemical-looping combustion (CLC) is a new combustion technology with inherent separation of CO{sub 2}. Most of the previous investigations on CLC of solid fuels were conducted under atmospheric pressure. A pressurized CLC combined cycle (PCLC-CC) system is proposed as a promising coal combustion technology with potential higher system efficiency, higher fuel conversion, and lower cost for CO{sub 2} sequestration. In this study pressurized CLC of coal with Companhia Valedo Rio Doce (CVRD) iron ore was investigated in a laboratory fixed bed reactor. CVRD iron ore particles were exposed alternately to reduction by 0.4 g of Chinese Xuzhou bituminous coal gasified with 87.2% steam/N{sub 2} mixture and oxidation with 5% O{sub 2} in N{sub 2} at 970 C. The operating pressure was varied between 0.1 MPa and 0.6 MPa. First, control experiments of steam coal gasification over quartz sand were performed. H{sub 2} and CO{sub 2} are the major components of the gasification products, and the operating pressure influences the gas composition. Higher concentrations of CO{sub 2} and lower fractions of CO, CH{sub 4}, and H{sub 2} during the reduction process with CVRD iron ore was achieved under higher pressures. The effects of pressure on the coal gasification rate in the presence of the oxygen carrier were different for pyrolysis and char gasification. The pressurized condition suppresses the initial coal pyrolysis process while it also enhances coal char gasification and reduction with iron ore in steam, and thus improves the overall reaction rate of CLC. The oxidation rates and variation of oxygen carrier conversion are higher at elevated pressures reflecting higher reduction level in the previous reduction period. Scanning electron microscope and energy-dispersive X-ray spectroscopy (SEM-EDX) analyses show that particles become porous after experiments but maintain structure and size after several cycles. Agglomeration was not observed in this study. An EDX analysis demonstrates that there is very little coal ash deposited on the oxygen carrier particles but no appreciable crystalline phases change as verified by X-ray diffraction (XRD) analysis. Overall, the limited pressurized CLC experiments carried out in the present work suggest that PCLC of coal is promising and further investigations are necessary. (author)

  4. Study of nanocomposites based on iron oxides and pectin

    SciTech Connect (OSTI)

    Chistyakova, Nataliya I., E-mail: nchistyakova@yandex.ru; Shapkin, Alexey A., E-mail: nchistyakova@yandex.ru; Sirazhdinov, Ruslan R., E-mail: nchistyakova@yandex.ru; Gubaidulina, Tatiana V., E-mail: nchistyakova@yandex.ru; Kiseleva, Tatiana Yu., E-mail: nchistyakova@yandex.ru; Kazakov, Alexander P., E-mail: nchistyakova@yandex.ru; Rusakov, Vyacheslav S., E-mail: nchistyakova@yandex.ru [M. V. Lomonosov Moscow State University, Faculty of Physics, Leninskie gory, 119991 Moscow (Russian Federation)

    2014-10-27T23:59:59.000Z

    Mssbauer and X-ray diffraction study of nanocomposites based on iron oxides and pectin (PC) was carried out involving magnetization measurements. The concentrations of PC in nanocomposites varied from 0 to 10%. Mssbauer investigations of nanocomposites were carried out in the temperature range from 5 to 300 K. Many-state superparamagnetic relaxation model was used for spectra fitting. The magnetization, M(T,H), was measured in the temperature interval of 80-300 K and magnetic field up to 10 kOe. Formation of the 'iron-polymer' interface was not observed. Particle sizes were estimated using the Mssbauer and X-ray powder diffraction data.

  5. Recovery of iron oxide from coal fly ash

    DOE Patents [OSTI]

    Dobbins, Michael S. (Ames, IA); Murtha, Marlyn J. (Ames, IA)

    1983-05-31T23:59:59.000Z

    A high quality iron oxide concentrate, suitable as a feed for blast and electric reduction furnaces is recovered from pulverized coal fly ash. The magnetic portion of the fly ash is separated and treated with a hot strong alkali solution which dissolves most of the silica and alumina in the fly ash, leaving a solid residue and forming a precipitate which is an acid soluble salt of aluminosilicate hydrate. The residue and precipitate are then treated with a strong mineral acid to dissolve the precipitate leaving a solid residue containing at least 90 weight percent iron oxide.

  6. Iron-phosphorus relationships in Fe chlorisis of sorghum

    E-Print Network [OSTI]

    Morales-Vargas, Dennis A

    1979-01-01T23:59:59.000Z

    IRON-PHOSPHORUS RELATIONSHIPS IN FE CHLOROSIS OF SORGHUM A Thesis by DENNIS A. MORALES-VARGAS Submitted to the Graduate College of Texas A8M University in partial fulfillment of the requirement for the degree of MASl'ER OF SCIENCE December... 1979 Major Subject: Soil Science IRON-PHOSPHORUS RELATIONSHIPS IN FE CHLOROSI OF SORGHUM A Thesis by DENNIS A. MORALES-VARGAS Approved as to style and content by: \\ J(c'w"H~. v& 4 Cc ~. r&'4 wc' c "&"~ / ~Chairman of Committee ! ~Co-' hai...

  7. Iron is the Key to Preserving Dinosaur Soft Tissue

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes | NationalCurriculum IntroductionInvestor14,566 SiteIronIron is

  8. Iron is the Key to Preserving Dinosaur Soft Tissue

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes | NationalCurriculum IntroductionInvestor14,566 SiteIronIron

  9. Iron Catalysis in Oxidations by Ozone - Energy Innovation Portal

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation Peer Review 2012IowaFebruaryIronIron Find

  10. Iron Chalcogenide-based Superconductors on Textured Substrates - Energy

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation Peer Review 2012IowaFebruaryIronIron

  11. Iron is the Key to Preserving Dinosaur Soft Tissue

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation Peer ReviewIron is the Key to PreservingIron

  12. The Iron Spin Transition in the Earth's Lower Mantle

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening a solidSynthesis of 2Dand WaterThe Future isThe Iron SpinThe Iron

  13. Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project...

    Energy Savers [EERE]

    Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project Scoping and Feasibility Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project Scoping and Feasibility...

  14. Characterization of temperature profile in furnace and solubility of iron in silicon

    E-Print Network [OSTI]

    Modi, Vrajesh Y

    2011-01-01T23:59:59.000Z

    A better understanding of the behavior of impurities, such as iron, in silicon can lead to increases in solar cell efficiency. The purpose of this thesis was to study the behavior of iron in silicon via three sub-tasks: ...

  15. Fe isotope and trace element geochemistry of the Neoproterozoic syn-glacial Rapitan iron formation

    E-Print Network [OSTI]

    Long, Bernard

    pattern likely records a steep isotopic gradient across the iron chemocline in Rapitan seawater. 2011 metabolism, and function as a micronu- trient (Anbar, 2004; Beard et al., 2003a; Johnson et al., 2008a). Iron

  16. Sedimentary and mineral dust sources of dissolved iron to the world ocean

    E-Print Network [OSTI]

    Moore, J. K; Braucher, O.

    2008-01-01T23:59:59.000Z

    of the tropi- cal Pacific Ocean II. Iron biogeochemistry,in the Northeast Pacific Ocean Gyre: Aerosols, iron, and theF. M. M. : The equatorial Pacific Ocean: Grazer-controlled

  17. Frataxin (FXN) Based Regulation of the Iron-Sulfur Cluster Assembly Complex

    E-Print Network [OSTI]

    Rabb, Jennifer

    2012-07-16T23:59:59.000Z

    Iron-sulfur clusters are protein cofactors that are critical for all life forms. Elaborate multi-component systems have evolved for the biosynthesis of these cofactors to protect organisms from the toxic effects of free iron and sulfide ions...

  18. ITP Steel: Energy and Environmental Profile fo the U.S. Iron...

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

    Energy and Environmental Profile fo the U.S. Iron and Steel Industry ITP Steel: Energy and Environmental Profile fo the U.S. Iron and Steel Industry steelprofile.pdf More...

  19. Sedimentary and mineral dust sources of dissolved iron to the world ocean

    E-Print Network [OSTI]

    Moore, J. K; Braucher, O.

    2008-01-01T23:59:59.000Z

    A. , and Zeldis, J. : A mesoscale phytoplankton bloom in theC. S. : Iron transport by mesoscale Haida eddies in the Gulfand the response of a mesoscale iron addition experiment,

  20. Interactions of Fe(II) with the iron oxidizing bacterium Rhodopseudomonas palustris TIE-1

    E-Print Network [OSTI]

    Bird, Lina J. (Lina Joana)

    2013-01-01T23:59:59.000Z

    Microbial anaerobic iron oxidation has long been of interest to biologists and geologists, both as a possible mechanism for the creation of banded iron formations before the rise of oxygen, and as a model system for organisms ...

  1. V-021: Cisco IronPort Web / Email Security Appliance Sophos Anti...

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

    1: Cisco IronPort Web Email Security Appliance Sophos Anti-Virus Multiple Vulnerabilities V-021: Cisco IronPort Web Email Security Appliance Sophos Anti-Virus Multiple...

  2. How Godzilla Ate Pittsburgh: The Long Rise of the Japanese Iron and Steel Industry, 19001973

    E-Print Network [OSTI]

    Bernard Elbaum

    2007-01-01T23:59:59.000Z

    poorly endowed as Japan in coking coal and iron ore (WarrenYawata of iron ore for coking coal and the progressive in-

  3. Mossbauer-effect and x-ray-absorption spectral study of sonochemically prepared amorphous iron

    E-Print Network [OSTI]

    Suslick, Kenneth S.

    Received 10 November 1997 The Mossbauer spectra of amorphous iron, prepared by using sonochemical methods

  4. Chromium modified nickel-iron aluminide useful in sulfur bearing environments

    DOE Patents [OSTI]

    Cathcart, John V. (Knoxville, TN); Liu, Chain T. (Oak Ridge, TN)

    1989-06-13T23:59:59.000Z

    An improved nickel-iron aluminide containing chromium and molybdenum additions to improve resistance to sulfur attack.

  5. Studies of anisotropy of iron based superconductors

    SciTech Connect (OSTI)

    Murphy, Jason [Ames Laboratory

    2013-05-15T23:59:59.000Z

    To study the electronic anisotropy in iron based superconductors, the temperature dependent London penetration depth, {Delta}{lambda}#1;#21;(T), have been measured in several compounds, along with the angular dependent upper critical field, H{sub c2}(T). Study was undertaken on single crystals of Ba(Fe{sub 1-x}Co{sub x}){sub 2}As{sub 2} with x=0.108 and x=0.127, in the overdoped range of the doping phase diagram, characterized by notable modulation of the superconducting gap. Heavy ion irradiation with matching field doses of 6 T and 6.5 T respectively, were used to create columnar defects and to study their effect on the temperature {Delta}{lambda}#1;#21;(T). The variation of the low-temperature penetration depth in both pristine and irradiated samples was #12;tted with a power-law function {Delta}{lambda}#1;#21;(T) = AT{sup n}. Irradiation increases the magnitude of the pre-factor A and decreases the exponent n, similar to the effect on the optimally doped samples. This finding supports the universal s{sub {+-}}#6; scenario for the whole doping range. Knowing that the s{sub {+-}}#6; gap symmetry exists across the superconducting dome for the electron doped systems, we next looked at {lambda}#21;(T), in optimally - doped, SrFe{sub 2}(As{sub 1-x}P{sub x}){sub 2}, x =0.35. Both, as-grown (T{sub c} ~ #25;25 K) and annealed (T{sub c} ~ #25;35 K) single crystals of SrFe{sub 2}(As{sub 1-x}P{sub x}){sub 2} were measured. Annealing decreases the absolute value of the London penetration depth from #21;{lambda}(0) = 300 {+-}#6; 10 nm in as-grown samples to {lambda}#21;(0) = 275{+-}#6;10 nm. At low temperatures, {lambda}#21;(T) #24;~ T indicates a superconducting gap with line nodes. Analysis of the full-temperature range superfluid density is consistent with the line nodes, but differs from the simple single-gap d-wave. The observed behavior is very similar to that of BaFe{sub 2}(As{sub 1-x}P{sub x}){sub 2}, showing that isovalently substituted pnictides are inherently different from the charge-doped materials. In-plane resistivity measurements as a function of temperature, magnetic field, and its orientation with respect to the crystallographic ab-plane were used to study the upper critical field, H{sub c2}, of two overdoped compositions of Ba(Fe{sub 1-x}Ni{sub x}){sub 2}As{sub 2}, x=0.054 and x=0.072. Measurements were performed using precise alignment (with accuracy less than 0.1{degree}) of the magnetic field with respect to the Fe-As plane. The dependence of the H{sub c2} on angle {theta}#18; between the field and the ab- plane was measured in isothermal conditions in a broad temperature range. We found that the shape of the H{sub c2} vs. {theta}#18; curve clearly deviates from the Ginzburg-Landau theory.

  6. Variable-temperature solid-state NMR studies of iron(II) and iron(III) complexes

    E-Print Network [OSTI]

    Shepard, Patricia Arlene

    1989-01-01T23:59:59.000Z

    the first communication reporting the use of C CP/MAS NMR to observe paramagnetic solids directly. Zust as shift reagents had been used in solution-state NMR, selected paramagnetic lanthanide acetates exhibited paramagnetic shifts in the solid state... of the Fe(III) chloride salt yields the w-oxo-bis[porphine- iron(III)] dimer where the two iron centers are bridged via an oxygen. The synthesis, characterization and crystal structure of the metallo-porphyrin dimer w-oxo-bis[tetra- phenylporphineiron...

  7. The Continental Margin is a Key Source of Iron to the HNLC North Pacific Ocean

    E-Print Network [OSTI]

    The Continental Margin is a Key Source of Iron to the HNLC North Pacific Ocean Phoebe J. Lam1 concentrations in the upper 500m of the Western Subarctic Pacific, an iron-limited High Nutrient Low Chlorophyll a key source of bioavailable Fe to the HNLC North Pacific. Keywords: iron, continental margin, HNLC 1

  8. Phase diagram of iron, revised-core temperatures Thomas J. Ahrens, Kathleen G. Holland,1

    E-Print Network [OSTI]

    Stewart, Sarah T.

    . In agreement with Brown [2001] the discrepancy between the diamond cell melting data and the iron shock and Ahrens [1998b]. [6] We used polycrystalline iron (99%) targets in the shape of two cylinders that for the VISAR shots, the iron sample is covered with a 0.5 mm thick shim of polycrystalline Mo. [10] For g

  9. Iron Based Superconductors Jeffrey W. Lynn, NIST Center for Neutron Research

    E-Print Network [OSTI]

    Lynn, Jeffrey W.

    Iron Based Superconductors Jeffrey W. Lynn, NIST Center for Neutron Research The phenomenon energy without dissipation. Superconductors have other unique properties such as the ability to expel of superconductors based on iron. These iron-based superconductors have initiated a flurry of activity as researchers

  10. Persistence of iron limitation in the western subarctic Pacific SEEDS II mesoscale fertilization experiment

    E-Print Network [OSTI]

    Cochlan, William P.

    Persistence of iron limitation in the western subarctic Pacific SEEDS II mesoscale fertilization t The cumulative evidence from more than a dozen mesoscale iron-enrichment studies in high nitrate low chlorophyll diatoms, vary greatly among these mesoscale experiments even though similar amounts of iron were added

  11. 2-54 GEOLOGICAL & ENVIRONMENTAL SCIENCES Mechanisms of Selenate Adsorption on Iron

    E-Print Network [OSTI]

    Sparks, Donald L.

    mechanisms on hematite (-Fe2 O3 ), goethite (-FeOOH), and amorphous iron hydroxide (Fe(OH)3 ). Selenate (SeO4 to hema- tite (-Fe2 O3 ), goethite (-FeOOH), and amorphous iron hydroxide (Fe(OH)3 ). The objectives adsorption mechanisms. Hematite, goethite, and amorphous iron hydroxide were chosen due to their important

  12. Role of Surface Precipitation in Copper Sorption by the Hydrous Oxides of Iron and Aluminum

    E-Print Network [OSTI]

    Chorover, Jon

    Role of Surface Precipitation in Copper Sorption by the Hydrous Oxides of Iron and Aluminum K. G precipitation; sorption; isotherms; X-ray diffraction; hydrous iron oxide; hydrous aluminum oxide; copper. INTRODUCTION Hydrous oxides of iron (HFO) and aluminum (HAO) are important mineral components of natural

  13. Hot gas desulfurization with sorbents containing oxides of zinc, iron, vanadium and copper

    SciTech Connect (OSTI)

    Akyurtlu, A.; Akyurtlu, J.F.

    1992-01-01T23:59:59.000Z

    The main objective of this research is to evaluate the desulfurization performance of novel sorbents consisting of different combinations of zinc, iron, vanadium and copper oxides; and to develop a sorbent which can reduce H{sub 2}S levels to less than 1 ppmv, which can stabilize zinc, making operations above 650{degrees}C possible, and which can produce economically recoverable amounts of elemental sulfur during regeneration. This objective will be accomplished by evaluating the sorbent performance using fixed-bed and TGA experiments supported by sorbent characterization at various reaction extents. In the seventh quarter, the screening of the promoted sorbents in the packed bed reactor was continued. The results of this work were presented at the 1992 University Coal Research Contractors, Review Conference at Pittsburgh, PA.

  14. Effect of Sintering Temperature on Dielectric Properties of Iron Deficient Nickel-Ferrite

    SciTech Connect (OSTI)

    Rani, Renu [Electroceramics Research Lab, GVM Girls College, Sonepat-131001 (India); School of Physics and Material Science, Thapar University, Patiala-147004 (India); Singh, Sangeeta [Department of Physics, GVM Girls College, Sonepat-131001 (India); Juneja, J. K. [Department of Physics, Hindu College, Sonepat-131001 (India); Prakash, Chandra [Directorate of ER and IPR, DRDO, DRDO Bhawan, New Delhi-110105 (India); Raina, K. K. [School of Physics and Material Science, Thapar University, Patiala-147004 (India)

    2011-11-22T23:59:59.000Z

    Nickel Ferrite among all the magneto ceramic materials have been studied very much due to its large number of applications. But there is a large scope of modification of its properties. Thus people still working on it for improvisation of its properties via compositional and structural modifications. Present paper reporting the preparation and characterization of iron deficient Nickel ferrite for different sintering temperature. Ferrite samples having the general formula NiFe1.98O{sub 4} were prepared using the standard ceramic method. The phase formation was confirmed by X-ray diffraction technique. The effect of sintering temperature on the electrical properties and resistivity was studied. The data shows that dielectric properties are highly dependent on the sintering temperature.

  15. Flexible Work Arrangements Manager Guidelines

    E-Print Network [OSTI]

    Jones, Michelle

    Flexible Work Arrangements Manager Guidelines The Ohio State University Office of Human Resources Page 1 of 2 Flexible Work Arrangement ­ Manager Assessment Issued 07/15/10 When you receive a proposal your manager to review for a decision. Remember that granting a flexible work arrangement may help

  16. Water Resources Working Group Report

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Water Resources Working Group Report This report provided content for the Wisconsin Initiative in February 2011. #12;Water Resources Working Group Wisconsin Initiative on Climate Change Impacts October 2010 #12;Water Resources Working Group Members WICCI Tim Asplund (Co-Chair) - Wisconsin Department

  17. Hydrocarbon Formation in Metallic Iron/Water Systems

    E-Print Network [OSTI]

    Deng, Baolin

    Hydrocarbon Formation in Metallic Iron/Water Systems B A O L I N D E N G , , T I M O T H Y J . C-labeled hydrocarbons are produced. In the absence of chlorinated ethenes, however, lower con- centrations of many of the same hydrocarbons (methane and C2-C6 alkanes and alkenes) are also produced. Hardy and Gillham (1996

  18. Lack of Iron The release of wastes associated with nuclear

    E-Print Network [OSTI]

    . An international team of scientists conducted a study that used EMSL capabilities showed iron-bearing minerals that are naturally abundant in sediment can react with and immobilize contaminants such as technetium. The findings.12.010. Chromium Detoxification Hexavalent chromium is a major environmental contaminant. Researchers using ultra

  19. Electronic and Magnetization Dynamics of Cobalt Substituted Iron Oxide Nanocrystals

    E-Print Network [OSTI]

    Chen, Tai-Yen

    2011-02-22T23:59:59.000Z

    of photoexcited colloidal cobalt substituted iron oxide nanocrystals, CoxFe3-xO4, were investigated through transient absorption and pump-probe Faraday rotation measurements. In this dissertation, linearly polarized femtosecond optical pulses at 780 nm were used...

  20. Molten thermite teeming into an iron oxide particle bed

    SciTech Connect (OSTI)

    Tarbell, W.W.; Blose, R.E.; Arellano, F.E.

    1984-03-01T23:59:59.000Z

    The two particle bed tests employed 10-kg thermite melts (2700/sup 0/K) teemed into a bed of iron oxide particles. Objective was to investigate bed penetration, particle flotation and fracture, and heat flux partitioning. The results show that the hydraulic forces exerted by the melt did not immediately displace the bed. Bed penetration was by melting and absorbing of the particles with the major portion of the displaced iron oxide terminating in the alumina phase of the melt. The movement of the penetration front suggests the movement to be a series of melt/freeze/remelt processes. The large grain structure of the iron phase indicates that the cooling was slow and continuous. A coherent 1-cm-thick layer of iron oxide in contact with the melt was created by sintering of the particles. The particle size of the unaffected portions of the bed showed very little fracturing due to thermal stress and slightly over 7% particle growth due to sintering. The calculated heat flux values to the surrounding crucible structure suggest that the bed is effective in delaying and reducing the magnitude of the peak heat flux values.

  1. Reduction of Vinyl Chloride in Metallic Iron-Water Systems

    E-Print Network [OSTI]

    Deng, Baolin

    Reduction of Vinyl Chloride in Metallic Iron-Water Systems B A O L I N D E N G * Department to groundwater and soil contamination. In particular, VC can be produced as an intermediate in the reductive- lenging. Traditional "pump-and-treat" treatment systems have proven to be costly and ineffective in many

  2. Nanoparticulate bioavailable iron minerals in icebergs and glaciers R. RAISWELL

    E-Print Network [OSTI]

    Benning, Liane G.

    Nanoparticulate bioavailable iron minerals in icebergs and glaciers R. RAISWELL 1 , L. G. BENNING 1+ Raiswell et al. (2006, 2008) used high- resolution microscopy, combined with chemical extraction methods an important mineral signature for the chemistry of the subglacial environment, and that they are significant

  3. Preventing oxidation of iron sulfide minerals by polyethylene polyamines

    E-Print Network [OSTI]

    Belzile, Nelson

    processes of sulfide minerals still remains an important issue for both mineral extraction and environmentalPreventing oxidation of iron sulfide minerals by polyethylene polyamines Yu-Wei Chen a,*, Yuerong on the passivation of pyrite and pyrrhotite minerals. Polyethylene polyamines, such as triethylenetetramine (TETA

  4. Probing Active Galactic Nuclei with the Iron Line

    E-Print Network [OSTI]

    that the iron line profile around a Kerr black hole is wider due to additional gravitational red- shifting. Continuum components: 1. X-ray power law 2. Broad emission lines (Fe K) 3. Inverse compton reflection 4 spectrum. Panel b employs a power-law to model the spectrum. Panel c employs a power law and broad Gaussian

  5. Octadecylphosphonate (ODP) for corrosion inhibition of iron using

    E-Print Network [OSTI]

    Petta, Jason

    of corrosion include pipelines, mining facilities, oil and gas production sites, marine ships, hazmat storageOctadecylphosphonate (ODP) for corrosion inhibition of iron using the T-BAG technique Tiffany V · Cost of corrosion in the U.S. is $276 billion/year, (CC Technologies Laboratories, 2001) ­ Cost

  6. Oxide Dispersion Strengthened Iron Aluminide by CVD Coated Powders

    SciTech Connect (OSTI)

    Asit Biswas Andrew J. Sherman

    2006-09-25T23:59:59.000Z

    This I &I Category2 program developed chemical vapor deposition (CVD) of iron, aluminum and aluminum oxide coated iron powders and the availability of high temperature oxidation, corrosion and erosion resistant coating for future power generation equipment and can be used for retrofitting existing fossil-fired power plant equipment. This coating will provide enhanced life and performance of Coal-Fired Boilers components such as fire side corrosion on the outer diameter (OD) of the water wall and superheater tubing as well as on the inner diameter (ID) and OD of larger diameter headers. The program also developed a manufacturing route for readily available thermal spray powders for iron aluminide coating and fabrication of net shape component by powder metallurgy route using this CVD coated powders. This coating can also be applid on jet engine compressor blade and housing, industrial heat treating furnace fixtures, magnetic electronic parts, heating element, piping and tubing for fossil energy application and automotive application, chemical processing equipment , heat exchanger, and structural member of aircraft. The program also resulted in developing a new fabrication route of thermal spray coating and oxide dispersion strengthened (ODS) iron aluminide composites enabling more precise control over material microstructures.

  7. RECRYSTALLISATION AND MICROTEXTURE DEVELOPMENT IN AN ALUMINIUM-IRON ALLOY

    E-Print Network [OSTI]

    Cambridge, University of

    RECRYSTALLISATION AND MICROTEXTURE DEVELOPMENT IN AN ALUMINIUM-IRON ALLOY Nicola Deards and H of aluminium alloys is concerned with the development of crystallographic texture during deformation and heat.% alloy has been studied with a view to revealing the role of FeAl3 particles in the development

  8. The iron nutrition of tropical foliage plants

    E-Print Network [OSTI]

    Lang, Harvey Joe

    1986-01-01T23:59:59.000Z

    concentrations than green leaves, but the chlorotic leaves also had highez P concentrations. DeKock and Strmecki (45), studying the growth- promoting effect of a lignite, noted the significance of P in comparison with Fe. They found that in mustard a high P/Fe.... This hypothesis was supported by work by DeKock et al. (46) in which a very significant linear relationship was found between the active Fe fraction and the ratio of total P to total Fe. These relationships give meaningful differences between chlorotic...

  9. Fracture toughness studies of gray and ductile cast irons using a J-integral approach

    E-Print Network [OSTI]

    Floyd, Donna Lynne Woodall

    1981-01-01T23:59:59.000Z

    , and silicon in which more carbon is present than can be retained in solid solution in austenite at the eutectic temperature. In gray cast iron, the iron and carbon solidify as a eutectic structure whose two phases are graphite and iron. Gray iron usually... contains from 1. 7 to 4. 5% carbon and 1 to 3% silicon. 27 The normal microstructure of gray iron is a matrix of pearlite (ferrite and cementite) with the graphite flakes dispersed throughout. Among the properties that the flake graphite 28 in gray...

  10. Mossbauer Spectroscopy as a Probe of Magnetization Dynamics in the Linear Iron(I) and Iron(II) Complexes [Fe(C(SiMe3)3)2]1-/0

    E-Print Network [OSTI]

    Mossbauer Spectroscopy as a Probe of Magnetization Dynamics in the Linear Iron(I) and Iron States *S Supporting Information ABSTRACT: The iron-57 Mossbauer spectra of the linear, two. Because of the lifetime of the measurement (10-8 to 10-9 s), iron-57 Mossbauer spectros- copy yielded

  11. Defining work from operational principles

    E-Print Network [OSTI]

    R. Gallego; J. Eisert; H. Wilming

    2015-04-20T23:59:59.000Z

    In recent years we have witnessed a concentrated effort to make sense of thermodynamics for small-scale systems. One of the main difficulties is that, at the nano-scale, thermal fluctuations of energy in general render it conceptually difficult to distinguish work from heat. Despite of several attempts to resolve this issue, many of which inspired by quantum information theory, there is still remarkable little consensus on it. In this work, we attempt to define work in a strictly operational way. In our resource-theoretic approach, agents wish to agree upon how much work needs to be invested to effect a transition from one state of an arbitrary quantum work-storage device to another. We introduce basic operational principles, and deduce from them a strict set of mathematical properties that any reasonable function quantifying such work has to fulfil. One of those generalises strong sub-additivity, a key property in quantum information theory, to the domain of thermodynamics. We show that one work quantifier fulfilling all the required properties is the difference of the non-equilibrium free energy of the initial and final state of the work-storage system. More generally, for any work quantifier fulfilling the stated properties, we can derive a quantitative second law in the sense of bounding the work that can be performed using some non-equilibrium resource by the work that is needed to create it. We furthermore discuss the role of path dependence for work quantifiers and the connection to the concept of probability-distributions of work. Our mathematical results can be formulated abstractly and carry over to other resource theories than quantum thermodynamics.

  12. Iron Aerogel and Xerogel Catalysts for Fischer-Tropsch Synthesis of Diesel Fuel

    SciTech Connect (OSTI)

    Bali, S.; Huggins, F; Huffman, G; Ernst, R; Pugmire, R; Eyring, E

    2009-01-01T23:59:59.000Z

    Iron aerogels, potassium-doped iron aerogels, and potassium-doped iron xerogels have been synthesized and characterized and their catalytic activity in the Fischer-Tropsch (F-T) reaction has been studied. Iron aerogels and xerogels were synthesized by polycondensation of an ethanolic solution of iron(III) chloride hexahydrate with propylene oxide which acts as a proton scavenger for the initiation of hydrolysis and polycondensation. Potassium was incorporated in the iron aerogel and iron xerogel by adding aqueous K{sub 2}CO{sub 3} to the ethanolic solutions of the Fe(III) precursor prior to addition of propylene oxide. Fischer-Tropsch activities of the catalysts were tested in a fixed bed reactor at a pressure of 100 psi with a H{sub 2}:CO ratio of 2:1. Iron aerogels were found to be active for F-T synthesis, and their F-T activities increased on addition of a K containing promoter. Moessbauer spectroscopic data are consistent with an open, nonrigid iron(III) aerogel structure progressing to an iron carbide/metallic iron catalyst via agglomeration as the F-T synthesis proceeds in the course of a 35 h fixed bed reaction test.

  13. Use of bimodal carbon distribution in compacts for producing metallic iron nodules

    DOE Patents [OSTI]

    Iwasaki, Iwao

    2014-04-08T23:59:59.000Z

    A method for use in production of metallic iron nodules comprising providing a reducible mixture into a hearth furnace for the production of metallic iron nodules, where the reducible mixture comprises a quantity of reducible iron bearing material, a quantity of first carbonaceous reducing material of a size less than about 28 mesh of an amount between about 65 percent and about 95 percent of a stoichiometric amount necessary for complete iron reduction of the reducible iron bearing material, and a quantity of second carbonaceous reducing material with an average particle size greater than average particle size of the first carbonaceous reducing material and a size between about 3 mesh and about 48 mesh of an amount between about 20 percent and about 60 percent of a stoichiometric amount of necessary for complete iron reduction of the reducible iron bearing material.

  14. Use of bimodal carbon distribution in compacts for producing metallic iron nodules

    DOE Patents [OSTI]

    Iwasaki, Iwao

    2012-10-16T23:59:59.000Z

    A method for use in production of metallic iron nodules comprising providing a reducible mixture into a hearth furnace for the production of metallic iron nodules, where the reducible mixture comprises a quantity of reducible iron bearing material, a quantity of first carbonaceous reducing material of a size less than about 28 mesh of an amount between about 65 percent and about 95 percent of a stoichiometric amount necessary for complete iron reduction of the reducible iron bearing material, and a quantity of second carbonaceous reducing material with an average particle size greater than average particle size of the first carbonaceous reducing material and a size between about 3 mesh and about 48 mesh of an amount between about 20 percent and about 60 percent of a stoichiometric amount of necessary for complete iron reduction of the reducible iron bearing material.

  15. THE REMEDIATION OF ABANDONED IRON ORE MINE SUBSIDENCE IN ROCKAWAY TONWSHIP, NEW JERSEY

    SciTech Connect (OSTI)

    Gary Gartenberg

    2003-02-01T23:59:59.000Z

    This report represents the tenth Semi-Annual Technical Progress Report issued in connection with the subsidence remediation projects undertaken by Rockaway Township in Morris County, New Jersey. This report provides a summary of the major project work accomplished during this reporting period and contemplated for the subsequent reporting period. This report is issued as part of the project reporting provisions set forth in the Cooperators Agreement between the United States Government-Department of Energy, and Rockaway Township. The purpose of the Cooperators Agreement is for the Department of Energy to provide technical and financial assistance in a coordinated effort with Rockaway Township to develop and implement a multi-phased plan to remediate ground stability problems associated with abandoned mining activity. Primarily during the 1800's, extensive iron ore mining and prospecting was undertaken in Rockaway Township, part of the Dover District Mining region in Morris County. The abandoned mining activity has resulted in public safety hazards associated with ground collapse and surface subsidence features evolving in both developed and undeveloped areas within Rockaway Township. At the Green Pond Mine site at the Township Compost Storage Facility, engineering continued during this reporting period toward development of the Construction Plans and Technical Specifications for the remediation work. At the Mt. Hope Road subsidence, surface monitoring was conducted periodically at the work area and adjacent areas after the January 2000 construction effort.

  16. Work For Others (Non-Department of Energy Funded Work)

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2001-01-03T23:59:59.000Z

    Work for Others (WFO) is the performance of work for non-Department of Energy (DOE) entities by DOE/National Nuclear Security Administration (NNSA) and/or their respective contractor personnel or the use of DOE/NNSA facilities that is not directly funded by DOE appropriations. WFO has the following objectives. Cancels DOE O 481.1.

  17. Work For Others (Non-Department of Energy Funded Work)

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2001-09-28T23:59:59.000Z

    Work for Others (WFO) is the performance of work for non-Department of Energy (DOE) entities by DOE/National Nuclear Security Administration (NNSA) and/or their respective contractor personnel or the use of DOE/NNSA facilities that is not directly funded by DOE appropriations. Cancels DOE O 481.1A.

  18. Social Work and Women's Studies Social work engages with individuals,

    E-Print Network [OSTI]

    and Women's Studies can lead to careers in child and youth protection services, women's shelters, sexualSocial Work and Women's Studies Social work engages with individuals, families, communities a positive difference in the lives of others. In your fourth year, you will apply what you have learned

  19. Effect of thermal treatment on coke reactivity and catalytic iron mineralogy

    SciTech Connect (OSTI)

    Byong-chul Kim; Sushil Gupta; David French; Richard Sakurovs; Veena Sahajwalla [University of New South Wales, Sydney, NSW (Australia). Centre for Sustainable Materials Research and Technology

    2009-07-15T23:59:59.000Z

    Iron minerals in coke can catalyze its gasification and may affect coke behavior in the blast furnace. The catalytic behavior of iron depends largely upon the nature of the iron-bearing minerals. To determine the mineralogical changes that iron could undergo in the blast furnace, cokes made from three coals containing iron present in different mineral forms (clays, carbonates, and pyrite) were examined. All coke samples were heat-treated in a horizontal furnace at 1373, 1573, and 1773 K and then gasified with CO{sub 2} at 1173 K in a fixed bed reactor (FBR). Coke mineralogy was characterized using quantitative X-ray diffraction (XRD) analysis of coke mineral matter prepared by low-temperature ashing (LTA) and field emission scanning electron microscopy combined with energy dispersive X-ray analysis (FESEM/EDS). The mineralogy of the three cokes was most notably distinguished by differing proportions of iron-bearing phases. During heat treatment and subsequent gasification, iron-containing minerals transformed to a range of minerals but predominantly iron-silicides and iron oxides, the relative amounts of which varied with heat treatment temperature and gasification conditions. The relationship between initial apparent reaction rate and the amount of catalytic iron minerals - pyrrhotite, metallic iron, and iron oxides - was linear and independent of heat treatment temperature at total catalyst levels below 1 wt %. The study showed that the coke reactivity decreased with increasing temperature of heat treatment due to decreased levels of catalytic iron minerals (largely due to formation of iron silicides) as well as increased ordering of the carbon structure. The study also showed that the importance of catalytic mineral matter in determining reactivity declines as gasification proceeds. 37 refs., 13 figs., 7 tabs.

  20. Coping with Hot Work Environments

    E-Print Network [OSTI]

    Smith, David

    2005-04-28T23:59:59.000Z

    exposed to these conditions. A hot work environment can impair safety and health. Both workers and their employers are responsi- ble for taking steps to prevent heat stress in the work- place. How Your Body Handles Heat Humans are warm-blooded, which... evaporation. Wiping sweat from the skin with a cloth also prevents cooling from evaporation. In hot, humid conditions, hard work becomes harder. The sweat glands release moisture and essential David W. Smith, Extension Safety Program The Texas A...

  1. Radiation Safety Work Control Form

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

    Radiation Safety Work Control Form (see instructions on pg-3) Rev. May 2014 Area: Form : Date: Preliminary Applicability Screen: (a) Will closing the beam line injection stoppers...

  2. Infrared Thermography (IRT) Working Group

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

    Infrared Thermography (IRT) Working Group Sco McWilliams U.S. Photovoltaic Manufacturing Consor;um (PVMC) Infrared Thermography Infrared Thermography (IRT) has been demonstrated...

  3. Surveillance Guides - Work Control Process

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

    established and is utilized to effectively plan, authorize, and execute the identified work for the facility or activity. Both workers and management demonstrate a commitment to...

  4. INL @ work: Nuclear Reactor Operator

    SciTech Connect (OSTI)

    Russell, Patty

    2008-01-01T23:59:59.000Z

    INL @ work features jobs at the Idaho National Laboratory. Learn more about careers and energy research at INL's facebook site http://www.facebook.com/idahonationallaboratory

  5. Construction Work in Progress (Kansas)

    Broader source: Energy.gov [DOE]

    This Act allows nuclear power plants to qualify for recovery of Construction Work in Progress (CWIP) and other preconstruction expenditures in rates. Previously, nuclear power plants were excluded...

  6. INL @ work: Nuclear Reactor Operator

    ScienceCinema (OSTI)

    Russell, Patty

    2013-05-28T23:59:59.000Z

    INL @ work features jobs at the Idaho National Laboratory. Learn more about careers and energy research at INL's facebook site http://www.facebook.com/idahonationallaboratory

  7. work

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

    to 9,500 after the first quarter of this year through a reduction in the support service contract. Fund management followed administrative controls that met the expectations...

  8. FY 1994 Annual Work Plan

    SciTech Connect (OSTI)

    Not Available

    1993-10-01T23:59:59.000Z

    This is the third Office of Inspector General (OIG)Annual Work Plan. Its purpose is to summarize work completed in Fiscal Year (FY) 1993, identify ongoing projects from previous fiscal years which the OIG intends to continue into FY 1994, and announce planned projects which the OIG intends to begin in FY 19994.

  9. Working With Radiation For Research

    E-Print Network [OSTI]

    Jia, Songtao

    working with radiation The radiation badge is not a protective device It cannot shield you from Negative Exponential Protection From Radiation #12;18 Time Distance Shielding Basic Principles #121 Working With Radiation For Research Thomas Cummings Junior Physicist Environmental Health

  10. Hazardous Working Policy November 2012

    E-Print Network [OSTI]

    Doran, Simon J.

    for: The management of University workers performing hazardous tasks or working in hazardous areas;2 Hazardous Areas: are areas where a University worker may be exposed to risks that are considered greater1 Hazardous Working Policy November 2012 Introduction The University of Surrey acknowledges

  11. Oxidation, carburization and/or sulfidation resistant iron aluminide alloy

    DOE Patents [OSTI]

    Sikka, Vinod K.; Deevi, Seetharama C.; Fleischhauer, Grier S.; Hajaligol, Mohammad R.; Lilly, Jr., A. Clifton

    2003-08-19T23:59:59.000Z

    The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, .ltoreq.1% Cr and either .gtoreq.0.05% Zr or Zro.sub.2 stringers extending perpendicular to an exposed surface of the heating element or .gtoreq.0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Zr, .ltoreq.1% C, .ltoreq.0.1% B. .ltoreq.30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, .ltoreq.1% oxygen, .ltoreq.3% Cu, balance Fe.

  12. Iron aluminide useful as electrical resistance heating elements

    DOE Patents [OSTI]

    Sikka, Vinod K. (Oak Ridge, TN); Deevi, Seetharama C. (Oak Ridge, TN); Fleischhauer, Grier S. (Midlothian, VA); Hajaligol, Mohammad R. (Richmond, VA); Lilly, Jr., A. Clifton (Chesterfield, VA)

    1999-01-01T23:59:59.000Z

    The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, .ltoreq.1% Cr and either .gtoreq.0.05% Zr or ZrO.sub.2 stringers extending perpendicular to an exposed surface of the heating element or .gtoreq.0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Zr, .ltoreq.1% C, .ltoreq.0.1% B, .ltoreq.30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, .ltoreq.1% oxygen, .ltoreq.3% Cu, balance Fe.

  13. Iron aluminide useful as electrical resistance heating elements

    DOE Patents [OSTI]

    Sikka, Vinod K. (Oak Ridge, TN); Deevi, Seetharama C. (Oak Ridge, TN); Fleischhauer, Grier S. (Midlothian, VA); Hajaligol, Mohammad R. (Richmond, VA); Lilly, Jr., A. Clifton (Chesterfield, VA)

    1997-01-01T23:59:59.000Z

    The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, .ltoreq.1% Cr and either .gtoreq.0.05% Zr or ZrO.sub.2 stringers extending perpendicular to an exposed surface of the heating element or .gtoreq.0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Zr, .ltoreq.1% C, .ltoreq.0.1% B, .ltoreq.30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, .ltoreq.1% oxygen, .ltoreq.3% Cu, balance Fe.

  14. Iron aluminide useful as electrical resistance heating elements

    DOE Patents [OSTI]

    Sikka, Vinod K. (Oak Ridge, TN); Deevi, Seetharama C. (Oak Ridge, TN); Fleischhauer, Grier S. (Midlothian, VA); Hajaligol, Mohammad R. (Richmond, VA); Lilly, Jr., A. Clifton (Chesterfield, VA)

    2001-01-01T23:59:59.000Z

    The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, .ltoreq.1% Cr and either .gtoreq.0.05% Zr or ZrO.sub.2 stringers extending perpendicular to an exposed surface of the heating element or .gtoreq.0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Zr, .ltoreq.1% C, .ltoreq.0.1% B, .ltoreq.30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, .ltoreq.1% oxygen, .ltoreq.3% Cu, balance Fe.

  15. Iron aluminide useful as electrical resistance heating elements

    DOE Patents [OSTI]

    Sikka, V.K.; Deevi, S.C.; Fleischhauer, G.S.; Hajaligol, M.R.; Lilly, A.C. Jr.

    1997-04-15T23:59:59.000Z

    The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, {<=}1% Cr and either {>=}0.05% Zr or ZrO{sub 2} stringers extending perpendicular to an exposed surface of the heating element or {>=}0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, {<=}2% Ti, {<=}2% Mo, {<=}1% Zr, {<=}1% C, {<=}0.1% B, {<=}30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, {<=}1% rare earth metal, {<=}1% oxygen, {<=}3% Cu, balance Fe. 64 figs.

  16. Unified Picture for Magnetic Correlations in Iron-Based Superconductors

    SciTech Connect (OSTI)

    Yin, W.G.; Lee, E.-C.; Ku, W.

    2010-09-02T23:59:59.000Z

    The varying metallic antiferromagnetic correlations observed in iron-based superconductors are unified in a model consisting of both itinerant electrons and localized spins. The decisive factor is found to be the sensitive competition between the superexchange antiferromagnetism and the orbital-degenerate double-exchange ferromagnetism. Our results reveal the crucial role of Hund's rule coupling for the strongly correlated nature of the system and suggest that the iron-based superconductors are closer kin to manganites than cuprates in terms of their diverse magnetism and incoherent normal-state electron transport. This unified picture would be instrumental for exploring other exotic properties and the mechanism of superconductivity in this new class of superconductors.

  17. The world`s first commercial iron carbide plant

    SciTech Connect (OSTI)

    Prichard, L.C.; Schad, D.

    1995-12-01T23:59:59.000Z

    The paper traces the development of Nucor`s investigation of clean iron unit processes, namely, direct reduction, and the decision to build and operate the world`s first commercial iron carbide plant. They first investigated coal based processes since the US has abundant coal reserves, but found a variety of reasons for dropping the coal-based processes from further consideration. A natural gas based process was selected, but the failure to find economically priced gas supplies stopped the development of a US based venture. It was later found that Trinidad had economically priced and abundant supplies of natural gas, and the system of government, the use of English language, and geographic location were also ideal. The cost estimates required modification of the design, but the plant was begun in April, 1993. Start-up problems with the plant are also discussed. Production should commence shortly.

  18. Iron aluminide alloy container for solid oxide fuel cells

    DOE Patents [OSTI]

    Judkins, Roddie Reagan (Knoxville, TN); Singh, Prabhakar (Export, PA); Sikka, Vinod Kumar (Oak Ridge, TN)

    2000-01-01T23:59:59.000Z

    A container for fuel cells is made from an iron aluminide alloy. The container alloy preferably includes from about 13 to about 22 weight percent Al, from about 2 to about 8 weight percent Cr, from about 0.1 to about 4 weight percent M selected from Zr and Hf, from about 0.005 to about 0.5 weight percent B or from about 0.001 to about 1 weight percent C, and the balance Fe and incidental impurities. The iron aluminide container alloy is extremely resistant to corrosion and metal loss when exposed to dual reducing and oxidizing atmospheres at elevated temperatures. The alloy is particularly useful for containment vessels for solid oxide fuel cells, as a replacement for stainless steel alloys which are currently used.

  19. Iron aluminide alloys with improved properties for high temperature applications

    DOE Patents [OSTI]

    McKamey, Claudette G. (Knoxville, TN); Liu, Chain T. (Oak Ridge, TN)

    1990-01-01T23:59:59.000Z

    An improved iron aluminide alloy of the DO.sub.3 type that has increased room temperature ductility and improved high elevated temperature strength. The alloy system further is resistant to corrosive attack in the environments of advanced energy corrosion systems such as those using fossil fuels. The resultant alloy is relatively inexpensive as contrasted to nickel based and high nickel steels currently utilized for structural components. The alloy system consists essentially of 26-30 at. % aluminum, 0.5-10 at. % chromium, 0.02-0.3 at. % boron plus carbon, up to 2 at. % molybdenum, up to 1 at. % niobium, up to 0.5 at. % zirconium, up to 0.1 at. % yttrium, up to 0.5 at. % vanadium and the balance iron.

  20. Microstructure of thin-wall ductile iron castings

    SciTech Connect (OSTI)

    Dogan, Omer N.; Schrems, Karol K.; Hawk, Jeffrey A.

    2003-01-01T23:59:59.000Z

    Step plate castings with section thicknesses of 1.5 mm to 6 mm and individual (single) castings with section thicknesses of 2 mm to 6 mm were produced using a ductile iron chemistry. Microstructures of these thin wall ductal iron castings were characterized quantitatively using an image analyzer. Matrix structure (amount of pearlite, ferrite, and massive carbides) and graphite structure (volume fraction, nodule size, nodule content, and nodularity) were investigated as a function of section thickness. Pearlite content, nodule count, and nodularity increased with decreasing section thickness, whereas the nodule size decreased. Nodule content exceeded 2000 nodules per mm{sup 2} at the thinnest sections. Statistical analysis was performed to investigate the effect of casting parameters on the microstructure.

  1. Iron aluminide alloys with improved properties for high temperature applications

    DOE Patents [OSTI]

    McKamey, C.G.; Liu, C.T.

    1990-10-09T23:59:59.000Z

    An improved iron aluminide alloy of the DO[sub 3] type is described that has increased room temperature ductility and improved high elevated temperature strength. The alloy system further is resistant to corrosive attack in the environments of advanced energy conversion systems such as those using fossil fuels. The resultant alloy is relatively inexpensive as contrasted to nickel based and high nickel steels currently utilized for structural components. The alloy system consists essentially of 26--30 at. % aluminum, 0.5--10 at. % chromium, 0.02--0.3 at. % boron plus carbon, up to 2 at. % molybdenum, up to 1 at. % niobium, up to 0.5 at. % zirconium, up to 0.1 at. % yttrium, up to 0.5 at. % vanadium and the balance iron. 3 figs.

  2. Radiological Work Planning and Procedures

    E-Print Network [OSTI]

    Kurtz, J E

    2000-01-01T23:59:59.000Z

    Each facility is tasked with maintaining personnel radiation exposure as low as reasonably achievable (ALARA). A continued effort is required to meet this goal by developing and implementing improvements to technical work documents (TWDs) and work performance. A review of selected TWDs from most facilities shows there is a need to incorporate more radiological control requirements into the TWD. The Radioactive Work Permit (RWP) provides a mechanism to place some of the requirements but does not provide all the information needed by the worker as he/she is accomplishing the steps of the TWD. Requiring the engineers, planners and procedure writers to put the radiological control requirements in the work steps would be very easy if all personnel had a strong background in radiological work planning and radiological controls. Unfortunately, many of these personnel do not have the background necessary to include these requirements without assistance by the Radiological Control organization at each facility. In add...

  3. Assessing Arsenic Removal By Zero-Valent Iron Under

    E-Print Network [OSTI]

    6 8 10 12 14 .5 0 .5 1 pH Eh(volts) SO4 -- HS - H2S(aq) HSO4 - 20C Dell Fri Feb 08 2008 DiagramSO4Assessing Arsenic Removal By Zero-Valent Iron Under Various Water Quality Conditions Paul Pepler and operate. #12;7 Best Available Technologies for As Removal (USEPA 2003) Ion exchange Activated alumina

  4. Modeling non-heme iron proteins and Yukiko Mishina

    E-Print Network [OSTI]

    He, Chuan

    with the use of terphenyl-based carboxylate ligands and the development of several iron-based reagents@uchicago.edu Current Opinion in Chemical Biology 2004, 8:201208 This review comes from a themed issue on Bioinorganic,4,8,11-tetraazacyclotetradecane MMO methane monooxygenase OTf CF3SO3 PaPy3H N-[N,N-bis(2-pyridylmethyl)aminoethyl]-2

  5. Bifunctional air electrodes containing elemental iron powder charging additive

    DOE Patents [OSTI]

    Liu, Chia-tsun (Monroeville, PA); Demczyk, Brian G. (Rostrover Township, Westmoreland County, PA); Gongaware, Paul R. (Penn Township, Westmoreland County, PA)

    1982-01-01T23:59:59.000Z

    A bifunctional air electrode for use in electrochemical energy cells is made, comprising a hydrophilic layer and a hydrophobic layer, where the hydrophilic layer essentially comprises a hydrophilic composite which includes: (i) carbon; (ii) elemental iron particles having a particle size of between about 25 microns and about 700 microns diameter; (iii) an oxygen evolution material; (iv) a nonwetting agent; and (v) a catalyst, where at least one current collector is formed into said composite.

  6. Pressure Effects on Two Superconducting Iron-based Families

    SciTech Connect (OSTI)

    Safa-Sefat, Athena [ORNL

    2011-01-01T23:59:59.000Z

    Insight into the mechanism of high-temperature superconductivity can be gained by pressure-dependent studies of structural, thermodynamics and transport data. The role of pressure may be complicated by the level of hydrostaticity. High-pressure studies on two iron-based families of RFeAsO (R = rare-earth metals) and AFe{sub 2}As{sub 2} (A = alkaline-earth metals) are reviewed here.

  7. Low resistivity contact to iron-pnictide superconductors

    DOE Patents [OSTI]

    Tanatar, Makariy; Prozorov, Ruslan; Ni, Ni; Bud'ko, Sergey; Canfield, Paul

    2013-05-28T23:59:59.000Z

    Method of making a low resistivity electrical connection between an electrical conductor and an iron pnictide superconductor involves connecting the electrical conductor and superconductor using a tin or tin-based material therebetween, such as using a tin or tin-based solder. The superconductor can be based on doped AFe.sub.2As.sub.2, where A can be Ca, Sr, Ba, Eu or combinations thereof for purposes of illustration only.

  8. Zinc sorption by iron oxides and soil samples

    E-Print Network [OSTI]

    Yli-Halla, Markku Juhani

    1989-01-01T23:59:59.000Z

    (Head of Department) May 1989 ABSTRACT Zinc Sorption by Iron Oxides and Soil Samples. (May 1989) Markku Juhani Yli-Halla, M. S. University of Helsinki, Finland Chair of Advisory Committee: Dr. Richard H. Loeppert Zn sorption by synthetic Fe oxide... and soil samples was studied. The purpose was to examine the effect of crystallinity and adsorbed silica on Zn adsorption by synthetic Fe oxide using goethite and ferrihydrite as test materials. Zn sorption by acid soil samples from Finland and a...

  9. Coal Fly Ash as a Source of Iron in Atmospheric Dust

    SciTech Connect (OSTI)

    Chen, Haihan; Laskin, Alexander; Baltrusaitis, Jonas; Gorski, Christopher A.; Scherer, Michelle; Grassian, Vicki H.

    2012-01-18T23:59:59.000Z

    Anthropogenic coal fly ash aerosols may represent a significant source of bioavailable iron in the open ocean. Few measurements have been made to compare the solubility of atmospheric iron from anthropogenic aerosols and other sources. We report an investigation of the iron dissolution of three fly ash samples in acidic aqueous solutions and compare the solubilities with that of Arizona test dust, a reference material of mineral dust. The effects of pH, cloud processing, and solar irradiation on Fe solubility were explored. Similar to previously reported results on mineral dust, iron in aluminosilicate phases provide predominant dissolved iron compared with iron in oxides. Iron solubility of fly ash is higher than Arizona test dust, especially at the higher pH conditions investigated. Simulated atmospheric processing elevates iron solubility due to significant changes in the morphology aluminosilicate glass, a dominantly material in fly ash particle. Iron continuously releases into the aqueous solution as fly ash particles break up into smaller fragments. The assessment of dissolved atmospheric iron deposition fluxes, and their effect on the biogeochemistry at ocean surface should be constrained by taking into account the source, environment pH, Fe speciation, and solar radiation.

  10. The development of precipitated iron catalysts with improved stability

    SciTech Connect (OSTI)

    Not Available

    1990-01-01T23:59:59.000Z

    The goal of this program is to identify the chemical principles governing the deactivation of precipitated iron catalysts during Fischer-Tropsch synthesis and to use these chemical principles in the design of catalysts suitable for slurry reactors. This report covers testing an iron catalyst. During the last quarter, a new precipitated iron catalyst was prepared and tested in the slurry autoclave reactor at various conditions. This catalyst did not noticeably deactivate during 1250 hours of testing. This quarter, the test was extended to include performance evaluations at different conversion levels ranging from 35 to 88% at 265 and 275{degree}C. The conversion levels were varied by changing the feed rate. The catalytic performance at different conversion intervals was then integrated to approximately predict performance in a bubble column reactor. The run was shut down at the end of 1996 hours because of a 24-hour-power outage. When the power was back on, the run was restarted from room temperature. Catalytic performance during the first 300 hours after the restart-up was monitored. Overall product distributions are being tabulated as analytical laboratory data are obtained. 34 figs., 3 tabs.

  11. Blood and hair lead in children with different extents of iron deficiency in Karachi

    SciTech Connect (OSTI)

    Ataur Rahman, Muhammad; Rahman, Bushra [Karachi Institute of Biotechnology and Genetic Engineering, University of Karachi, Karachi-75270 (Pakistan)] [Karachi Institute of Biotechnology and Genetic Engineering, University of Karachi, Karachi-75270 (Pakistan); Saeed Ahmad, Muhammad [School of Healthcare Science, Manchester Metropolitan University, Manchester M1 5GD (United Kingdom)] [School of Healthcare Science, Manchester Metropolitan University, Manchester M1 5GD (United Kingdom); Blann, Andrew [Department of Medicine, City Hospital, Birmingham B18 7QH, United Kingdom. (United Kingdom)] [Department of Medicine, City Hospital, Birmingham B18 7QH, United Kingdom. (United Kingdom); Ahmed, Nessar, E-mail: N.Ahmed@mmu.ac.uk [School of Healthcare Science, Manchester Metropolitan University, Manchester M1 5GD (United Kingdom)] [School of Healthcare Science, Manchester Metropolitan University, Manchester M1 5GD (United Kingdom)

    2012-10-15T23:59:59.000Z

    Childhood iron deficiency has a high incidence in Pakistan. Some but not all studies have shown that dietary iron deficiency may cause increased absorption of lead as both compete for the same transporters in the small intestine. Therefore, children in Pakistan, residing in heavily polluted cities like Karachi may be prone to lead poisoning. This hypothesis was tested by investigating blood and hair lead concentrations in children from Karachi who were divided into four groups of iron status; normal, borderline iron deficiency, iron deficiency and iron deficiency anaemia. A prospective observational study was conducted where 269 children were categorized into four groups of iron status using the World Health Organization criteria and one based on soluble transferrin receptor measurements. Blood iron status was determined using a full blood count, serum iron, ferritin, transferrin saturation and soluble transferrin receptor measurements. Blood lead was determined by graphite atomic absorption spectroscopy, whereas hair lead was assessed using an inductively coupled plasma atomic emission spectroscopy technique. Blood lead concentrations were significantly higher in children with iron deficiency anaemia (mean [95% confidence intervals] were 24.9 [22.6-27.2] {mu}g/dL) compared to those with normal iron status (19.1 [16.8-21.4] {mu}g/dL) using WHO criteria. In contrast, hair lead content was not significantly different in children of different iron status. Our findings reinforce the importance of not only reducing environmental lead pollution but also the development of national health strategies to reduce childhood iron deficiency in Pakistan.

  12. Work for Others (Non-Department of Energy Funded Work)

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2005-01-24T23:59:59.000Z

    Work for Others is the performance of work for non-Department of Energy (DOE) entities by DOE/National Nuclear Security Administration (NNSA) and/or their respective contractor personnel or the use of DOE/NNSA facilities that is not directly funded by DOE appropriations. Cancels DOE O 481.1B. Certified 1-13-11. Admin Chg 1, dated 3-14-11.

  13. Why Aid Does Work Aid works, when it is practical, targeted, science-based and measurable.

    E-Print Network [OSTI]

    diseases such as polio, diphtheria, and measles. These clear aid triumphs have saved the lives of millions Africa finally to escape from the trap of extreme poverty. Ironically, when under-financed and flawed aid

  14. Model atmospheres and X-ray spectra of iron-rich bursting neutron stars. II. Iron rich Comptonized Spectra

    E-Print Network [OSTI]

    A. Majczyna; J. Madej; P. C. Joss; A. Rozanska

    2004-12-28T23:59:59.000Z

    This paper presents the set of plane-parallel model atmosphere equations for a very hot neutron star (X-ray burst source). The model equations assume both hydrostatic and radiative equilibrium, and the equation of state of an ideal gas in local thermodynamic equilibrium (LTE). The equation of radiative transfer includes terms describing Compton scattering of photons on free electrons in fully relativistic thermal motion, for photon energies approaching m_e *c^2. Model equations take into account many bound-free and free-free energy-dependent opacities of hydrogen, helium, and the iron ions, and also a dozen bound-bound opacities for the highest ions of iron. We solve model equations by partial linearisation and the technique of variable Eddington factors. Large grid of H-He-Fe model atmospheres of X-ray burst sources has been computed for 10^7 neutron stars from observational data.

  15. Slurry phase iron catalysts for indirect coal liquefaction. Second semi-annual progress report, January 5, 1996--July 4, 1996

    SciTech Connect (OSTI)

    Datye, A.K.

    1996-08-02T23:59:59.000Z

    During this period, work was continued on understanding the attrition of precipitated iron catalysts and work initiated on synthesizing catalysts containing silica binders. Use of a sedigraph particle size analyzer with an ultrasonic probe provides a simple method to test the strength of catalyst agglomerates, allowing the strength comparison of silica and hematite catalysts (the former is considerably stronger). Study of Fe/silica interactions was continued. Addition of a colloidal silica precursor to calcined Fe{sub 2}O{sub 3} catalyst had no detrimental effect on reducibility of the hematite to {alpha}-Fe. XRD and electron microscopy will be used to analyze the crystal structure and types of C present in samples from long Fischer-Tropsch runs.

  16. Mssbauer study of metallic iron and iron oxide nanoparticles having environmental purifying ability

    SciTech Connect (OSTI)

    Kubuki, Shiro, E-mail: kubuki@tmu.ac.jp; Watanabe, Yuka, E-mail: kubuki@tmu.ac.jp; Akiyama, Kazuhiko, E-mail: kubuki@tmu.ac.jp [Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachi-Oji, Tokyo 192-0397 (Japan); Risti?, Mira; Krehula, Stjepko [Division of Materials Chemistry, Ru?er Bokovi? Institute, P. O. Box 180, Zagreb 10002 (Croatia); Homonnay, Zoltn; Kuzmann, Ern? [Institute of Chemistry, Etvs Lornd University, P.O. Box 32, 1512 Budapest (Hungary); Nishida, Tetsuaki [Department of Biological and Environmental Chemistry, Faculty of Humanity-Oriented Science and Engineering, Kinki University, 11-6 Kayanomori, Iizuka, Fukuoka 820-8555 (Japan)

    2014-10-27T23:59:59.000Z

    A relationship between local structure and methylene blue (MB) decomposing ability of nanoparticles (NPs) of metallic iron (Fe{sup 0}) and maghemite (??Fe{sub 2}O{sub 3}) was investigated by {sup 57}Fe Mssbauer spectroscopy, X-ray diffractometry and UV-visible light absorption spectroscopy. ??Fe{sub 2}O{sub 3} NPs were successfully prepared by mixing (NH{sub 4}){sub 2}Fe(SO{sub 4}){sub 2}?6H{sub 2}O (Mohr's salt) and (NH{sub 4}){sub 3}Fe(C{sub 2}O{sub 4}){sub 3}?3H{sub 2}O aqueous solution at 30 C for 1 h, while those of Fe{sup 0} were obtained by the reduction of Mohr's salt with NaBH{sub 4}. From the Scherrer's equation, the smallest crystallite sizes of ??Fe{sub 2}O{sub 3} NPs and Fe{sup 0} NPs were determined to be 9.7 and 1.5 nm, respectively. {sup 57}Fe Mssbauer spectrum of ??Fe{sub 2}O{sub 3} NPs consists of a relaxed sextet with isomer shift (?) of 0.33{sub 0.01} mm s{sup ?1}, internal magnetic field (H{sub int}) of 25.8{sub 0.5} T, and linewidth (?) of 0.62{sub 0.04} mm s{sup ?1}. {sup 57}Fe Mssbauer spectrum of Fe{sup 0} NP is mainly composed of a sextet having ?, ?, and H{sub int} of 0.00{sub 0.01} mm s{sup ?1} 0.45{sub 0.01} mm s{sup ?1}, and 22.8{sub 0.1} T, respectively. A bleaching test of the mixture of Fe{sup 0} and ??Fe{sub 2}O{sub 3} NPs (3:7 ratio, 100 mg) in MB aqueous solution (20 mL) for 6 h showed a remarkable decrease of MB concentration with the first-order rate constant (k{sub MB}) of 6.7 10{sup ?1} h{sup ?1}. This value is larger than that obtained for the bleaching test using bulk Fe{sup 0}+??Fe{sub 2}O{sub 3} (3:7) mixture (k{sub MB}?=?6.510{sup ?3}h{sup ?1}). These results prove that MB decomposing ability is enhanced by the NPs mixture of Fe{sub 0} and ??Fe{sub 2}O{sub 3}.

  17. RCRA corrective action: Work plans

    SciTech Connect (OSTI)

    Not Available

    1995-02-01T23:59:59.000Z

    This Information Brief describes the work plans that owners/operators may have to prepare in conjunction with the performance of corrective action for compliance with RCRA guidelines. In general, the more complicated the performance of corrective action appears from the remedial investigation and other analyses, the more likely it is that the regulator will impose work plan requirements. In any case, most owner/operators will prepare work plans in conjunction with the performance of corrective action processes as a matter of best engineering management practices.

  18. Studies on the reduction kinetics of hematite iron ore pellets with noncoking coals for sponge iron plants

    SciTech Connect (OSTI)

    Kumar, M.; Mohapatra, P.; Patel, S.K. [National Institute of Technology, Rourkela (India). Dept. of Mechanical Engineering

    2009-07-01T23:59:59.000Z

    In the present investigation, fired pellets were made by mixing hematite iron ore fines of -100, -16+18, and -8+10 mesh size in different ratios and studies on their reduction kinetics in Lakhanpur, Orient OC-2 and Belpahar coals were carried out at temperatures ranging from 850{sup o}C to 1000{sup o}C with a view toward promoting the massive utilization of fines in ironmaking. The rate of reduction in all the fired iron ore pellets increased markedly with an increase in temperature up to 1000{sup o}C, and it was more intense in the first 30min. The values of activation energy, calculated from integral and differential approaches, for the reduction of fired pellets (prepared from iron ore fines of -100 mesh size) in coals were found to be in the range 131-148 and 130-181 kJ mol{sup -1} (for =0.2 to 0.8), indicating the process is controlled by a carbon gasification reaction. The addition of selected larger size particles in the matrix of -100 mesh size fines up to the extent studied decreased the activation energy and slightly increased the reduction rates of resultant fired pellets. In comparison to coal, the reduction of fired pellets in char was characterized by significantly lower reduction rates and higher activation energy.

  19. Utility Security & Resiliency: Working Together

    Broader source: Energy.gov [DOE]

    Presentationgiven at the Federal Utility Partnership Working Group (FUPWG) Fall 2008 meetingdiscusses Edison Electric Institute (EEI), including its key security objectives, key activities, cybersecurity activities, and spare transformer equipment program (STEP).

  20. Recovery Act Funds at Work

    Broader source: Energy.gov [DOE]

    Funds from the American Recovery and Reinvestment Act of 2009 (Recovery Act) are being put to work to improve safety, reliability, and service in systems across the country. Here are case studies from a variety of Recovery Act programs.

  1. FY 1994 Annual Work Plan

    SciTech Connect (OSTI)

    Not Available

    1993-09-30T23:59:59.000Z

    In accordance with the Inspector General`s Strategic Planning Policy directive, the Office of Inspector General (OIG) annually updates its Strategic Plan with budgetary and program guidance for the next fiscal year. The program guidance identifies and establishes priorities for OIG coverage of important DOE issues and operations, provides the basis for assigning OIG resources, and is the source for issues covered in Assistant Inspectors General annual work plans. The Office of the Assistant Inspector General for Audits (AIGA) publishes an Annual Work Plan in September of each year. The plan includes the OIG program guidance and shows the commitment of resources necessary to accomplish the assigned work and meet our goals. The program guidance provides the framework within which the AIGA work will be planned and accomplished. Audits included in this plan are designed to help insure that the requirements of our stakeholders have been considered and blended into a well balanced audit program.

  2. CSREES Nutrient Management Working Meeting

    E-Print Network [OSTI]

    planning process Nutrient management training P-Indexes and tools developed Educational materials #12Welcome CSREES Nutrient Management Working Meeting May 4 and 5, 2004 Atlanta, GA #12;University Objectives Information Sharing Among States Nutrient management regulations Nutrient management

  3. THE REMEDIATION OF ABANDONED IRON ORE MINE SUBSIDENCE IN ROCKAWAY TOWNSHIP, NEW JERSEY

    SciTech Connect (OSTI)

    Gary Gartenberg, P.E., P.P.

    2001-04-01T23:59:59.000Z

    This report represents the sixth Semi-Annual Technical Progress Report issued in connection with the subsidence remediation projects undertaken by Rockaway Township in Morris County, New Jersey. This report provides a summary of the major project work accomplished during this reporting period and contemplated for the subsequent reporting period. This report is issued as part of the project reporting provisions set forth in the Cooperators Agreement between the United States Government--Department of Energy, and Rockaway Township. The purpose of the Cooperators Agreement is for the Department of Energy to provide technical and financial assistance in a coordinated effort with Rockaway Township to develop and implement a multi-phased plan to remediate ground stability problems associated with abandoned mining activity. Primarily during the 1800's, extensive iron ore mining and prospecting was undertaken in Rockaway Township, part of the Dover District Mining region in Morris County. The abandoned mining activity has resulted in public safety hazards associated with ground collapse and surface subsidence features evolving in both developed and undeveloped areas within Rockaway Township. At the White Meadow Mine site, after amended specifications were prepared and continued negotiations took place with the Property Owner, the property ownership was transferred during the reporting period. As a result in the change in property ownership, the remediation project was then to be done by the new Property Owner out of the responsibility of Rockaway Township under this Cooperators Agreement. At the Mt. Hope Road subsidence, surface monitoring was conducted at the work area and adjacent areas after the January 2000 construction effort. At the Green Pond Mine site at the Township Compost Storage Facility, no additional field work was undertaken during this reporting period subsequent to the previous completion of the geophysical survey. With the termination of the White Meadow Mine project, work began toward development of a remedial design for the Green Pond Mines.

  4. THE REMEDIATION OF ABANDONED IRON ORE MINE SUBSIDENCE IN ROCKAWAY TOWNSHIP, NEW JERSEY

    SciTech Connect (OSTI)

    Gary Gartenberg

    2003-12-01T23:59:59.000Z

    This report represents the thirteenth Technical Progress Report issued in connection with the subsidence remediation projects undertaken by Rockaway Township in Morris County, New Jersey. This report provides a summary of the major project work accomplished during this semi annual reporting period and contemplated for the subsequent reporting period. This report is issued as part of the project reporting provisions set forth in the Cooperators Agreement between the United States Government--Department of Energy, and Rockaway Township. The purpose of the Cooperators Agreement is for the Department of Energy to provide technical and financial assistance in a coordinated effort with Rockaway Township to develop and implement a multi-phased plan to remediate ground stability problems associated with abandoned mining activity. Primarily during the 1800's, extensive iron ore mining and prospecting was undertaken in Rockaway Township, part of the Dover District Mining region in Morris County. The abandoned mining activity has resulted in public safety hazards associated with ground collapse and surface subsidence features evolving in both developed and undeveloped areas within Rockaway Township. At the Green Pond Mine site at the Township's Jacobs Road Compost Storage Facility, construction was completed during this reporting period and surface monitoring began. Surface monitoring was conducted periodically at the Mt. Hope Road subsidence work area and adjacent areas after the January 2000 construction effort.

  5. Laboratory study related to the production and properties of pig iron nuggets

    SciTech Connect (OSTI)

    Anameric, B.; Kawatra, S.K. [Michigan Technological University, Houghton, MI (United States). Dept. for Chemical Engineering

    2006-02-15T23:59:59.000Z

    Pig iron nuggets were produced in a laboratory-scale furnace at Michigan Technological University. The process was intended to replicate Kobe Steel's ITmk3 direct ironmaking process. These nuggets were produced from pellets that were made from a mixture of iron oxide, coal, flux and a binder and heated in a furnace with a chamber temperature of 1450{sup o}C. The pellets then self-reduced to produce a solid, high-density, highly metallized (96.5% Fe) pig iron. During the nugget production process, a separate liquid slag phase formed that cleanly separated from the molten metal. The physical and chemical properties of the pig iron nuggets were similar to pig iron produced by blast furnaces, which is distinct from direct reduced iron (DRI).

  6. Iron supplementation at high altitudes induces inflammation and oxidative injury to lung tissues in rats

    SciTech Connect (OSTI)

    Salama, Samir A., E-mail: salama.3@buckeyemail.osu.edu [High Altitude Research Center, Taif University, Al-Haweiah, Taif 21974 (Saudi Arabia); Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, Cairo 11751 (Egypt); Department of Pharmacology and GTMR Unit, College of Clinical Pharmacy, Taif University, Al-Haweiah, Taif 21974 (Saudi Arabia); Omar, Hany A. [Department of Pharmacology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514 (Egypt); Maghrabi, Ibrahim A. [Department of Clinical Pharmacy, College of Clinical Pharmacy, Taif University, Al-Haweiah, Taif 21974 (Saudi Arabia); AlSaeed, Mohammed S. [Department of Surgery, College of Medicine, Taif University, Al-Haweiah, Taif 21974 (Saudi Arabia); EL-Tarras, Adel E. [High Altitude Research Center, Taif University, Al-Haweiah, Taif 21974 (Saudi Arabia)

    2014-01-01T23:59:59.000Z

    Exposure to high altitudes is associated with hypoxia and increased vulnerability to oxidative stress. Polycythemia (increased number of circulating erythrocytes) develops to compensate the high altitude associated hypoxia. Iron supplementation is, thus, recommended to meet the demand for the physiological polycythemia. Iron is a major player in redox reactions and may exacerbate the high altitudes-associated oxidative stress. The aim of this study was to explore the potential iron-induced oxidative lung tissue injury in rats at high altitudes (6000 ft above the sea level). Iron supplementation (2 mg elemental iron/kg, once daily for 15 days) induced histopathological changes to lung tissues that include severe congestion, dilatation of the blood vessels, emphysema in the air alveoli, and peribronchial inflammatory cell infiltration. The levels of pro-inflammatory cytokines (IL-1?, IL-6, and TNF-?), lipid peroxidation product and protein carbonyl content in lung tissues were significantly elevated. Moreover, the levels of reduced glutathione and total antioxidant capacity were significantly reduced. Co-administration of trolox, a water soluble vitamin E analog (25 mg/kg, once daily for the last 7 days of iron supplementation), alleviated the lung histological impairments, significantly decreased the pro-inflammatory cytokines, and restored the oxidative stress markers. Together, our findings indicate that iron supplementation at high altitudes induces lung tissue injury in rats. This injury could be mediated through excessive production of reactive oxygen species and induction of inflammatory responses. The study highlights the tissue injury induced by iron supplementation at high altitudes and suggests the co-administration of antioxidants such as trolox as protective measures. - Highlights: Iron supplementation at high altitudes induced lung histological changes in rats. Iron induced oxidative stress in lung tissues of rats at high altitudes. Iron increased the levels of IL-1?, IL-6 and TNF-? in lung tissues at high altitudes. Trolox alleviated the iron-induced histological and biochemical changes to the lungs.

  7. Work for Others (Non-Department of Energy Funded Work)

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2005-01-24T23:59:59.000Z

    Work for Others is the performance of work for non-Department of Energy (DOE) entities by DOE/National Nuclear Security Administration (NNSA) and/or their respective contractor personnel or the use of DOE/NNSA facilities that is not directly funded by DOE appropriations. Cancels DOE O 481.1B. Certified 1-13-11. Admin Chg 1, dated 3-14-11, cancels DOE O 481.1C. Admin Chg 2, dated 3-9-15, cancels DOE O 481.1C Admin Chg 1

  8. Reduction of soot emissions by iron pentacarbonyl in isooctane diffusion flames

    SciTech Connect (OSTI)

    Kim, K.B.; Masiello, K.A.; Hahn, D.W. [Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611 (United States)

    2008-07-15T23:59:59.000Z

    Light-scattering measurements, in situ laser-induced fluorescence, and thermophoretic sampling with transmission electron microscopy (TEM) analysis, were performed in laboratory isooctane diffusion flames seeded with 4000 ppm iron pentacarbonyl. These measurements allowed the determination of the evolution of the size, number density, and volume fraction of soot particles through the flame. Comparison to unseeded flame data provided a detailed assessment of the effects of iron addition on soot particle inception, growth, and oxidation processes. Iron was found to produce a minor soot-enhancing effect at early residence times, while subsequent soot particle growth was largely unaffected. It is concluded that primarily elemental iron is incorporated within the soot particles during particle inception and growth. However, iron addition was found to enhance the rate of soot oxidation during the soot burnout regime, yielding a two-thirds reduction in overall soot emissions. In situ spectroscopic measurements probed the transient nature of elemental iron throughout the flame, revealing significant loss of elemental iron, presumably to iron oxides, with increasing flame residence, suggesting catalysis of soot oxidation via iron oxide species. (author)

  9. Synthesis of the H-Cluster Framework of Iron-Only Hydrogenase...

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

    for hydrogen production or uptake, pertinent to energy transduction technology and a hydrogen economy. Herein we report the assembly of the first materials with di-iron...

  10. Reactivity of iron-bearing minerals and CO2 sequestration: A...

    Office of Scientific and Technical Information (OSTI)

    Reactivity of iron-bearing minerals and CO2 sequestration: A multi-disciplinary experimental approach Re-direct Destination: The reactivity of sandstones was studied under...

  11. ORNL scientists uncover clues to role of magnetism in iron-based...

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

    (865) 574-7308 ORNL scientists uncover clues to role of magnetism in iron-based superconductors Oak Ridge National Laboratory scientists used scanning transmission electron...

  12. Advances in Glass Formulations for Hanford High-Aluminum, High-Iron and Enhanced Sulphate Management in HLW Streams - 13000

    SciTech Connect (OSTI)

    Kruger, Albert A. [WTP Engineering Division, United States Department of Energy, Office of River Protection, Post Office Box 450, Richland, Washington 99352 (United States)] [WTP Engineering Division, United States Department of Energy, Office of River Protection, Post Office Box 450, Richland, Washington 99352 (United States)

    2013-07-01T23:59:59.000Z

    The current estimates and glass formulation efforts have been conservative in terms of achievable waste loadings. These formulations have been specified to ensure that the glasses are homogenous, contain essentially no crystalline phases, are processable in joule-heated, ceramic-lined melters and meet Hanford Tank Waste Treatment and Immobilization Plant (WTP) Contract terms. The WTP's overall mission will require the immobilization of tank waste compositions that are dominated by mixtures of aluminum (Al), chromium (Cr), bismuth (Bi), iron (Fe), phosphorous (P), zirconium (Zr), and sulphur (S) compounds as waste-limiting components. Glass compositions for these waste mixtures have been developed based upon previous experience and current glass property models. Recently, DOE has initiated a testing program to develop and characterize HLW glasses with higher waste loadings and higher throughput efficiencies. Results of this work have demonstrated the feasibility of increases in waste loading from about 25 wt% to 33-50 wt% (based on oxide loading) in the glass depending on the waste stream. In view of the importance of aluminum limited waste streams at Hanford (and also Savannah River), the ability to achieve high waste loadings without adversely impacting melt rates has the potential for enormous cost savings from reductions in canister count and the potential for schedule acceleration. Consequently, the potential return on the investment made in the development of these enhancements is extremely favorable. Glass composition development for one of the latest Hanford HLW projected compositions with sulphate concentrations high enough to limit waste loading have been successfully tested and show tolerance for previously unreported tolerance for sulphate. Though a significant increase in waste loading for high-iron wastes has been achieved, the magnitude of the increase is not as substantial as those achieved for high-aluminum, high-chromium, high-bismuth or sulphur. Waste processing rate increases for high-iron streams as a combined effect of higher waste loadings and higher melt rates resulting from new formulations have been achieved. (author)

  13. Advances in Glass Formulations for Hanford High-Alumimum, High-Iron and Enhanced Sulphate Management in HLW Streams - 13000

    SciTech Connect (OSTI)

    Kruger, Albert A.

    2013-01-16T23:59:59.000Z

    The current estimates and glass formulation efforts have been conservative in terms of achievable waste loadings. These formulations have been specified to ensure that the glasses are homogenous, contain essentially no crystalline phases, are processable in joule-heated, ceramic-lined melters and meet Hanford Tank Waste Treatment and Immobilization Plant (WTP) Contract terms. The WTP?s overall mission will require the immobilization of tank waste compositions that are dominated by mixtures of aluminum (Al), chromium (Cr), bismuth (Bi), iron (Fe), phosphorous (P), zirconium (Zr), and sulphur (S) compounds as waste-limiting components. Glass compositions for these waste mixtures have been developed based upon previous experience and current glass property models. Recently, DOE has initiated a testing program to develop and characterize HLW glasses with higher waste loadings and higher throughput efficiencies. Results of this work have demonstrated the feasibility of increases in waste loading from about 25 wt% to 33-50 wt% (based on oxide loading) in the glass depending on the waste stream. In view of the importance of aluminum limited waste streams at Hanford (and also Savannah River), the ability to achieve high waste loadings without adversely impacting melt rates has the potential for enormous cost savings from reductions in canister count and the potential for schedule acceleration. Consequently, the potential return on the investment made in the development of these enhancements is extremely favorable. Glass composition development for one of the latest Hanford HLW projected compositions with sulphate concentrations high enough to limit waste loading have been successfully tested and show tolerance for previously unreported tolerance for sulphate. Though a significant increase in waste loading for high-iron wastes has been achieved, the magnitude of the increase is not as substantial as those achieved for high-aluminum, high-chromium, high-bismuth or sulphur. Waste processing rate increases for high-iron streams as a combined effect of higher waste loadings and higher melt rates resulting from new formulations have been achieved.

  14. Radiological Work Planning and Procedure

    SciTech Connect (OSTI)

    KURTZ, J.E.

    2000-01-01T23:59:59.000Z

    Each facility is tasked with maintaining personnel radiation exposure as low as reasonably achievable (ALARA). A continued effort is required to meet this goal by developing and implementing improvements to technical work documents (TWDs) and work performance. A review of selected TWDs from most facilities shows there is a need to incorporate more radiological control requirements into the TWD. The Radioactive Work Permit (RWP) provides a mechanism to place some of the requirements but does not provide all the information needed by the worker as he/she is accomplishing the steps of the TWD. Requiring the engineers, planners and procedure writers to put the radiological control requirements in the work steps would be very easy if all personnel had a strong background in radiological work planning and radiological controls. Unfortunately, many of these personnel do not have the background necessary to include these requirements without assistance by the Radiological Control organization at each facility. In addition, there seems to be confusion as to what should be and what should not be included in the TWD.

  15. Master of Social Work Program School of Social Work

    E-Print Network [OSTI]

    Su, Xiao

    within are intended to guide and facilitate the educational experience of our graduate students, details of Social Work Program Overview 11 Mission and Goals 11 General Organization and Administration Professional and Academic Advising for MSW Students 28 Concerns about the MSW Program 28 General University

  16. CFCC working group meeting: Proceedings

    SciTech Connect (OSTI)

    NONE

    1997-12-31T23:59:59.000Z

    This report is a compilation of the vugraphs presented at this meeting. Presentations covered are: CFCC Working Group; Overview of study on applications for advanced ceramics in industries for the future; Design codes and data bases: The CFCC program and its involvement in ASTM, ISO, ASME, and military handbook 17 activities; CFCC Working Group meeting (McDermott Technology); CFCC Working Group meeting (Textron); CFCC program for DMO materials; Developments in PIP-derived CFCCs; Toughened Silcomp (SiC-Si) composites for gas turbine engine applications; CFCC program for CVI materials; Self-lubricating CFCCs for diesel engine applications; Overview of the CFCC program`s supporting technologies task; Life prediction methodologies for CFCC components; Environmental testing of CFCCs in combustion gas environments; High-temperature particle filtration ORNL/DCC CRADA; HSCT CMC combustor; and Case study -- CFCC shroud for industrial gas turbines.

  17. Long working distance interference microscope

    DOE Patents [OSTI]

    Sinclair, Michael B.; DeBoer, Maarten P.; Smith, Norman F.

    2004-04-13T23:59:59.000Z

    Disclosed is a long working distance interference microscope suitable for three-dimensional imaging and metrology of MEMS devices and test structures on a standard microelectronics probe station. The long working distance of 10-30 mm allows standard probes or probe cards to be used. This enables nanometer-scale 3-D height profiles of MEMS test structures to be acquired across an entire wafer. A well-matched pair of reference/sample objectives is not required, significantly reducing the cost of this microscope, as compared to a Linnik microinterferometer.

  18. Ultrafast reduction of the total magnetization in iron

    SciTech Connect (OSTI)

    Fognini, A., E-mail: afognini@phys.ethz.ch; Michlmayr, T. U.; Salvatella, G.; Vaterlaus, A.; Acremann, Y., E-mail: acremann@solid.phys.ethz.ch [Laboratory for Solid State Physics, Otto-Stern-Weg 1, ETH Zurich, 8093 Zurich (Switzerland); Wetli, C. [Multifunktionale Ferroische Mat., Vladimir-Prelog-Weg 1-5/10, ETH Zurich, 8093 Zurich (Switzerland); Ramsperger, U.; Bhler, T.; Pescia, D. [Laboratory for Solid State Physics, Auguste-Piccard-Hof 1, ETH Zurich, 8093 Zurich (Switzerland); Sorgenfrei, F.; Beye, M.; Eschenlohr, A.; Pontius, N.; Fhlisch, A. [Institut fr Methoden und Instrumentierung der Forschung mit Synchrotronstrahlung, Helmholtz-Zentrum Berlin fr Materialien und Energie GmbH, 12489 Berlin (Germany); Stamm, C. [Institut fr Methoden und Instrumentierung der Forschung mit Synchrotronstrahlung, Helmholtz-Zentrum Berlin fr Materialien und Energie GmbH, 12489 Berlin (Germany); Department of Materials, ETH Zurich, Hnggerbergring 64, 8093 Zurich (Switzerland); Hieke, F.; Dell'Angela, M.; Wurth, W. [Institut fr Experimentalphysik and Center for Free-Electron Laser Science, Universitt Hamburg, 22607 Hamburg (Germany); Jong, S. de; Drr, H. A. [SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States); and others

    2014-01-20T23:59:59.000Z

    Surprisingly, if a ferromagnet is exposed to an ultrafast laser pulse, its apparent magnetization is reduced within less than a picosecond. Up to now, the total magnetization, i.e., the average spin polarization of the whole valence band, was not detectable on a sub-picosecond time scale. Here, we present experimental data, confirming the ultrafast reduction of the total magnetization. Soft x-ray pulses from the free electron laser in Hamburg (FLASH) extract polarized cascade photoelectrons from an iron layer excited by a femtosecond laser pulse. The spin polarization of the emitted electrons is detected by a Mott spin polarimeter.

  19. Alkali-lead-iron phosphate glass and associated method

    DOE Patents [OSTI]

    Boatner, L.A.; Sales, B.C.; Franco, S.C.S.

    1994-03-29T23:59:59.000Z

    A glass composition and method of preparation utilizes a mixture consisting of phosphorus oxide within the range of about 40 to 49 molar percent, lead oxide within the range of about 10 to 25 molar percent, iron oxide within the range of about 10 to 17 molar percent and an alkali oxide within the range of about 23 to 30 molar percent. The glass resulting from the melting and subsequent solidifying of the mixture possesses a high degree of durability and a coefficient of thermal expansion as high as that of any of a number of metals. Such features render this glass highly desirable in glass-to-metal seal applications. 6 figures.

  20. Alkali-lead-iron phosphate glass and associated method

    DOE Patents [OSTI]

    Boatner, Lynn A. (Oak Ridge, TN); Sales, Brian C. (Knoxville, TN); Franco, Sofia C. S. (Santafe de Bogota, CO)

    1994-01-01T23:59:59.000Z

    A glass composition and method of preparation utilizes a mixture consisting of phosphorus oxide within the range of about 40 to 49 molar percent, lead oxide within the range of about 10 to 25 molar percent, iron oxide within the range of about 10 to 17 molar percent and an alkali oxide within the range of about 23 to 30 molar percent. The glass resulting from the melting and subsequent solidifying of the mixture possesses a high degree of durability and a coefficient of thermal expansion as high as that of any of a number of metals. Such features render this glass highly desirable in glass-to-metal seal applications.

  1. Synthesis of endohedral iron-fullerenes by ion implantation

    SciTech Connect (OSTI)

    Minezaki, H.; Ishihara, S. [Graduate School of Engineering, Toyo University, 2100, Kujirai, Kawagoe, Saitama 350-8585 (Japan)] [Graduate School of Engineering, Toyo University, 2100, Kujirai, Kawagoe, Saitama 350-8585 (Japan); Uchida, T., E-mail: uchida-t@toyo.jp [Bio-Nano Electronics Research Centre, Toyo University, 2100, Kujirai, Kawagoe, Saitama 350-8585 (Japan); Muramatsu, M.; Kitagawa, A. [National Institute of Radiological Sciences (NIRS), 4-9-1, Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555 (Japan)] [National Institute of Radiological Sciences (NIRS), 4-9-1, Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555 (Japan); Rcz, R.; Biri, S. [Institute of Nuclear Research (ATOMKI), Bem tr 18/C, H-4026 Debrecen (Hungary)] [Institute of Nuclear Research (ATOMKI), Bem tr 18/C, H-4026 Debrecen (Hungary); Asaji, T. [Oshima National College of Maritime Technology, 1091-1, Komatsu Suou Oshima-city Oshima, Yamaguchi 742-2193 (Japan)] [Oshima National College of Maritime Technology, 1091-1, Komatsu Suou Oshima-city Oshima, Yamaguchi 742-2193 (Japan); Kato, Y. [Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita-shi, Osaka 565-0871 (Japan)] [Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita-shi, Osaka 565-0871 (Japan); Yoshida, Y. [Graduate School of Engineering, Toyo University, 2100, Kujirai, Kawagoe, Saitama 350-8585 (Japan) [Graduate School of Engineering, Toyo University, 2100, Kujirai, Kawagoe, Saitama 350-8585 (Japan); Bio-Nano Electronics Research Centre, Toyo University, 2100, Kujirai, Kawagoe, Saitama 350-8585 (Japan)

    2014-02-15T23:59:59.000Z

    In this paper, we discuss the results of our study of the synthesis of endohedral iron-fullerenes. A low energy Fe{sup +} ion beam was irradiated to C{sub 60} thin film by using a deceleration system. Fe{sup +}-irradiated C{sub 60} thin film was analyzed by high performance liquid chromatography and laser desorption/ ionization time-of-flight mass spectrometry. We investigated the performance of the deceleration system for using a Fe{sup +} beam with low energy. In addition, we attempted to isolate the synthesized material from a Fe{sup +}-irradiated C{sub 60} thin film by high performance liquid chromatography.

  2. Degradation of polychlorinated biphenyls (PCBs) using palladized iron

    SciTech Connect (OSTI)

    West, O.R.; Liang, L.; Holden, W.L. [and others

    1996-06-01T23:59:59.000Z

    Contamination from polychlorinated biphenyls (PCBs) is a persistent problem within the Department of Energy complex, as well as in numerous industrial sites around the US. To date, commercially available technologies for destroying these highly stable compounds involve degradation at elevated temperatures either through incineration or base-catalyzed dehalogenation at 300{degrees}C. Since the heating required with these processes substantially increases the costs for treatment of PCB-contaminated wastes, there is a need for finding an alternative approach where PCB can be degraded at ambient temperatures. This report describes the degradation of PCB`s utilizing the bimetallic substrate of iron/palladium.

  3. Microstructure and fracture of alloyed austempered ductile iron

    SciTech Connect (OSTI)

    Eric, Olivera [Institute of Nuclear Sciences 'Vinca', Belgrade (Serbia and Montenegro); Rajnovic, Dragan [University of Novi Sad, Faculty of Technical Sciences, Novi Sad (Serbia and Montenegro); Zec, Slavica [Institute of Nuclear Sciences 'Vinca', Belgrade (Serbia and Montenegro); Sidjanin, Leposava [University of Novi Sad, Faculty of Technical Sciences, Novi Sad (Serbia and Montenegro); Jovanovic, Milan T. [Institute of Nuclear Sciences 'Vinca', Belgrade (Serbia and Montenegro)]. E-mail: tmsj@ptt.yu

    2006-12-15T23:59:59.000Z

    An investigation has been conducted on two austempered ductile irons alloyed with Cu and Cu + Ni, austenitized at 900 deg. C and austempered at 350 deg. C. The microstructure and fracture mode developed through these treatments have been identified by means of light and scanning electron microscopy and X-ray diffraction analysis. Impact energy measurements were performed on un-notched Charpy specimens. The maximum value of retained austenite volume fraction observed in the material alloyed with Cu + Ni was higher than in that alloyed with Cu austenitized and austempered under the same conditions. This led to the material alloyed with Cu + Ni having higher impact energy and substantial plastic deformation.

  4. Chemistry and Electronic Structure of Iron-Based Superconductors

    SciTech Connect (OSTI)

    Safa-Sefat, Athena [ORNL; Singh, David J [ORNL

    2011-01-01T23:59:59.000Z

    The solid state provides a richly varied fabric for intertwining chemical bonding, electronic structure, and magnetism. The discovery of superconductivity in iron pnictides and chalcogenides has revealed new aspects of this interplay, especially involving magnetism and superconductivity. Moreover, it has challenged prior thinking about high-temperature superconductivity by providing a set of materials that differ in many crucial aspects from the previously known cuprate superconductors. Here we review some of what is known about the superconductivity and its interplay with magnetism, chemistry, and electronic structure in Fe-based superconductors.

  5. New iron catalyst for preparation of polymethylene from synthesis gas

    DOE Patents [OSTI]

    Sapienza, R.S.; Slegeir, W.A.

    1988-03-31T23:59:59.000Z

    This invention relates to a process for synthesizing hydrocarbons; more particularly, the invention relates to a process for synthesizing long-chain hydrocarbons known as polymethylene from carbon monoxide and hydrogen or from carbon monoxide and water or mixtures thereof in the presence of a catalyst comprising iron and platinum or palladium or mixtures thereof which may be supported on a solid material, preferably an inorganic refractory oxide. This process may be used to convert a carbon monoxide containing gas to a product which could substitute for high density polyethylene.

  6. Iron and Steel (2010 MECS) | 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 DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report: I11IG002RTC3 | 12/1/2014 | ©Iowa lab getsIron and

  7. An Octahedral Coordination Complex of Iron(VI)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternative FuelsSanta FeAuthorization| Iron is the most abundant

  8. Iron is the Key to Preserving Dinosaur Soft Tissue

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation Peer ReviewIron is the Key to Preserving

  9. Mountain Iron, Minnesota: Energy Resources | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville,Missoula,MontereyHill,Spurr Geothermal Project Jump to:NewCity,Iron,

  10. The Iron Spin Transition in the Earth's Lower Mantle

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in the Earth's Lower Mantle Print It is now known that

  11. The Iron Spin Transition in the Earth's Lower Mantle

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in the Earth's Lower Mantle Print It is now known

  12. The Iron Spin Transition in the Earth's Lower Mantle

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in the Earth's Lower Mantle Print It is now knownThe

  13. The Iron Spin Transition in the Earth's Lower Mantle

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in the Earth's Lower Mantle Print It is now knownTheThe

  14. The Iron Spin Transition in the Earth's Lower Mantle

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in the Earth's Lower Mantle Print It is now

  15. Baotou Iron and Steel Group Baotou Steel | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation in Carbon CaptureAtriaPower Systems JumpUSAIDBaodingBaotou Iron

  16. The Iron Spin Transition in the Earth's Lower Mantle

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening a solidSynthesis of 2Dand WaterThe Future isThe Iron Spin

  17. Does Iron Fertilization Lead to Enhanced Carbon Sequestration? A Synthesis of Polar Star Results.

    SciTech Connect (OSTI)

    Buesseler, K.O.

    2002-12-01T23:59:59.000Z

    This research synthesized activities related to work conducted as part of the Southern Ocean Iron Experiment (SOFeX) which investigated the effects of iron fertilization on enhanced carbon sequestration. The primary interest was in the fate of sinking particles which carry carbon to the deep ocean, where it can be sequestered from the atmosphere for >100-1000 year time scales. This was accomplished through direct measurements of thorium-234, a naturally occurring particle reactive radionuclide that traces shallow particle export; SF6 measurements to track the position of the Fe fertilized region; and the collection of ancillary data and samples to augment the study of major C, nutrient and elemental budgets as well as appropriate samples for biological study. Results of this work show a small, but progressively increasing flux of particulate organic C to depth as a consequence of Fe fertilization. This is the first data set to show any effect of Fe fertilization on C sequestration in the Southern Ocean. The changes in particle export during SOFeX are significant, but only possible to detect given what is arguably the largest 234Th data set ever collected as part of an oceanographic experiment. Most prior 234Th studies, simply use a steady-state approximation and ignore advective and diffusive fluxes in the calculation of 234Th fluxes. High resolution time-series of average 0-50m 234Th activities in and out of the Southern patch find a clear steady decrease in 234Th flux that is slightly larger in vs. out of the Fe fertilized patch. This decrease must be included in the full 234Th flux calculation and the deliberate tagging of this water mass with SF6 combined with time-series sampling allowed for a careful evaluation of this non-steady state (NSS) term. Likewise, the addition of SF6 allows for the evaluation of vertical exchange (via the gradient of SF6 below the patch) and dilution effects (after correction for atmospheric losses). In most set tings these physical terms are small, but must be considered before the data can be finalized. The SF6 results considered in context of the 234Th mass balance has improved the current NSS model by the addition of physical transport.

  18. Low cost improvements in air pollution control for ARMCO's Ashland, Kentucky Works Sinter Plant

    SciTech Connect (OSTI)

    Felton, S.S. (ARMCO Inc., Ashland, KY (US))

    1987-01-01T23:59:59.000Z

    Particulate emissions from sinter plants can contribute a significant percentage of the total emissions from integrated steelmaking facilities. A well-known sinter plant air pollution phenomenon is called blue haze emissions. These emissions are caused when hydrocarbons introduced by filter cake, coke breeze, and mill scale are not burned in the sintering process and pass through the system as a very finely divided stable dispersed fog. The Sinter Plant at Ashland Works consists of Dravo-Lurgi traveling grate sintering machine which processes a mixture of materials including iron ore, iron pellet fines, blast furnace flue dust, limestone, melt shop slag, coke breeze and sinter return fines. This system is illustrated by the authors. Upon completion of the sintering process, the hot agglomerated sinter product is discharged to the sinter crusher. The sinter is then cooled and screened for use in Ashland Works' Amanda Blast Furnace. This system is illustrated. The Ashland Works Sinter Plant complex consists of a Sintering Machine Building, Sinter Screens Building and Ore Screens Building. For the purposes of this study, the Ore Transfer Tower Building was also included. The general layout of the complex is illustrated.

  19. Work for Others | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4(SC) Mapping the ImpactSCDOE Office ofThe LifeUserWork for Others

  20. 2001-2002 Long Range Plan Working Group Members | U.S. DOE Office of

    Office of Science (SC) Website

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4(SC) Mapping the ImpactSCDOE Office ofThe LifeUserWork's The's's

  1. 2007 Long Range Plan Working Group Members | U.S. DOE Office of Science

    Office of Science (SC) Website

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4(SC) Mapping the ImpactSCDOE Office ofThe LifeUserWork's

  2. Working Group Reports Calibration of Radiation Codes Used in Climate Models:

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWorkBusiness1: Model4:97

  3. Working Group Reports Summary of Single-Column Model Intensive Observation

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abigpresented in theWorkBusiness1: Model4:97

  4. Arbeidslivets lover Act relating to working environment,

    E-Print Network [OSTI]

    Johansen, Tom Henning

    Arbeidslivets lover Act relating to working environment, working hours and employment protection, etc. (Working Environment Act). as subsequently amended, last by the Act of 14. December 2012 No. 80.notification................................................................... 6 Chapter 3. Working environment measures..................................... 6 Section.3

  5. The Remediation of Abandoned Iron Ore Mine Subsidence in Rockaway Township, New Jersey

    SciTech Connect (OSTI)

    Gartenberg, Gary; Poff, Gregory

    2010-06-30T23:59:59.000Z

    This report represents the twenty-seventh and Final Technical Progress Report issued in connection with the subsidence remediation projects undertaken by Rockaway Township in Morris County, New Jersey. This report provides a summary of the major project work accomplished during this last reporting period ending June 30, 2010 and a summary of the work accomplished since the agreement inception in 1997. This report is issued as part of the project reporting provisions set forth in the Cooperator??s Agreement between the United States Government - Department of Energy, and Rockaway Township. The purpose of the Cooperator??s Agreement is for the Department of Energy to provide technical and financial assistance in a coordinated effort with Rockaway Township to develop and implement a multi-phased plan to remediate ground stability problems associated with abandoned mining activity. Primarily during the 1800??s, extensive iron ore mining and prospecting was undertaken in Rockaway Township, part of the Dover District Mining region in Morris County. The abandoned mining activity has resulted in public safety hazards associated with ground collapse and surface subsidence features evolving in both developed and undeveloped areas within Rockaway Township. At the Green Pond Mine site at the Township??s Jacobs Road Compost Storage Facility, surface monitoring continued after completion of construction in September 2003. Surface monitoring was conducted periodically at the Mt. Hope Road subsidence work area and adjacent areas after the January 2000 construction effort. In March 2007, a seventh collapse occurred over a portion of the White Meadow Mine in a public roadway at the intersection of Iowa and Erie Avenues in Rockaway Township. After test drilling, this portion of the mine was remediated by drilling and grouting the stopes.

  6. THE REMEDIATION OF ABANDONED IRON ORE MINE SUBSIDENCE IN ROCKAWAY TOWNSHIP, NEW JERSEY

    SciTech Connect (OSTI)

    Gary Gartenberg, P.E., P.P.

    2001-04-01T23:59:59.000Z

    This report represents the seventh Semi-Annual Technical Progress Report issued in connection with the subsidence remediation projects undertaken by Rockaway Township in Morris County, New Jersey. This report provides a summary of the major project work accomplished during this reporting period and contemplated for the subsequent reporting period. This report is issued as part of the project reporting provisions set forth in the Cooperators Agreement between the United States Government--Department of Energy, and Rockaway Township. The purpose of the Cooperators Agreement is for the Department of Energy to provide technical and financial assistance in a coordinated effort with Rockaway Township to develop and implement a multi-phased plan to remediate ground stability problems associated with abandoned mining activity. Primarily during the 1800's, extensive iron ore mining and prospecting was undertaken in Rockaway Township, part of the Dover District Mining region in Morris County. The abandoned mining activity has resulted in public safety hazards associated with ground collapse and surface subsidence features evolving in both developed and undeveloped areas within Rockaway Township. At the Green Pond Mine site at the Township Compost Storage Facility, research and preliminary design was performed during this reporting period toward development of the engineering plans and Technical Specifications for the remediation work. At the White Meadow Mine site, the remediation project was conducted last reporting period by others, out of the responsibility of Rockaway Township under this Cooperators Agreement. At the Mt. Hope Road subsidence, surface monitoring was conducted at the work area and adjacent areas after the January 2000 construction effort.

  7. Federal Utility Partnership Working Group

    Broader source: Energy.gov [DOE]

    The Federal Utility Partnership Working Group (FUPWG) establishes partnerships and facilitates communications among Federal agencies, utilities, and energy service companies. The group develops strategies to implement cost-effective energy efficiency and water conservation projects through utility incentive programs at Federal sites.

  8. Groupware Toolkits for Synchronous Work

    E-Print Network [OSTI]

    Greenberg, Saul

    sessions. A set of groupware programming abstractions allows develop- ers to control the behaviour's work- ing style. We illustrate the many ways these components can be designed by drawing on our own conventional single-user GUI toolkits are available, implementing even the simplest systems can be lengthy

  9. FINAL Announcement International Brainstorming Work-

    E-Print Network [OSTI]

    FINAL Announcement 1st International Brainstorming Work- shop on Waste to Energy in India Organized, though in an energy in-efficient way. Organic MSW is identified as one of the potential sources on food versus fuel intensifies, biomass can provide added income to farmers with- out compromising

  10. WORKING PAPER N 2010 -11

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    WORKING PAPER N 2010 - 11 Taxation of early retirement windows and delaying retirement: the French-5472 halshs-00809758,version1-9Apr2013 #12;Taxation of early retirement windows and delaying retirement increased the mandatory retirement age and simultaneously it set a tax levied on early retirement windows

  11. WORKING PAPER N 2010 -7

    E-Print Network [OSTI]

    Boyer, Edmond

    WORKING PAPER N 2010 - 7 Health and Early Retirement: Evidence from French Data for individuals-5472 halshs-00809723,version1-9Apr2013 #12;1 Health and Early Retirement: Evidence from French Data in the retirement decision. Significant links between professional paths, retirement age and retirement conditions

  12. How Minds Work Brains, Ontologies &

    E-Print Network [OSTI]

    Memphis, University of

    or software agent is a virtual machine implemented on another virtual machine The minds of humans or animals are virtual machines implemented on brains #12;Brains, Ontologies & Virtual Machines 13 Virtual1 How Minds Work Brains, Ontologies & Virtual Machines Stan Franklin Computer Science Division

  13. Inside Michigan Work First Programs

    E-Print Network [OSTI]

    Shyy, Wei

    Inside Michigan Work First Programs April, 2000 Poverty and Social Policy Welfare Michigan Program and Vicki Enright of the Michigan Department of Career Development who provided additional comments. Also Associate Program on Poverty and Social Welfare Policy University of Michigan 540 East Liberty Street, Suite

  14. My PhD Plan Completed Work

    E-Print Network [OSTI]

    Ruina, Andy L.

    Background My PhD Plan Completed Work Planned Work Hierarchical Biped Control A Exam Matthew Kelly August 4, 2014 Matthew Kelly Hierarchical Biped Control 1 / 34 #12;Background My PhD Plan Completed Work Planned Work Table of Contents 1 Background 2 My PhD Plan 3 Completed Work 4 Planned Work Push Hold Free

  15. Mixed polyanion glass cathodes: Iron phosphate vanadate glasses

    SciTech Connect (OSTI)

    Kercher, Andrew K [ORNL; Ramey, Joanne Oxendine [ORNL; Carroll, Kyler J [Massachusetts Institute of Technology (MIT); Kiggans Jr, James O [ORNL; Veith, Gabriel M [ORNL; Meisner, Roberta [Oak Ridge National Laboratory (ORNL); Boatner, Lynn A [ORNL; Dudney, Nancy J [ORNL

    2014-01-01T23:59:59.000Z

    Mixed polyanion (MP) glasses have been investigated for use as cathodes in lithium ion batteries. MP glass cathodes are similar in composition to theoretically promising crystalline polyanionic (CP) cathodes (e.g., lithium cobalt phosphate, lithium manganese silicate), but with proper polyanion substitution, they can be designed to overcome the key shortcomings of CP cathodes, such as poor electrical conductivity and irreversible phase changes. Iron phosphate/vanadate glasses were chosen as a first demonstration of the MP glass concept. Polyanion substitution with vanadate was shown to improve the intercalation capacity of an iron phosphate glass from almost zero to full theoretical capacity. In addition, the MP glass cathodes also exhibited an unexpected second high-capacity electrochemical reaction. X-ray absorption near-edge structure (XANES) and x-ray diffraction (XRD) of cathodes from cells having different states of charge suggested that this second electrochemical reaction is a glass-state conversion reaction. With a first demonstration established, MP glass materials utilizing an intercalation and/or glass-state conversion reaction are promising candidates for future high-energy cathode research.

  16. Sublattice Magnetic Relaxation in Rare Earth Iron Garnets

    SciTech Connect (OSTI)

    McCloy, John S.; Walsh, Brian

    2013-07-08T23:59:59.000Z

    The magnetic properties of rare earth garnets make them attractive materials for applications ranging from optical communications to magnetic refrigeration. The purpose of this research was to determine the AC magnetic properties of several rare earth garnets, in order to ascertain the contributions of various sublattices. Gd3Fe5O12, Gd3Ga5O12, Tb3Fe5O12, Tb3Ga5O12, and Y3Fe5O12 were synthesized by a solid state reaction of their oxides and verified by x-ray diffraction. Frequency-dependent AC susceptibility and DC magnetization were measured versus temperature (10 340 K). Field cooling had little effect on AC susceptibility, but large effect on DC magnetization, increasing magnetization at the lowest temperature and shifting the compensation point to lower temperatures. Data suggest that interaction of the two iron lattices results in the two frequency dependent magnetic relaxations in the iron garnets, which were fit using the Vogel-Fulcher and Arrhenius laws.

  17. Mechanical properties of thin-wall ductile iron

    SciTech Connect (OSTI)

    Schrems, Karol K.; Dogan, Omer N.; Hawk, Jeffrey A.; Druschitz, A.P. (Intermet Corp., Lynchburg, VA)

    2000-10-01T23:59:59.000Z

    The use of cast iron in automotive applications in this era of increasing fuel efficiency requires the ability to cast very thin sections (2-7 mm). Although thin-wall iron castings have been produced, difficulty arises in predicting the mechanical properties of these castings because mechanical behavior is closely related to thickness, which in turn is a direct consequence of the section cooling rate. Experiments relating casting thickness with ultimate tensile strength, elongation, reduction in area, and hardness were performed. An inverse relationship was found between ultimate tensile strength and thickness. Elongation was found to depend only on the thickness of the sample and approached zero as the thickness of the sample decreased below 1.5 mm. Percent reduction in area was found to depend linearly on thickness. Although average hardness also correlated with the inverse of thickness, it was not found to be a useful measure of ultimate tensile strength. The results of this study show that cooling rate of the thin wall casting very much affects the mechanical properties.

  18. Mechanism for export of sediment-derived iron in an upwelling regime

    E-Print Network [OSTI]

    Mahadevan, Amala

    Mechanism for export of sediment-derived iron in an upwelling regime S. A. Siedlecki,1 A. Mahadevan is exported offshore through this previously unidentified subsurface pathway. If this mechanism operates on all coastal upwelling regimes, the global export of sediment-derived iron to the open ocean would

  19. A novel strategy for surface modification of superparamagnetic iron oxide nanoparticles for lung cancer imaging

    E-Print Network [OSTI]

    Gao, Jinming

    A novel strategy for surface modification of superparamagnetic iron oxide nanoparticles for lung Superparamagnetic iron oxide (SPIO) nanoparticles are widely used in magnetic resonance imaging (MRI) as versatile-step procedure for the surface functionalization of SPIO nanoparticles with a lung cancer-targeting peptide

  20. Reduction of Sintering during Annealing of FePt Nanoparticles Coated with Iron Oxide

    E-Print Network [OSTI]

    Laughlin, David E.

    Reduction of Sintering during Annealing of FePt Nanoparticles Coated with Iron Oxide Chao Liu C for 30 min at which 2.6-nm FePt nanoparticles without oxide shell coating start to sinter. LowVised Manuscript ReceiVed October 12, 2004 FePt/iron oxide core/shell nanoparticles are synthesized by a two step