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1

Frustration by competing interactions in the highly-distorted double perovskites La2NaB'O6 (B' = Ru, Os)  

Science Conference Proceedings (OSTI)

The usual classical behaviour of S = 3/2, B-site ordered double perovskites generally results in simple, commensurate magnetic ground states. In contrast, heat capacity and neutron powder diffraction measurements for the S = 3/2 systems La2NaB'O6 (B = Ru, Os) reveal an incommensurate magnetic ground state for La2NaRuO6 and a drastically suppressed ordered moment for La2NaOsO6. This behaviour is attributed to the large monoclinic structural distortions of these double perovskites. The distortions have the effect of weakening the nearest neighbour superexchange interactions, presumably to an energy scale that is comparable to the next nearest neighbour superexchange. The exotic ground states in these materials can then arise from a competition between these two types of antiferromagnetic interactions, providing a novel mechanism for achieving frustration in the double perovskite family.

Aczel, Adam A [ORNL; Bugaris, Dan [University of South Carolina; Li, Ling [University of Tennessee, Knoxville (UTK); Yan, Jiaqiang [ORNL; Dela Cruz, Clarina R [ORNL; Zur Loye, Hans-Conrad [University of South Carolina; Nagler, Stephen E [ORNL

2013-01-01T23:59:59.000Z

2

PIA - HS Correspondence Tracking System (HSCT) | Department of...  

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

Correspondence Tracking System (HSCT) PIA - HS Correspondence Tracking System (HSCT) PIA - HS Correspondence Tracking System (HSCT) PIA - HS Correspondence Tracking System (HSCT)...

3

PIA - HS Web Services (HSWS) | Department of Energy  

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

Web Services (HSWS) PIA - HS Web Services (HSWS) PIA - HS Web Services (HSWS) PIA - HS Web Services (HSWS) More Documents & Publications PIA - INL PeopleSoft - Human Resource...

4

Microsoft Word - 15-HS.02 Rev 8  

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

10/14/13 10/14/13 WP 15-HS.02 Revision 8 Occupational Health Program Cognizant Department: Safety and Health Approved by: Tom Ferguson Working Copy WIPP Occupational Health Program WP 15-HS.02, Rev. 8 2 TABLE OF CONTENTS CHANGE HISTORY SUMMARY ..................................................................................... 4 ABBREVIATIONS AND ACRONYMS ............................................................................. 5 PREFACE ....................................................................................................................... 6 1.0 INTRODUCTION 1 ................................................................................................ 7 2.0 HEALTH SERVICES ORGANIZATION AND RESPONSIBILITIES ...................... 8

5

NERSC Hosts HS Students on Job Shadow Day- NERSC Center News...  

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

HS Students on Job Shadow Day NERSC Hosts HS Students on Job Shadow Day Albany High-schoolers Learn About Careers in Computing March 15, 2011 As part of Albany High School's annual...

6

Summit Appliance: ENERGY STAR Referral (CF11ES, Midea HS-390C...  

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

Appliance: ENERGY STAR Referral (CF11ES, Midea HS-390C) Summit Appliance: ENERGY STAR Referral (CF11ES, Midea HS-390C) October 28, 2011 DOE referred the matter of Summit freezer...

7

Chicago Regional Science Bowl - HS | U.S. DOE Office of Science...  

Office of Science (SC) Website

Illinois Regions Chicago Regional Science Bowl - HS National Science Bowl (NSB) NSB Home About NSB High School High School Students High School Coaches High School Regionals...

8

In RoHS Testing—Lead-Free Is not Always Trouble-Free  

Science Conference Proceedings (OSTI)

Oct 15, 2006 ... The electronics industry is scrambling to comply with the RoHS (Restriction of Hazardous Substances) Directive that takes effect on July 1, ...

9

ZeptoOS // Documentation  

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

Documentation Visit the ZeptoOS Documentation Wiki for a complete ZeptoOS documentation, including a list of features, requirements, limitations, and changes from previous...

10

Graphene Growth by Metal Etching on Ru (0001)  

E-Print Network (OSTI)

of step etching during graphene growth, such as in Fig. 3,adsorption of water on graphene structures will be describedRu(0001) Figure 5. a b c graphene Ru d Figure 6. Figure 7. a

Loginova, Elena

2010-01-01T23:59:59.000Z

11

ZeptoOS  

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

Overview ZeptoOS logo ZeptoOS is a research project studying operating systems for petascale architectures with 10,000 to 1 million CPUs. Operating systems and run-time software...

12

ZeptoOS // Downloads  

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

Downloads ZeptoOS Version 2.0 Release Name Size ZeptoOS-2.0-V1R3M0.tar.bz2 155M ZeptoOS-2.0-V1R3M0.tar.bz2.md5sum.txt 61 ZeptoOS-2.0-V1R3M0.tar.bz2.sha1sum.txt 69 Selfish Detour...

13

ZeptoOS // Links  

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

Links ZeptoOS-specific resources: Subversion repository Kernel GIT repository Bug tracking system Blue Gene resources: ALCF: Argonne Leadership Computing Facility Blue Gene...

14

Graphene on Ru(0001): Evidence for two graphene band structures  

Science Conference Proceedings (OSTI)

High-resolution photoemission illustrates that the band structure of graphene on Ru(0001) exhibits a well-defined splitting. This splitting is largest with the graphene directly on the Ru(0001) substrate, whereas with a chemisorbed oxygen spacer layer between the graphene and the metal substrate, this splitting is considerably reduced. This splitting is attributed to a combination of chemical interactions between graphene and Ru(0001) and to screening of the former by the latter, not spin-orbit coupling.

Katsiev K.; Vescovo E.; Losovyj, Y.; Zhou, Z.; Liu, L.; Dowben, P.A.; Goodman, D.W.

2012-05-03T23:59:59.000Z

15

Graphene on Ru(0001): Evidence for two graphene band structures  

Science Conference Proceedings (OSTI)

High-resolution photoemission illustrates that the band structure of graphene on Ru(0001) exhibits a well-defined splitting. This splitting is largest with the graphene directly on the Ru(0001) substrate, whereas with a chemisorbed oxygen spacer layer between the graphene and the metal substrate, this splitting is considerably reduced. This splitting is attributed to a combination of chemical interactions between graphene and Ru(0001) and to screening of the former by the latter, not spin-orbit coupling.

Katsiev, Khabibulakh; Losovyj, Yaroslav; Zhou, Zihao; Vescovo, E; Liu, L.; Dowben, P. A.; Goodman, D. Wayne

2012-01-01T23:59:59.000Z

16

Segregation of Ru to Edge Dislocations in Uranium Dioxide  

Science Conference Proceedings (OSTI)

Presentation Title, Segregation of Ru to Edge Dislocations in Uranium Dioxide. Author(s), Anuj Goyal, Bowen Deng, Minki Hong, Aleksandr Chernatynskiy, ...

17

Graphene Growth by Metal Etching on Ru (0001)  

Science Conference Proceedings (OSTI)

Low-energy electron microscopy (LEEM) reveals a new mode of graphene growth on Ru(0001) in which Ru atoms from a step edge are injected under a growing graphene sheet. The injected atoms can form under-graphene islands, or incorporate into the topmost Ru layer, thereby increasing its density and forming dislocation networks. Density functional calculations imply that Ru islands nucleated between the graphene layer and the substrate are energetically stable; scanning tunneling microscopy (STM) reveals that dislocation networks exist near step edges.

Loginova, Elena; Maier, Sabine; Stass, Ingeborg; Bartelt, Norman; Feibelman, Peter; Salmeron, Miquel; McCarty, Kevin

2009-09-14T23:59:59.000Z

18

Methanol oxidation on PtRu electrodes. Influence of surface structure and Pt-Ru atom distribution  

Science Conference Proceedings (OSTI)

The activities of different types of PtRu catalysts for methanol oxidation are compared. Materials used were: UHV-cleaned PtRu alloys, UHV-evaporated Ru onto Pt(111) as well as adsorbed Ru on Pt(111) prepared with and without additional reduction by hydrogen. Differences in the catalytic activity are observed to depend on the preparation procedure of the catalysts. The dependence of the respective catalytic activities upon the surface composition is reported. UHV-STM data for Pt(111)/Ru show the formation of two- and three-dimensional structures depending on surface coverage. A molecular insight on the electrochemical reaction is given via in situ infrared spectroscopy. Analysis of the data indicates that the most probable rate-determining step is the reaction of adsorbed CO with Ru oxide.

Iwasita, T.; Hoster, H.; John-Anacker, A.; Lin, W.F.; Vielstich, W.

2000-01-25T23:59:59.000Z

19

NERSC Hosts HS Students on Job Shadow Day- NERSC Center News, Mar 15, 2011  

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

HS HS Students on Job Shadow Day NERSC Hosts HS Students on Job Shadow Day Albany High-schoolers Learn About Careers in Computing March 15, 2011 As part of Albany High School's annual Job Shadow Day, 19 juniors from the school spent several hours shadowing Berkeley Lab scientists, mathematicians, engineers, technicians and communications staff. Based on their choice of potential career paths, students were matched with mentors at the main Lab facility, NERSC in Oakland and the Potter Street biosciences research center. Albany High's Darshan Parajuli (left) shadowed NERSC's Jim Mellander (right) for a first-hand view of what it's like to work in one of the world's preeminent scientific computing centers. Here's a list of the Lab staff and students they mentored:

20

DEVELOPMENT OF THE HS99 AIR TRANSPORT TYPE A FISSILE PACKAGE  

SciTech Connect

An air-transport Type A Fissile radioactive shipping package for the transport of special form uranium sources has been developed by the Savannah River National Laboratory (SRNL) for the Department of Homeland Security. The Package model number is HS99 for Homeland Security Model 99. This paper presents the major design features of the HS99 and highlights engineered materials necessary for meeting the design requirements for this light-weight Type AF packaging. A discussion is provided demonstrating how the HS99 complies with the regulatory safety requirements of the Nuclear Regulatory Commission. The paper summarizes the results of structural testing to specified in 10 CFR 71 for Normal Conditions of Transport and Hypothetical Accident Conditions events. Planned and proposed future missions for this packaging are also addressed.

Blanton, P.; Eberl, K.

2012-07-10T23:59:59.000Z

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


21

Non-stationary power signal processing for pattern recognition using HS-transform  

Science Conference Proceedings (OSTI)

A new approach to time-frequency transform and pattern recognition of non-stationary power signals is presented in this paper. In the proposed work visual localization, detection and classification of non-stationary power signals are achieved using hyperbolic ... Keywords: Fuzzy C-means clustering, Genetic algorithm, HS-transform, Non-stationary power signals, Power quality (PQ)

B. Biswal; P. K. Dash; B. K. Panigrahi

2009-01-01T23:59:59.000Z

22

Relevance of a Tuning-Fork Effect for Temperature Measurements with the Gill Solent HS Ultrasonic Anemometer–Thermometer  

Science Conference Proceedings (OSTI)

The performance of a new type of sonic anemometer–thermometer (called a sonic), the Solent-Research HS, manufactured by Gill Instruments, Lymington, United Kingdom, was investigated. Measurements of the three wind-velocity components u, ?, w, and ...

Holger Siebert; Andreas Muschinski

2001-08-01T23:59:59.000Z

23

Cross-functional environmental initiatives : addressing Restriction of Hazardous Substance (RoHS) technical challenges at Sun Microsystems  

E-Print Network (OSTI)

The European Union (EU) passed the Restriction of Hazardous Substances (RoHS) Directive, effective January 2006, banning the sale of electronics equipment containing lead and five other hazardous substances into EU countries. ...

Greenlaw, Tamara

2005-01-01T23:59:59.000Z

24

Time-Resolved FT-IR Spectroscopy of CO Hydrogenation over Supported Ru Catalyst at 700K  

E-Print Network (OSTI)

H. In-Situ Spectroscopy of Catalysts 2004, 32-46. Basu, P. ;over Supported Ru Catalyst at 700 K Walter Wasylenko andAl 2 O 3 -supported, Ru catalyst (Aldrich, 5% Ru, Degussa

Wasylenko, Walter; Frei, Heinz

2008-01-01T23:59:59.000Z

25

Stopping the growth of particles to silica-supported mono-nuclear Ru hydride surface species by tuning silica with surface silanes  

E-Print Network (OSTI)

chemical grafting of Ru(COD)(COT) through a covalent Ru-Siof a pentane solution of Ru(COD)(COT) under 3 bars of H 2 inhigh temperatures of grafted Ru(COD)(COT), leading to stable

Berthoud, Romain

2009-01-01T23:59:59.000Z

26

High Pressure Pulse Radiolysis-Reduction Cyt c by Ru(II) Complexes  

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

The DV values for intramolecular electron transfer in (NH3)5RuII-His33 horse heart ferricytochrome c and (NH3)5RuII-His39 Candida krusei ferricytochrome c are -17.7 ...

27

Surface?modified RuO2?based thick film resistors using Nd:YAG laser  

Science Conference Proceedings (OSTI)

An RuO2?based thick film resistor (TFR) is a cermet?type resistor which consists of RuO2 particles and glass. Paste containing organic vehicles is printed onto an insulating substrate

E. Gofuku; T. Ogama; H. Takasago

1989-01-01T23:59:59.000Z

28

Complex of transferrin with ruthenium for medical applications. [Ru 97, Ru 103  

DOE Patents (OSTI)

A novel Ruthenium-transferrin complex, prepared by reacting iron-free human transferrin dissolved in a sodium acetate solution at pH 7 with ruthenium by heating at about 40/sup 0/C for about 2 hours, and purifying said complex by means of gel chromatography with pH 7 sodium acetate as eluent. The mono- or di-metal complex produced can be used in nuclear medicine in the diagnosis and/or treatment of tumors and abscesses. Comparitive results with Ga-67-citrate, which is the most widely used tumor-localizing agent in nuclear medicine, indicate increased sensitivity of detection and greater tumor uptake with the Ru-transferrin complex.

Richards, P.; Srivastava, S.C.; Meinken, G.E.

1980-11-03T23:59:59.000Z

29

PtRu/C electrocatalysts prepared using gamma and electron beam irradiation for methanol electrooxidation  

Science Conference Proceedings (OSTI)

PtRu/C electrocatalysts (carbon-supported PtRu nanoparticles) were prepared in a single step submitting water/2-propanol mixtures containing Pt(IV) and Ru(III) ions and the carbon support to gamma and electron beam irradiation. The electrocatalysts were ...

Dionisio F. Silva, Adriana N. Geraldes, Eddy S. Pino, Almir Oliveira Neto, Marcelo Linardi, Estevam V. Spinacé

2012-01-01T23:59:59.000Z

30

Design and Application of RuBee-Based Telemedicine Data Acquisition System  

Science Conference Proceedings (OSTI)

Telemedicine can be defined as the delivery of health care and sharing of medical knowledge over a distance using telecommunication. This paper introduced the new technology of RuBee, RuBee fills the drawback of RFID tags which have no network and cannot ... Keywords: RuBee, Telemedicine system, electronic patient record, emergency telemedicine

Xiaohua Yu; Xiangling Xia; Xuhui Chen

2011-05-01T23:59:59.000Z

31

The interactions of water and perfluorodiethyl ether on Ru(100)  

DOE Green Energy (OSTI)

We have studied the interactions of water and perfluorodiethyl ether on Ru(100) in order to model the effects of surface structure and humidity on the bonding and decomposition of perfluoroalkyl ether lubricants with metal surfaces. In order to understand the interactions on Ru(100), we have first investigated the interactions of each of these adsorbates alone on the clean surface. The interactions of water with Ru(100) have been studied using both thermal desorption spectroscopy (TDS) and electron energy loss spectroscopy (EELS). From these studies we conclude that a small amount of water dissociates on this surface (5--10% of a monolayer), but water is adsorbed in a predominantly molecular form on this surface with an increasing degree of hydrogen-bonding with increasing coverage. The effects of hydrogen and oxygen coadsorption on the interactions of water with this surface have also been studied using TDS. Finally, the interactions of coadsorbed water and perfluorodiethyl ether on Ru(100) have been investigated using TDS.

Leavitt, P.

1990-09-21T23:59:59.000Z

32

Structure and Electrocatalysis of Sputtered RuPt Thin-film Electrodes  

DOE Green Energy (OSTI)

The structural and electrochemical properties of RuPt thin-film electrodes fabricated by RF magnetron sputtering have been investigated. Grazing incidence X-ray diffraction data show a transition from a face-centered-cubic (fcc) to hexagonal-cubic-packed (hcp) structure as Ru percentage increases. The transition occurs gradually between 32-58% Ru, which is significantly different from the bulk RuPt phase diagram. The catalytic activity of the thin-film electrodes for methanol oxidation shows a broad peak near 40-60% Ru, consistent with previous reports. The relationship between catalytic activity and film structure is discussed and contrasted with previous investigations.

Kim, T-W

2005-02-02T23:59:59.000Z

33

ZeptoOS // Contact Us  

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

Contact Us Project Management The ZeptoOS project makes use of the Trac system. Contact Information Thank you for your interest in this project. We are always looking forward to...

34

Teaching HS computer science as if the rest of the world existed: rationale for a HS Pre-APCS curriculum of interdisciplinary central-problem-based units that model real-world applications  

Science Conference Proceedings (OSTI)

The presentation, an interim report, will focus on the design, implementation and rationale for a pre-APCS HS curriculum of Interdisciplinary Central-Problem-Based units that model real-world applications. In a typical multi-week unit, students use an ... Keywords: K-12 instruction, Pre-APCS, central problem, curriculum, gender / diversity, increasing enrollment, interdisciplinary

Scott R. Portnoff

2012-02-01T23:59:59.000Z

35

Oxygen adsorption on the Ru(10Ż10) surface: Anomalous coverage dependence  

E-Print Network (OSTI)

Oxygen adsorption onto Ru(10Ż10) results in the formation of two ordered overlayers, i.e. a c(2×4)-2O and a (2×1)pg-2O phase, which were analyzed by low-energy electron diffraction (LEED) and density functional theory (DFT) calculation. In addition, the vibrational properties of these overlayers were studied by high-resolution electron loss spectroscopy. In both phases, oxygen occupies the threefold coordinated hcp site along the densely packed rows on an otherwise unreconstructed surface, i.e. the O atoms are attached to two atoms in the first Ru layer Ru(1) and to one Ru atom in the second layer Ru(2), forming zigzag chains along the troughs. While in the low-coverage c(2×4)-O phase, the bond lengths of O to Ru(1) and Ru(2) are 2.08 ?A and 2.03 ?A, respectively, corresponding bond lengths in the high-coverage (2×1)-2O phase are 2.01 ?A and 2.04 ?A(LEED). Although the adsorption energy decreases by 220 meV with O coverage (DFT calculations), we observe experimentally a shortening of the Ru(1)-O bond length with O coverage. This effect could not be reconciled with the present DFT-GGA calculations. The ?(Ru-O) stretch mode is found at 67 meV [c(2×4)-2O] and 64 meV [(2×1)pg-2O]. I.

S. Schwegmann; A. P. Seitsonen; V. De Renzi; H. Dietrich; H. Bludau; M. Gierer; H. Over; K. Jacobi; M. Scheffler; G. Ertl

1997-01-01T23:59:59.000Z

36

Synthesis of Ru/multiwalled carbon nanotubes by microemulsion for electrochemical supercapacitor  

Science Conference Proceedings (OSTI)

An efficient way to decorate multiwalled carbon nanotubes with Ru had been developed. In this method, Ru nanoparticles were prepared by water-in-oil reverse microemulsion, and the produced Ru anchored on MWCNTs. Transmission electron microscopy (TEM) result showed that RuO{sub 2} nanoparticles had the uniform size distribution after electrochemical oxidation. Energy dispersive X-rays (EDX) spectra elucidated the presence of ruthenium oxide in the as-prepared composites after electrochemical oxidation. Cyclic voltammetry result demonstrated that a specific capacitance of deposited ruthenium oxide electrode was significantly greater than that of the pristine MWCNTs electrode in the same medium.

Yan Shancheng; Qu Peng; Wang Haitao; Tian Tian [State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Si Pai Lou 2, Nanjing 210096 (China); Xiao Zhongdang [State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Si Pai Lou 2, Nanjing 210096 (China)], E-mail: zdxiao@seu.edu.cn

2008-10-02T23:59:59.000Z

37

A tentative classification of the bya ru can kings of Zhang zhung  

E-Print Network (OSTI)

grags text 1 p. 22 lines 4-5). They comprised a white turban pierced with eagle feathers, and skins of white lynx, white wolf and stag gzig gung gsum (“tiger, leopard and another kind of wild cat”). Tibetan Studies in honor of Samten Karmay 390 le... wore a radiant jewelled bya ru (rin chen ’od kyi bya ru), another one emitting a rainbow radiance (gzha’ tshon ’od kyi bya ru), and the third a crown made of mother- of-pearl (un chen dung gis bya ru—un chen seemingly refers to a kind of mother...

Vitali, Roberto

2008-01-01T23:59:59.000Z

38

Fusion-fission and quasifission in the reactions with heavy ions leading to the formation of Hs  

Science Conference Proceedings (OSTI)

Mass and energy distributions of binary reaction products obtained in the reactions {sup 22}Ne+{sup 249}Cf,{sup 26}Mg+{sup 248}Cm,{sup 36}S+{sup 238}U and {sup 58}Fe+{sup 208}Pb leading to Hs isotopes have been measured. At energies below the Coulomb barrier the bimodal fission of Hs*, formed in the reaction {sup 26}Mg+{sup 248}Cm, is observed. In the reaction {sup 36}S+{sup 238}U the considerable part of the symmetric fragments arises from the quasifission process. At energies above the Coulomb barrier the symmetric fragments originate mainly from fusion-fission process for both reactions with Mg and S ions. In the case of the {sup 58}Fe+{sup 208}Pb reaction the quasifission process dominates at all measured energies. The pre- and post-scission neutron multiplicities as a function of the fragment mass have been obtained for the reactions studied.

Itkis, I. M.; Itkis, M. G.; Knyazheva, G. N.; Kozulin, E. M. [Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, 141980 Dubna (Russian Federation)

2012-10-20T23:59:59.000Z

39

Fission and quasifission modes in heavy-ion-induced reactions leading to the formation of Hs{sup *}  

SciTech Connect

Mass and energy distributions of binary reaction products obtained in the reactions {sup 22}Ne+{sup 249}Cf,{sup 26}Mg+{sup 248}Cm, {sup 36}S+{sup 238}U, and {sup 58}Fe+{sup 208}Pb have been measured. All reactions lead to Hs isotopes. At energies below the Coulomb barrier the bimodal fission of Hs{sup *}, formed in the reaction {sup 26}Mg+{sup 248}Cm, is observed. In the reaction {sup 36}S+{sup 238}U, leading to the formation of a similar compound nucleus, the main part of the symmetric fragments arises from the quasifission process. At energies above the Coulomb barrier fusion-fission is the main process leading to the formation of symmetric fragments for both reactions with Mg and S ions. In the case of the {sup 58}Fe+{sup 208}Pb reaction the quasifission process dominates at all measured energies.

Itkis, I. M.; Kozulin, E. M.; Itkis, M. G.; Knyazheva, G. N.; Bogachev, A. A.; Chernysheva, E. V.; Krupa, L.; Oganessian, Yu. Ts.; Zagrebaev, V. I.; Rusanov, A. Ya.; Goennenwein, F.; Dorvaux, O.; Stuttge, L.; Hanappe, F.; Vardaci, E.; Goes Brennand, E. de [Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, 141980 Dubna (Russian Federation); Institute of Nuclear Physics of the National Nuclear Center of Kazakhstan, 050032 Almaty (Kazakhstan); Physikalisches Institut, Universitaet Tuebingen, D-72076 Tuebingen (Germany); Institut Pluridisciplinaire Hubert Curien and Universite de Strasbourg, F-67037 Strasbourg (France); Universite Libre de Bruxelles, CP229, B-1050 Bruxelles, Belgique (Belgium); Istituto Nazionale di Fisica Nucleare and Dipartimento di Scienze Fisiche dell'Universita di Napoli, Napoli (Italy); Departamento de Fisica, Universidade Estadual da Paraiba, 58109-753 Campina Grande (Brazil)

2011-06-15T23:59:59.000Z

40

Structural and physical properties of layered oxy-arsenides LnRuAsO (Ln=La, Nd, Sm, Gd)  

Science Conference Proceedings (OSTI)

Polycrystalline samples of LaRuAsO, NdRuAsO, SmRuAsO, and GdRuAsO have been synthesized and studied using powder x-ray diffraction, electrical transport, magnetization, and heat capacity measurements. Variations in structural properties across the series reveal a trend toward more ideal tetrahedral coordination around Ru as the size of the rare earth element is reduced. The lattice parameters of these Ru compounds show a more anisotropic response to variation in Ln than their Fe analogs, and significant anisotropy in thermal expansion is also observed. Transport measurements show metallic behavior, and carrier concentrations near 10{sup 21}-10{sup 22} electrons per cm{sup 3} are inferred from simple analysis of Hall effect measurements. Anomalies in resistivity, magnetization, and heat capacity indicate antiferromagnetic ordering of rare earth moments at 5 K for GdRuAsO, 4.5 K for SmRuAsO, and heat capacity of LaRuAsO, NdRuAsO, SmRuAsO, and GdRuAsO. Highlights: Black-Right-Pointing-Pointer Experimental investigation of LaRuAsO, NdRuAsO, SmRuAsO, and GdRuAsO. Black-Right-Pointing-Pointer Anisotropic lattice response to changing Ln radius and temperature. Black-Right-Pointing-Pointer Ru coordination becomes more ideal as Ln radius is reduced. Black-Right-Pointing-Pointer Transport measurements reveal metallic conduction dominated by electrons. Black-Right-Pointing-Pointer Magnetic measurements indicate antiferromagnetic ordering Nd, Sm, and Gd moments.

McGuire, Michael A., E-mail: McGuireMA@ornl.gov [Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States); May, Andrew F.; Sales, Brian C. [Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States)

2012-07-15T23:59:59.000Z

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


41

Mitochondrial HMG to CoA synthase (mHS): cDNA cloning in human, mouse and C. elegans, mapping to human chromosome 1p12-13 and partial human genomic cloning  

SciTech Connect

mHS catalyzes the rate-limiting first step of ketogenesis in the liver. A cytoplasmic HS isozyme, encoded by another gene, catalyzes an early step in cholesterol synthesis. Starting from a rat mHS cDNA obtained by RT-PCR from the published rat cDNA sequence, we obtained and sequenced human and mouse cDNAs spanning the entire coding sequence of natural human and mouse mHS, as well as sequencing C. elegans HS-like cDNA. Consensus sequences for 3 mitochondrial and 4 cytoplasmic HSs were created and compared to invertebrate HS sequences. We found high conversation in the active site and at other regions presumably important for HS function. We mapped the mHS locus, HMGCS2 by in situ hybridization to chromosome 1P12-13, in contrast to the human cHS locus (HMGCS1) known to be on chromosome 5p13. Comparative mapping results suggest that these two chromosomal regions may be contiguous in other species, constant with a recent gene duplication event. Furthermore, we have characterized a human genomic mHS subclone containing 4 mHS exons, and found the position of all splice junctions to be identical to that of the hamster cHS gene except for one site in the 3{prime} nontranslated region. We calculate that the mHS and cHS genes were derived from a common ancestor 400-700 Myrs ago, implying that ketogenesis from fat may have become possible around the time of emergence of vertebrates ({approximately}500 Myr ago). Ketogenesis has evolved into an important pathway of energy metabolism, and we predict the mHS deficiency may prove to be responsible for some as yet explained cases of Reye-like syndromes in humans. This hypothesis can now be tested at the molecular level without the necessity of obtaining hepatic tissue.

Boukaftane, Y.; Robert, M.F.; Mitchell, G.A. [Hopital Sainte-Justine, Montreal, Quebec (Canada)]|[Kingston General Hospital, Ontario (Canada)] [and others

1994-09-01T23:59:59.000Z

42

Crystallographic and magnetic phase transitions in the layered ruthenium oxy-arsenides TbRuAsO and DyRuAsO  

Science Conference Proceedings (OSTI)

The crystallographic and physical properties of TbRuAsO and DyRuAsO at and below room temperature are reported, including full structure refinements from powder X-ray diffraction data and measured electrical and thermal transport properties, magnetic susceptibility, and heat capacity. Both compounds are isostructural to LaFeAsO (ZrCuSiAs-type, P4/nmm) at room temperature. However, DyRuAsO undergoes a symmetry-lowering crystallographic phase transition near 25 K, and adopts an orthorhombic structure (Pmmn) below this temperature. This structural distortion is unlike those observed in the analogous Fe compounds. Magnetic phase transitions are observed in both compounds which suggest antiferromagnetic ordering of lanthanide moments occurs near 7.0 K in TbRuAsO and 10.5 K in DyRuAsO. The nature of the structural distortion as well as thermal conductivity and heat capacity behaviors indicate strong coupling between the magnetism and the lattice. The behaviors of both materials show magnetic ordering of small moments on Ru may occur at low temperatures.

McGuire, Michael A [ORNL; May, Andrew F [ORNL; Sales, Brian C [ORNL

2012-01-01T23:59:59.000Z

43

Intramolecular ET in Ru-Modified MnCyt c  

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

Tetraammine(L)ruthenium(III)-Modified Tetraammine(L)ruthenium(III)-Modified Manganocytochromes c Ji Sun and James F. Wishart Inorg. Chem. 37, 1124-1126 (1998) [Find paper at ACS Publications] or use ACS Articles on Request Abstract: Manganese-substituted horse heart cytochrome c was prepared by replacing the iron in the heme group according to established methods. The resulting manganicytochrome c was subsequently modified at histidine-33 with three ruthenium complexes trans-(NH3)4(L)Ru-His33, where L = NH3, pyridine or isonicotinamide. Proof of correct derivatization was obtained by atomic absorption analysis of manganese and ruthenium, differential pulse voltammetry and electrospray mass spectroscopy. Manganese(II)-to-ruthenium(III) intramolecular electron transfer rates were measured as a function of temperature by pulse radiolysis, using oxidation

44

Verifying security invariants in ExpressOS  

Science Conference Proceedings (OSTI)

Security for applications running on mobile devices is important. In this paper we present ExpressOS, a new OS for enabling high-assurance applications to run on commodity mobile devices securely. Our main contributions are a new OS architecture and ... Keywords: automatic theorem proving, microkernel, mobile security, programming by con- tracts

Haohui Mai; Edgar Pek; Hui Xue; Samuel Talmadge King; Parthasarathy Madhusudan

2013-04-01T23:59:59.000Z

45

diff -ruN oommf12a4pre-20100719/app/mmdisp/scripts ...  

Science Conference Proceedings (OSTI)

diff -ruN oommf12a4pre-20100719/app/mmdisp/scripts/mmdisp.tcl oommf12a4pre-20100719bis/app/mmdisp/scripts/mmdisp.tcl --- oommf12a4pre ...

2011-10-16T23:59:59.000Z

46

The structure of mixed H2O-OH monolayer films on Ru(0001)  

E-Print Network (OSTI)

to study the structures produced by water on Ru(0001) atexposure to water at 180 K produced a higher coverage ofThis produced a strong modification in the water film

Tatarkhanov, M.

2008-01-01T23:59:59.000Z

47

Efficient Generation of the LF Excited State of Tris-(bpy)-Ru(II)  

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

Generation of the Ligand Field Excited State of Generation of the Ligand Field Excited State of Tris-(2,2'-bipyridine)-ruthenium(II) through Sequential Two-Photon Capture by [Ru(bpy)3]2+ or Electron Capture by [Ru(bpy)3]3+ David W. Thompson, James F. Wishart, Bruce S. Brunschwig and Norman Sutin J. Phys. Chem. A, 105, 8117-8122 (2001) [Find paper at ACS Publications] Abstract: The relaxation dynamics and product distribution resulting from the decay of high lying excited states generated via sequential two-photon capture by [Ru(bpy)3]2+ or electron capture by [Ru(bpy)3]3+ have been investigated by flash photolysis and pulse radiolysis techniques. In comparison to the decay dynamics for monophotonic excitation, dramatically different relaxation dynamics have been observed. High-power flash excitation yields

48

In situ Ru K-edge x-ray absorption fine structure studies of electroprecipitated ruthenium dioxide films with relevance to supercapacitor applications.  

SciTech Connect

Modifications in electronic and structural aspects of RuO{sub 2} films electroprecipitated onto Au electrodes induced by changes in the applied potential have been examined in situ in aqueous 0.50 M H{sub 2}SO{sub 4} by Ru K-edge X-ray absorption spectroscopy (XAS). The Fourier transform of the k{sup 3}-weighted extended X-ray absorption fine structure (EXAFS), k{sup 3}x(k), for the film polarized at +1.20V vs RHE is characterized by two shells attributed to Ru-O and Ru-Ru interactions with average distances of 1.94(1) and 3.12(2) {angstrom}, respectively, in agreement with results obtained ex situ for Ru{sup 4+} in hydrous RuO{sub 2} by other groups. In contrast, films in the reduced state, i.e., +0.40 V vs RHE, yielded only a single shell ascribed to a Ru-O interaction at 2.02(1) {angstrom} with no evidence for a distant Ru-Ru shell. The long Ru-O distance is in agreement with that reported earlier for the hydrous Ru{sup 3+} ion [Ru-(OH{sub 2}){sub 6}]{sup 3+} in the solid state. Moreover, the difference between the average Ru-O bond lengths for the reduced and oxidized films is consistent with the difference in the ionic radii of Ru{sup 3+} and Ru{sup 4+}. On this basis it has been suggested that films in the reduced state contain Ru{sup 3+} sites, consistent with the electrochemical results, in a phase with apparently less order beyond the Ru-O coordination sphere than for hydrous RuO{sub 2}.

Mo, Y.; Antonio, M. R.; Stefan, I. C.; Scherson, D. A.; Chemistry; Case Western Reserve Univ.

2000-10-26T23:59:59.000Z

49

A SPECTROPOLARIMETRIC TEST OF THE STRUCTURE OF THE INTRINSIC ABSORBERS IN THE QUASAR HS 1603+3820  

SciTech Connect

We report the results of a spectropolarimetric observation of the C VI 'mini-broad' absorption line (mini-BAL) in the quasar HS 1603+3820 (z {sub em} = 2.542). The observations were carried out with the FOCAS instrument on the Subaru Telescope and yielded an extremely high polarization sensitivity of {delta}p{approx} 0.1%, at a resolving power of R {approx} 1500. HS 1603+3820 has been the target of a high-resolution spectroscopic monitoring campaign for more than four years, aimed at studying its highly variable C VI mini-BAL profile. Using the monitoring observations in an earlier paper, we were able to narrow down the causes of the variability to the following two scenarios: (1) scattering material of variable optical depth redirecting photons around the absorber and (2) a variable, highly ionized screen between the continuum source and the absorber which modulates the UV continuum incident on the absorber. The observations presented here provide a crucial test of the scattering scenario and lead us to disfavor it because (1) the polarization level is very small (p {approx} 0.6%) throughout the spectrum and (2) the polarization level does not increase across the mini-BAL trough. Thus, the variable screen scenario emerges as our favored explanation of the C VI mini-BAL variability. Our conclusion is bolstered by recent X-ray observations of nearby mini-BAL quasars, which show a rapidly variable soft X-ray continuum that appears to be the result of transmission through an ionized absorber of variable ionization parameter and optical depth.

Misawa, Toru [Cosmic Radiation Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Kawabata, Koji S. [Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526 (Japan); Eracleous, Michael; Charlton, Jane C. [Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802 (United States); Kashikawa, Nobunari, E-mail: misawatr@shinshu-u.ac.j, E-mail: mce@astro.psu.ed, E-mail: charlton@astro.psu.ed, E-mail: kawabtkj@hiroshima-u.ac.j, E-mail: kashik@zone.mtk.nao.ac.j [National Astronomical Observatory, Mitaka, Tokyo 181-8588 (Japan)

2010-08-20T23:59:59.000Z

50

Mac OS X Installation Notes for EXPGUI  

Science Conference Proceedings (OSTI)

... of the following steps: On the finder window for the ... Proceed through the windows by pressing Continue (note ... Mac OS X books that cover this subject ...

51

Type Tie Place Division School Class Score LastName FirstName Award I Tie 20 AA Bond County Community Unit #2 H.S. Freshman 16.75 Rainey Colton Honorable Mention  

E-Print Network (OSTI)

Community Unit #2 H.S. Freshman 16.75 Rainey Colton Honorable Mention I Tie 20 AA Teutopolis High School

Spector, Scott J.

52

Optimized code restructuring of OS/2 executables  

Science Conference Proceedings (OSTI)

This paper describes the design and algorithms of FDPR/2 (Feedback Directed Program Restructuring of OS/2 executables), a general-purpose tool that can be used to instrument, profile, and restructure/optimize OS/2 executables for the tel x86 architecture. ...

Jyh-Herng Chow; Yong-fong Lee; Kalyan Muthukumar; Vivek Sarkar; Mauricio Serrano; Iris Garcia; John Hsu; Shauchi Ong; Honesty Young

1995-11-01T23:59:59.000Z

53

Schottky barrier height behavior of Pt-Ru alloy contacts on single-crystal n-ZnO  

SciTech Connect

We investigated the Schottky barrier height (SBH) behavior of binary alloy Schottky contacts on n-type zinc oxide (n-ZnO) single crystals. Pt-Ru alloy electrodes were deposited on the Zn-polar and O-polar faces of ZnO substrates by combinatorial ion-beam deposition under identical conditions. The crystal structures of the Pt-Ru alloy film changed from the Pt phase (cubic structure) to the Ru phase (hexagonal structure) in the Pt-Ru alloy phase diagram with decreasing Pt content. The SBH, determined from current-voltage measurements, decreased with decreasing Pt content, indicating that the SBH behavior also followed the Pt-Ru alloy phase diagram. The alloy electrodes on the Zn-polar face showed better Schottky properties than those on the O-polar face. Hard x-ray photoelectron spectroscopy revealed a difference in the interface oxidization of the Pt-Ru alloy: the interface of the O-polar face and Pt-Ru mixed phase with poor crystallinity had a more oxidized layer than that of the Zn-polar face. As a result of this oxidization, the O-polar face, Pt-Ru mixed, and Ru phases showed poor Schottky properties.

Nagata, T.; Haemori, M.; Hayakawa, R.; Yoshitake, M.; Chikyow, T. [Advanced Electronic Materials Center, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Volk, J. [Research Institute for Technical Physics and Materials Science, H-1121 Budapest, Konkoly Thege Miklos ut 29-33 (Hungary); Yamashita, Y. [Advanced Electronic Materials Center, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); NIMS Beamline Station at SPring-8, National Institute for Materials Science, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148 (Japan); Yoshikawa, H.; Ueda, S.; Kobayashi, K. [NIMS Beamline Station at SPring-8, National Institute for Materials Science, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148 (Japan)

2010-05-15T23:59:59.000Z

54

Astrophysical S-Factors and Reaction Rates of Threshold (p, n)-Reactions on {sup 99-102}Ru  

Science Conference Proceedings (OSTI)

Astrophysical S-factors of (p, n) reactions on {sup 99}Ru, {sup 100}Ru, {sup 101}Ru, and {sup 102}Ru were derived from the sum of experimental isomeric and ground states cross sections measured in the incident proton energy range of 5-9 MeV. They were compared with Hauser-Feshbach statistical model predictions of the NON-SMOKER code. Good agreement was found in the majority of cases. Reaction rates were derived up to 8.7 GK stellar temperature by combining experiment and theory.

Skakun, Ye. [Kharkiv Institute of Physics and Technology, Academicheskaja str., 1, 61108 Kharkiv (Ukraine); Rauscher, T. [Department of Physics, University of Basel, Klingelbergstr, 82, CH-4056 Basel (Switzerland)

2010-08-12T23:59:59.000Z

55

OsComp Systems | Open Energy Information  

Open Energy Info (EERE)

OsComp Systems OsComp Systems Jump to: navigation, search Logo: OsComp Systems Name OsComp Systems Address 337 Summer St. Place Boston, Massachusetts Zip 02210 Sector Efficiency Product Compression technology Year founded 2010 Number of employees 1-10 Coordinates 42.3491263°, -71.0481592° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.3491263,"lon":-71.0481592,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

56

Mac OS X Installation Notes for EXPGUI  

Science Conference Proceedings (OSTI)

... The Tcl/Tk Starkit. ... Thanks to Paul Kienzle of the NCNR DAVE project for providing the "all in one file" (starkit) version of Tcl/Tk for OS X. ...

57

Direct Observation of the Kinetically Relevant Site of CO Hydrogenation on Supported Ru Catalyst at 700 K by Time-Resolved FT-IR Spectroscopy  

E-Print Network (OSTI)

In- Situ Spectroscopy of Catalysts; B.M. Weckhuysen, Ed. ;CO Hydrogenation on Supported Ru Catalyst at 700 K by Time-K. 1. Introduction Supported Ru catalysts are among the most

Wasylenko, Walter

2008-01-01T23:59:59.000Z

58

IBM-1 description of the fission products $^{108,110,112}$Ru  

E-Print Network (OSTI)

IBM-1} calculations for the fission products $^{108,110,112}$Ru have been carried out. The even-even isotopes of Ru can be described as transitional nuclei situated between the U(5) (spherical vibrator) and SO(6) ($\\gamma$-unstable rotor) symmetries of the Interacting Boson Model. At first, a Hamiltonian with only one- and two-body terms has been used. Excitation energies and $B$(E2) ratios of gamma transitions have been calculated. A satisfactory agreement has been obtained, with the exception of the odd-even staggering in the quasi-$\\gamma$ bands of $^{110,112}$Ru. The observed pattern is rather similar to the one for a rigid triaxial rotor. A calculation based on a Hamiltonian with three-body terms was able to remove this discrepancy. The relation between the IBM and the triaxial rotor model was also examined.

I. Stefanescu; A. Gelberg; J. Jolie; P. Van Isacker; P. Von Brentano; Y. X. Luo; S. J. Zhu; J. O. Rasmussen; J. H. Hamilton; A. V. Ramayya; X. L. Che

2007-06-12T23:59:59.000Z

59

IBM-1 description of the fission products $^{108,110,112}$Ru  

E-Print Network (OSTI)

IBM-1} calculations for the fission products $^{108,110,112}$Ru have been carried out. The even-even isotopes of Ru can be described as transitional nuclei situated between the U(5) (spherical vibrator) and SO(6) ($\\gamma$-unstable rotor) symmetries of the Interacting Boson Model. At first, a Hamiltonian with only one- and two-body terms has been used. Excitation energies and $B$(E2) ratios of gamma transitions have been calculated. A satisfactory agreement has been obtained, with the exception of the odd-even staggering in the quasi-$\\gamma$ bands of $^{110,112}$Ru. The observed pattern is rather similar to the one for a rigid triaxial rotor. A calculation based on a Hamiltonian with three-body terms was able to remove this discrepancy. The relation between the IBM and the triaxial rotor model was also examined.

Stefanescu, I; Jolie, J; Van Isacker, P; Von Brentano, P; Luo, Y X; Zhu, S J; Rasmussen, J O; Hamilton, J H; Ramayya, A V; Che, X L

2007-01-01T23:59:59.000Z

60

Role of hydrous ruthenium oxide in Pt-Ru direct methanol fuel cell anode electrocatalysts: The importance of mixed electron/proton conductivity  

Science Conference Proceedings (OSTI)

Pt-Ru is the favored anode catalyst for the oxidation of methanol in direct methanol fuel cells (DMFCs). The nanoscale Pt-Ru blacks are accepted to be bimetallic alloys as based on their X-ray diffraction patterns. These bulk and surface analyses show that although practical Pt-Ru blacks have diffraction patterns consistent with an alloy assignment, they are primarily a mix of Pt metal and Ru oxides plus some Pt oxides and only small amounts of Ru metal. Thermogravimetric analysis and X-ray photoelectron spectroscopy of as-received Pt-Ru electrocatalysts indicate that DMFC materials contain substantial amounts of hydrous ruthenium oxide (RuO{sub x}H{sub y}). A potential misidentification of nanoscale Pt-Ru blacks arises because RuO{sub x}H{sub y} is amorphous and cannot be discerned by X-ray diffraction. Hydrous ruthenium oxide is a mixed proton and electron conductor and innately expresses Ru-OH speciation. These properties are of key importance in the mechanism of methanol oxidation, in particular, Ru-OH is a critical component of the bifunctional mechanism proposed for direct methanol oxidation in that it is the oxygen-transfer species that oxidatively dissociates {single_bond}C{triple_bond}O fragments from the Pt surface. The catalysts and membrane-electrode assemblies of DMFCs should not be processed at or exposed to temperatures >150 C, as such conditions deleteriously lower the proton conductivity of hydrous ruthenium oxide and thus affect the ability of the Ru component of the electrocatalyst to dissociate water. With this analytical understanding of the true nature of practical nanoscale Pt-Ru electrocatalysts, the authors can now recommend that hydrous ruthenium oxide, rather than Ru metal or anhydrous RuO{sub 2}, is the preferred Ru speciation in these catalysts.

Rolison, D.R.; Hagans, P.L.; Swider, K.E.; Long, J.W. [Naval Research Lab., Washington, DC (United States). Surface Chemistry Branch

1999-02-02T23:59:59.000Z

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


61

Special Chemical Properties of RuOx Nanowires in RuOx/TiO2(110): Dissociation of Water and Hydrogen Production  

Science Conference Proceedings (OSTI)

Recently, there has been a strong interest in understanding the role of mixed-metal oxides in catalysts used for the production of hydrogen through the splitting of water. Here, we investigate the structural and chemical properties of RuO{sub x}/TiO{sub 2}(110) surfaces employing scanning tunneling microscopy, photoemission, and density functional calculations. Ruthenium oxide forms unique wirelike structures on top of TiO{sub 2}(110) which are very reactive toward water dissociation, being able to cleave O-H bonds at a temperature as low as 200 K. The calculated barrier for the dissociation of water on RuO{sub 2} nanowires is benchmarks for studying this reaction.

Rodriguez J. A.; Kundu, S.; Vidal, A.B.; Yang, F.; Ramírez, P.J.; Senanayake, S.D.; Stacchiola, D.; Evans, J.; Liu, P.

2012-02-23T23:59:59.000Z

62

Voltammetric characterization of ruthenium oxide-based aerogels and other RuO{sub 2} solids: The nature of capacitance in nanostructured materials  

Science Conference Proceedings (OSTI)

Ruthenium dioxide is an important electrode material for applications in electrocatalysis and power sources. High surface areas are achieved in hydrous RuO{sub 2} precipitates and in mixed ruthenium oxide-titanium oxide, (Ru-Ti)O{sub x}, aerogels ( in which nanoscale domains are networked to form a highly porous structure). The electrochemical properties of (Ru-Ti)O{sub x} aerogels, RuO{sub 2}, and hydrous RuO{sub 2} are examined by direct pressing of sub-milligram quantities of the solid onto the surface of a conductive carbon/wax composite. Voltammetric measurements in acidic electrolyte confirm a pseudocapacitive response for all the RuO{sub x}-based materials. Despite an improvement in BET surface area, as compared with other RuO{sub 2} materials, the (Ru-Ti)O{sub x} aerogel displays a low specific capacitance, which correlated to the high degree of crystallinity of the aerogel. Nanocrystallites of rutile RuO{sub 2}, formed during thermal treatment of the sol-gel Ru/Ti precursors, deleteriously affect the specific capacitance of the material; however, all RuO{sub x} domains in the aerogel are voltammetrically addressable. The influence of proton-donating species on the observed capacitance for the (Ru-Ti)O{sub x} aerogel is evident from the dependence of the voltammetric charge in acidic electrolyte on the potential scan rate.

Long, J.W.; Swider, K.E.; Merzbacher, C.I.; Rolison, D.R. [Naval Research Lab., Washington, DC (United States)

1999-02-02T23:59:59.000Z

63

NiW and NiRu Bimetallic Catalysts for Ethylene Steam Reforming: Alternative Mechanisms for Sulfur Resistance  

SciTech Connect

Previous investigations of Ni-based catalysts for the steam reforming of hydrocarbons have indicated that the addition of a second metal can reduce the effects of sulfur poisoning. Two systems that have previously shown promise for such applications, NiW and NiRu, are considered here for the steam reforming of ethylene, a key component of biomass derived tars. Monometallic and bimetallic Al{sub 2}O{sub 3}-supported Ni and W catalysts were employed for ethylene steam reforming in the presence and absence of sulfur. The NiW catalysts were less active than Ni in the absence of sulfur, but were more active in the presence of 50 ppm H{sub 2}S. The mechanism for the W-induced improvements in sulfur resistance appears to be different from that for Ru in NiRu. To probe reasons for the sulfur resistance of NiRu, the adsorption of S and C{sub 2}H{sub 4} on several bimetallic NiRu alloy surfaces ranging from 11 to 33 % Ru was studied using density functional theory (DFT). The DFT studies reveal that sulfur adsorption is generally favored on hollow sites containing Ru. Ethylene preferentially adsorbs atop the Ru atom in all the NiRu (111) alloys investigated. By comparing trends across the various bimetallic models considered, sulfur adsorption was observed to be correlated with the density of occupied states near the Fermi level while C{sub 2}H{sub 4} adsorption was correlated with the number of unoccupied states in the d-band. The diverging mechanisms for S and C{sub 2}H{sub 4} adsorption allow for bimetallic surfaces such as NiRu that enhance ethylene binding without accompanying increases in sulfur binding energy. In contrast, bimetallics such as NiSn and NiW appear to decrease the affinity of the surface for both the reagent and the poison.

Rangan, M.; Yung, M. M.; Medlin, J. W.

2012-06-01T23:59:59.000Z

64

Reactions of HS sup sm bullet and S sup sm bullet minus with molecular oxygen, H sub 2 S, HS sup minus , and S sup 2 minus : Formation of SO sub 2 sup sm bullet minus , HSSH sup sm bullet minus , HSS sup sm bullet 2 minus , and HSS sup sm bullet. [Gamma radiation  

SciTech Connect

An electron spin resonance investigation of the reactions of HS{sup {sm bullet}} and S{sup {sm bullet}{minus}} produced from H{sub 2}S, HS{sup {minus}}, and S{sup 2{minus}} in glassy matrices at low temperatures is presented. Co-60 irradiation of 8 M NaClO{sub 4}, 12 M LiCl, and alkali-metal hydroxide glasses at 77 K results in the formation of O{sup {sm bullet}{minus}}, Cl{sub 2}{sup {sm bullet}{minus}}, and e{sup {minus}}. Upon annealing to about 150 K O{sup {sm bullet}{minus}} or Cl{sub 2}{sup {sm bullet}{minus}} reacts with the solutes H{sub 2}S, HS{sup {minus}}, or S{sup 2{minus}} to form HS{sup {sm bullet}} and S{sup {sm bullet}{minus}} radicals. In the presence of molecular oxygen HS{sup {sm bullet}} and S{sup {sm bullet}{minus}} each react to form sulfur dioxide anion radical, SO{sub 2}{sup {sm bullet}{minus}}. {sup 17}O isotopic studies verify the source of the oxygen in SO{sub 2}{sup {sm bullet}{minus}} is the molecular oxygen dissolved in the matrices. In the absence of molecular oxygen, competing processes are clearly observed; i.e., HS{sup {sm bullet}} and S{sup {sm bullet}{minus}} attack H{sub 2}S and HS{sup {minus}} to form dimer radicals HSSH{sup {sm bullet}{minus}} and HSS{sup {sm bullet}2{minus}}. At low pH the authors find that HS{sup {sm bullet}} attacks H{sub 2}S to form HSS{sup {sm bullet}}. Mechanisms for the formation of these species are proposed, and hyperfine couplings and g values are reported. Ab initio molecular orbital calculations are performed to aid their understanding of the electronic structure of the various radical species formed and the energetics of their reactions.

Zhu, J.; Petit, K.; Colson, A.O.; DeBolt, S.; Sevilla, M.D. (Oakland Univ., Rochester, MI (United States))

1991-05-02T23:59:59.000Z

65

Special Chemical Properties of RuOx Nanowires in RuOx/TiO2(110): Dissociation of Water and Hydrogen Production  

DOE Green Energy (OSTI)

Recently, there has been a strong interest in understanding the role of mixed-metal oxides in catalysts used for the production of hydrogen through the splitting of water. Here, we investigate the structural and chemical properties of RuO{sub x}/TiO{sub 2}(110) surfaces employing scanning tunneling microscopy, photoemission, and density functional calculations. Ruthenium oxide forms unique wirelike structures on top of TiO{sub 2}(110) which are very reactive toward water dissociation, being able to cleave O-H bonds at a temperature as low as 200 K. The calculated barrier for the dissociation of water on RuO{sub 2} nanowires is <0.05 eV. The presence of easily formable O vacancies in the ruthenium oxide nanowires facilitates the dissociation of water. Furthermore, RuO{sub x}/TiO{sub 2} (110) surfaces are able to catalyze the production of hydrogen through the water-gas shift reaction (H{sub 2}O + CO {yields} H{sub 2} + CO{sub 2}), exhibiting an activity that compares well with the activity found for extended surfaces of copper typically used as benchmarks for studying this reaction.

Rodriguez J. A.; Kundu, S.; Vidal, A.B.; Yang, F.; Ramírez, P.J.; Senanayake, S.D.; Stacchiola, D.; Evans, J.; Liu, P.

2012-02-23T23:59:59.000Z

66

MgO-Supported Cluster Catalysts with Pt-Ru Interactions Prepared from Pt3Ru6(CO)21(u3-H)(u-H)3  

Science Conference Proceedings (OSTI)

Bimetallic MgO-supported catalysts were prepared by adsorption of Pt{sub 3}Ru{sub 6}(CO){sub 21}({mu}{sub 3}-H)({mu}-H){sub 3} on porous MgO. Characterization of the supported clusters by infrared (IR) spectroscopy showed that the adsorbed species were still in the form of metal carbonyls. The supported clusters were decarbonylated by treatment in flowing helium at 300 C, as shown by IR and extended X-ray absorption fine structure (EXAFS) data, and the resulting supported PtRu clusters were shown by EXAFS spectroscopy to have metal frames that retained Pt-Ru bonds but were slightly restructured relative to those of the precursor; the average cluster size was almost unchanged as a result of the decarbonylation. These are among the smallest reported bimetallic clusters of group-8 metals. The decarbonylated sample catalyzed ethylene hydrogenation with an activity similar to that reported previously for {gamma}-Al{sub 2}O{sub 3}-supported clusters prepared in nearly the same way and having nearly the same structure. Both samples were also active for n-butane hydrogenolysis, with the MgO-supported catalyst being more active than the {gamma}-Al{sub 2}O{sub 3}-supported catalyst.

Chotisuwan,S.; Wittapyakun, J.; Lobo-Lapidus, R.; Gates, B.

2007-01-01T23:59:59.000Z

67

RoHS  

Science Conference Proceedings (OSTI)

... Cat 4. Consumer electronics: TVs, DVD players, stereos, video cameras; Cat 5. Lighting: lamps, lighting fixtures, light bulbs; ...

68

RoHS  

Science Conference Proceedings (OSTI)

... or integrators that in turn sell products to ... Power tools: drills, saws, nail guns, sprayers, lathes ... products refurbished by the manufacturer for retail sale. ...

69

Chains of centered metal clusters with a novel range of distortions: Pr[sub 3]I[sub 3]Ru, Y[sub 3]I[sub 3]Ru, and Y[sub 3]I[sub 3]Ir  

SciTech Connect

The phases R[sub 3]I[sub 3]Ru (R = La, Pr, Gd, Y, Er) and R[sub 3]I[sub 3]Ir (R = Gd, Y) are obtained from the reactions of R, RI[sub 3], and Ru or Ir for 3-4 weeks in sealed Ta tubing at 850-975C, depending on the system. The title phases have been characterized by single-crystal X-ray means at room temperature. The first phase contains quasi-infinite double chains of edge-sharing Pr[sub 6](Ru) octahedra that are sheathed and interbridged by iodine. An evidently continuous distortion of these chains parallels the a/b axial ratio (in the order listed in the first sentence) such that metal octahedra are no longer obvious in Y[sub 3]I[sub 3]Ir; rather chains of trans-edge-sharing square pyramidal Y[sub 4]Ir units bonded base-to-base are more apt. Increased R-R, R-interstitial, and interstitial-interstitial bonding appears to parallel the degree of distortion. Magnetic data for La[sub 3]I[sub 3]Ru and Pr[sub 3]I[sub 3]Ru and the results of extended Hueckel band calculations on Pr[sub 3]I[sub 3]Ru are reported. Polar covalent Pr-Ru interactions and at least a quasi-closed shell configuration are emphasized by the latter.

Payne, M.W.; Dorhout, P.K.; Kim, Sungjin; Hughbanks, T.R.; Corbett, J.D. (Iowa State Univ., Ames (United States) Texas A and M Univ., College Station (United States))

1992-04-15T23:59:59.000Z

70

ANDREI MANOLESCU, ASSOCIATE PROFESSOR SCOOL OF SCIENCE AND ENGINEERING | RU LECTURE MARATHON  

E-Print Network (OSTI)

ANDREI MANOLESCU, ASSOCIATE PROFESSOR SCOOL OF SCIENCE AND ENGINEERING | RU LECTURE MARATHON: , Schrödinger equation: , ( ) , Hamiltonian (energy) operator: ( ) ( , ) 2 r t i r t H t r t t H t U r t m = = - + r r r h h r Example: The quantum well #12;Open quantum dots in contact with leads Unknown wave

Karlsson, Brynjar

71

Improvement security for RuBee radio-WiMAX mesh networks  

Science Conference Proceedings (OSTI)

Next generation communication standard integrate various access networks technology to become mesh networks. One of air interface standard is metropolitan area wireless broadband service. IEEE 802.16 is the basis for Worldwide Interoperability for Microwave ... Keywords: AAA, RuBee (IEEE 1902.1), WiMAX, gateway access point, group identity key

Tin-Yu Wu; Jhong-Ci Wu; Wei-Fang Weng

2008-09-01T23:59:59.000Z

72

BIG RU N INDIANA LAKESHORE RUN E LUMBER CIT Y WARSAW JOHNST  

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

RU RU N INDIANA LAKESHORE RUN E LUMBER CIT Y WARSAW JOHNST OWN BU RNSIDE MILLSTONE FROSTBUR G JUN EAU PLU MVILLE CHERRY HILL KAN E BOSWELL MAR ION CENT ER CREEKSIDE SALTSBUR G POINT N BLAIR SVILL E COU NCIL RU N SIGEL LEWISVILLE BEAR C REEK AR MBRUST OHIOPYLE HALLT ON BR OOKVILLE MAR KTON NOL O RAT HMEL COR SICA MAR CHAND SMIC KSBU RG HOWE APOLLO SEVEN SPRIN GS YAT ESBORO MCNEES LUCIND A GEORGE PIN EY LEEPER TIMBLIN WILL ET FERGUSON CLIMAX PANIC DAVY HILL TIDIOUT E GRAMPIAN SLIGO ROC KVI LLE MAYFIELD VANDERGRIF T GIRT Y SAY NEW SALEM WET MOR E COWANSHAN NOC K ST ILLWAT ER ELD ERS RIDGE BLAIR CARROLLT OWN BU RNIN G WELL COOKPORT MCCREA FU RNACE RIDGWAY NEW ALEXANDR IA IRISH RU N WILC OX PLU M CREEK PADDYTOWN KEATING HOR TON GUF FEY WH ITESBURG BET ULA SMELTZ ER ODONN ELL DECAT UR W HAZELHU RST ST RONGSTOWN COL EGROVE SH EFFIELD WERT Z H OLLOW RED HILL ULYSSES PLATT SVIL LE BR ANCH W LATR OBE LEID Y TRIU

73

A formally verified OS kernel. now what?  

Science Conference Proceedings (OSTI)

Last year, the L4.verified project produced a formal, machine-checked Isabelle/HOL proof that the C code of the seL4 OS microkernel correctly implements its abstract implementation. In my presentation I will summarise the proof together with its main ...

Gerwin Klein

2010-07-01T23:59:59.000Z

74

The effect of Ru and Sn additions to Pt on the electrocatalysis of methanol oxidation: An in situ XAS investigation  

DOE Green Energy (OSTI)

Elements such as Ru and Sn used as ad-atoms or as alloying elements are known to enhance methanol oxidation reaction (MOR). Ru, both as alloying element as well as upd deposited on Pt/C is widely acknowledged for enhancing MOR. Sn on the other hand is more controversial, with evidence indicating enhancements for MOR when present as upd layer and marginally effective when present as an alloying element. In situ XAS is used to investigate some of these inconsistencies in the electrocatalysis of MOR. Results indicate that alloying Sn with Pt (Pt{sub 3}Sn primary phase) causes partial filling of the Pt 5 d-band vacancies and increase in the Pt-Pt bond distances which is directly opposite to a similar situation with Ru. Upd Sn however does not perturb Pt structurally or electronically. Ru and Sn (both as alloying element and as upd ad-layer) are associated with oxygenated species, the nature and strength of the Ru. and Sn - oxygen interactions are potential dependent. Hence alloying with Sn renders Pt surface unfavorable for methanol adsorption in contrast to alloying with Ru. Both Ru and Sn however promote MOR via their ability to nucleate oxygenated species on their surface at lower potentials as compared to pure Pt.

Mukerjee, S.; McBreen, J.

1997-07-01T23:59:59.000Z

75

Oblique-incidence sputtering of Ru intermediate layer for decoupling of intergranular exchange in perpendicular recording media  

SciTech Connect

During the Ru deposition process for granular type perpendicular magnetic recording media, both a reduction in the Ru intermediate layer thickness and lowering of sputtering gas pressure were successfully achieved by focusing on a self-shadowing effect. Oblique-incidence sputtering with a 60 deg. incident angle under an Ar gas pressure of 0.6 Pa yielded (1) columnar Ru grains with a growth direction of 30 deg. from the film normal, (2) c-plane sheet texture by epitaxial growth on the Pt underlayer, and (3) a flat envelope of the surface and a deep gap at grain boundaries. This change in the Ru structure significantly contributes to reducing exchange coupling among magnetic grains, especially in the initial growth region in an overlying granular medium.

Saito, Shin; Inoue, Ken [Department of Electronic Engineering, Graduate School of Engineering, Tohoku University, 6-6-05, Aoba, Aramaki, Aoba-ku, Sendai 980-8579 Japan (Japan); Takahashi, Migaku [Department of Electronic Engineering, Graduate School of Engineering, Tohoku University, 6-6-05, Aoba, Aramaki, Aoba-ku, Sendai 980-8579 (Japan); Center for Nanobioengineering and Spintronics, Chungnam National University, 220, Gung-Dong, Yuseong-Gu., Daejeon, 305-764 (Korea, Republic of)

2011-04-01T23:59:59.000Z

76

What Controls the Phase Diagram and Superconductivity in Ru-Substituted BaFe2As2?  

SciTech Connect

We use high resolution angle-resolved photoemission to study the electronic structure of the iron based high-temperature superconductors Ba(Fe{sub 1-x}Ru{sub x}){sub 2}As{sub 2} as a function of Ru concentration. We find that substitution of Ru for Fe is isoelectronic, i.e., it does not change the value of the chemical potential. More interestingly, there are no measured, significant changes in the shape of the Fermi surface or in the Fermi velocity over a wide range of substitution levels (0 < x < 0.55). Given that the suppression of the antiferromagnetic and structural phase is associated with the emergence of the superconducting state, Ru substitution must achieve this via a mechanism that does not involve changes of the Fermi surface. We speculate that this mechanism relies on magnetic dilution which leads to the reduction of the effective Stoner enhancement.

Dhaka, R. S.; Liu, Chang; Fernandes, R.M.; Jiang, Riu; Strehlow, C.P.; Kondo, Takeshi; Thaler, A.; Schmalian, Joerg; Bud-ko, S.J.; Canfield, P.C.; Kaminski, A.

2011-12-23T23:59:59.000Z

77

Chemical Effect of Dry and Wet Cleaning of the Ru Protective Layer of the Extreme ultraviolet (EUV) Lithography Reflector  

E-Print Network (OSTI)

Park, Physical Chemistry Chemical Y.B. He, et al. , JournalChemical Effect of Dry and Wet Cleaning of the Ru ProtectiveBerkeley, California 94720 Chemical Sciences Division,

Belau, Leonid

2010-01-01T23:59:59.000Z

78

XPS and FTIR study of Ru/Al{sub 2}O{sub 3} and Ru/TiO{sub 2} catalysts: Reduction characteristics and interaction with a methane-oxygen mixture  

SciTech Connect

The oxidation state of alumina- and titania-supported Ru catalysts has been investigated as a function of reduction temperature, as well as by following the interaction with a methane-oxygen mixture at 773 and 973 K, employing XPS and FTIR techniques. It is found that the chemical behavior of Ru depends strongly on the material on which it is supported. Over Al{sub 2}O{sub 3}, ruthenium is incompletely reduced by treatment with hydrogen at 573 and 823 K, while oxidized Ru species are also detected following exposure of the catalyst to a methane-oxygen mixture at 773 and 973 K. In contrast, over TiO{sub 2}, ruthenium is more easily reduced and is stabilized in its reduced state following hydrogen treatment at 823 K. During treatment with the methane-oxygen mixture, no reoxidation of Ru occurs. The interaction between Ru and TiO{sub 2}, which inhibits the oxidation of ruthenium under conditions of partial oxidation of methane, is related to the unique ability of the Ru/TiO{sub 2} catalyst to promote the direct route of synthesis gas formation.

Elmasides, C.; Kondarides, D.I.; Verykios, X.E. [Univ. of Patras (Greece). Dept. of Chemical Engineering; Gruenert, W. [Ruhr-Universitaet Bochum (Germany). Lehrstuhl fuer Technische Chemie

1999-06-24T23:59:59.000Z

79

Cooperative application/OS DRAM fault recovery.  

Science Conference Proceedings (OSTI)

Exascale systems will present considerable fault-tolerance challenges to applications and system software. These systems are expected to suffer several hard and soft errors per day. Unfortunately, many fault-tolerance methods in use, such as rollback recovery, are unsuitable for many expected errors, for example DRAM failures. As a result, applications will need to address these resilience challenges to more effectively utilize future systems. In this paper, we describe work on a cross-layer application/OS framework to handle uncorrected memory errors. We illustrate the use of this framework through its integration with a new fault-tolerant iterative solver within the Trilinos library, and present initial convergence results.

Ferreira, Kurt Brian; Bridges, Patrick G. (University of New Mexico, Albuquerque, NM); Heroux, Michael Allen; Hoemmen, Mark; Brightwell, Ronald Brian

2012-05-01T23:59:59.000Z

80

Low-energy structure of the even-A {sup 96-104}Ru isotopes via g-factor measurements  

SciTech Connect

The transient-field-perturbed angular correlation technique was used with Coulomb excitation in inverse kinematics to perform a systematic measurement of the g factors of the first excited 2{sub 1}{sup +} states in the stable even-A isotopes {sup 96-104}Ru. The measurements have been made relative to one another under matched kinematic conditions and include a measurement of g(2{sub 1}{sup +})=+0.47(3) in {sup 96}Ru.

Taylor, M. J.; Bentley, M. A. [Department of Physics, University of York, York YO10 5DD (United Kingdom); Guerdal, G.; Kumbartzki, G.; Benczer-Koller, N.; Sharon, Y. Y. [Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903 (United States); Stuchbery, A. E. [Department of Nuclear Physics, RSPE, Australian National University, Canberra, Australian Capital Territory 0200 (Australia); Berant, Z. [Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520 (United States); Nuclear Research Center Negev, Beer-Sheva 84190 (Israel); Casperson, R. J.; Casten, R. F.; Heinz, A.; Ilie, G.; McCutchan, E. A.; Qian, J.; Werner, V.; Williams, E.; Winkler, R. [Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520 (United States); Luettke, R. [Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520 (United States); Technical University Darmstadt, Darmstadt 64277 (Germany); Shoraka, B. [Department of Physics, University of Surrey, Guildford GU2 7XH (United Kingdom); Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520 (United States)

2011-04-15T23:59:59.000Z

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81

Upper limit on spontaneous supercurrents in Sr2RuO4  

SciTech Connect

It is widely believed that the perovskite Sr{sub 2}RuO{sub 4} is an unconventional superconductor with broken time reversal symmetry. It has been predicted that superconductors with broken time reversal symmetry should have spontaneously generated supercurrents at edges and domain walls. We have done careful imaging of the magnetic fields above Sr{sub 2}RuO{sub 4} single crystals using scanning Hall bar and SQUID microscopies, and see no evidence for such spontaneously generated supercurrents. We use the results from our magnetic imaging to place upper limits on the spontaneously generated supercurrents at edges and domain walls as a function of domain size. For a single domain, this upper limit is below the predicted signal by two orders of magnitude. We speculate on the causes and implications of the lack of large spontaneous supercurrents in this very interesting superconducting system.

Chung, Suk Bum

2010-04-05T23:59:59.000Z

82

Hydrogen adsorption on Ru(001) studied by Scanning TunnelingMicroscopy  

SciTech Connect

The adsorption of hydrogen on Ru(001) was studied by scanning tunneling microscopy at temperatures around 50 K. Hydrogen was found to adsorb dissociatively forming different ordered structures as a function of coverage. In order of increasing coverage {theta} in monolayers (ML) these were ({radical}3 x {radical}3)r30{sup o} at {theta} = 0.3 ML; (2 x 1) at {theta} = 0.50 ML, (2 x 2)-3H at {theta} = 0.75, and (1 x 1) at {theta} = 1.00. Some of these structures were observed to coexist at intermediate coverage values. Close to saturation of 1 ML, H-vacancies (unoccupied three fold fcc hollow Ru sites) were observed either as single entities or forming transient aggregations. These vacancies diffuse and aggregate to form active sites for the dissociative adsorption of hydrogen.

Tatarkhanov, Mous; Rose, Franck; Fomin, Evgeny; Ogletree, D.Frank; Salmeron, Miquel

2008-01-18T23:59:59.000Z

83

Volume Profile for Intramolecular ET in Ru-Modified Cytochrome c  

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

for for Intramolecular Electron-Transfer Reactions: Tetraammine-ruthenium(ligand) Complexes of Cytochrome c Ji Sun, Chang Su, Martin Meier, Stephan S. Isied, James F. Wishart, and Rudi van Eldik Inorg. Chem. 37, 6129-6135 (1998) [Find paper at ACS Publications] Abstract: The kinetics and thermodynamics of a series of reversible intramolecular electron-transfer reactions in systems of the type trans-(NH3)4(L)Ru(His33)-Cyt c(hh) and trans-(NH3)4(L)Ru(His39)-Cyt c(Ck), where L represents NH3, isonicotinamide, 4-ethylpyridine, 3,5-lutidine and pyridine, were studied as a function of pressure in order to construct the first complete volume profiles for such processes. The volume profiles demonstrate a significant partial molar volume increase associated with the

84

Advanced Development of Certified OS Kernels  

E-Print Network (OSTI)

Operating System (OS) kernels form the bedrock of all system software—they can have the greatest impact on the resilience, extensibility, and security of today’s computing hosts. A single kernel bug can easily wreck the entire system’s integrity and protection. We propose to apply new advances in certified software [86] to the development of a novel OS kernel. Our certified kernel will offer safe and application-specific extensibility [8], provable security properties with information flow control, and accountability and recovery from hardware or application failures. Our certified kernel builds on proof-carrying code concepts [74], where a binary executable includes a rigorous machine-checkable proof that the software is free of bugs with respect to specific requirements. Unlike traditional verification systems, our certified software approach uses an expressive general-purpose meta-logic and machine-checkable proofs to support modular reasoning about sophisticated invariants. The rich meta-logic enables us to verify all kinds of low-level

Zhong Shao (pi; Bryan Ford (co-pi

2010-01-01T23:59:59.000Z

85

Ru L[subscript 2,3] XANES theoretical simulation with DFT: A test of the core-hole treatment  

SciTech Connect

Density functional theory (DFT)-based relativistic calculations were performed to model the Ru L-edge X-ray absorption near edge structure (XANES) spectra of the hexaammineruthenium complex [Ru(NH{sub 3}){sub 6}]{sup 3+} and 'blue dimer' water oxidation catalyst, cis,cis- [(bpy){sub 2}(H{sub 2}O)Ru{sup III}ORu{sup III}(OH{sub 2})(bpy){sub 2}]{sup 4+} (bpy is 2,2-bipyridine). Two computational approaches were compared: simulations without the core-hole and by modeling of the core-hole within the Z+1 approximation. Good agreement between calculated and experimental XANES spectra is achieved without including the core-hole. Simulations with algorithms beyond the Z+1 approximation were only possible in a framework of the scalar relativistic treatment. Time-dependent DFT (TD-DFT) was used to compute the Ru L-edge spectrum for [Ru(NH{sub 3}){sub 6}]{sup 3+} model compound. Three different core-hole treatments were compared in a real-space full multiple scattering XANES modeling within the Green function formalism (implemented in the FEFF9.5 package) for the [Ru(Mebimpy)(bpm)(H{sub 2}O)]{sup 2+} complex. The latter approaches worked well in cases where spin-orbit treatment of relativistic effects is not required.

Alperovich, Igor; Moonshiram, Dooshaye; Soldatov, Alexander; Pushkar, Yulia (SFU-Russia); (Purdue)

2012-10-09T23:59:59.000Z

86

Assessing a Spectroelectrochemical Sensor's Performance for Detecting [Ru(bpy)3]2+ in Natural and Treated Water  

Science Conference Proceedings (OSTI)

A spectroelectrochemical sensor that combines three modes of selectivity in a single device was evaluated in natural and treated water samples using tris-(2,2’-bipyridyl) ruthenium(II) dichloride hexahydrate, [Ru(bpy)3]2+, as a model analyte. The sensor was an optically transparent indium tin oxide (ITO) electrode coated with a thin film of partially sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (SSEBS). As the potential of the ITO electrode was cycled from +0.7 to +1.3 V, the analyte changed from the colored [Ru(bpy)3]2+ complex to colorless [Ru(bpy)3]3+ complex and the change in absorbance at 450 nm was used as the optical signal for quantification. Calibration curves were obtained for [Ru(bpy)3]2+ in natural well water, river water and treated tap water with detection limits of 108, 139 and 264 nM, respectively. A standard addition method was developed to determine an *unknown* spike addition concentration of [Ru(bpy)3]2+ in well water. The spectroelectrochemical sensor determined the concentration of [Ru(bpy)3]2+ spiked into a sample of Hanford well water to be 0.39*0.03 mM versus the actual concentration of 0.40 mM.

Abu, Eme A.; Bryan, Samuel A.; Seliskar, Carl J.; Heineman, William R.

2012-07-01T23:59:59.000Z

87

Methanol electro-oxidation on unsupported Pt-Ru alloys at different temperatures  

Science Conference Proceedings (OSTI)

A wide compositional range of unsupported platinum-ruthenium alloy catalysts were prepared by thermal decomposition of the chlorides and chloroacids. The electrocatalysts were characterized by cyclic voltammetry, X-ray diffraction, and energy-dispersive X-ray spectroscopy. The BET surface area of the electrocatalysts increases with increasing Ru content up to {approximately}70 atomic percent (a/o) and then reaches a plateau value. Electrodes fabricated from the electrocatalysts were also evaluated as anodes for methanol electro-oxidation in sulfuric acid over a range of temperatures. Unlike the situation for pure Pt, Ru is inactive for methanol electro-oxidation at 25 C but becomes active at higher temperatures. The peak current observed during an anodic potential scan gradually shifts to more cathodic potentials with increasing temperature. When a comparison is made on the basis of electrode geometric surface area, a {approximately}50 a/o ruthenium electrocatalyst provides the highest activity for methanol electro-oxidation at both 25 and 60C. The methanol electro-oxidation rate is 0.5 orders with respect to methanol concentration (between 0.1 and 2 M) for the Pt-Ru ({approximately}50:50) electrode.

Chu, D.; Gilman, S. [Army Research Lab., Fort Monmouth, NJ (United States). Physical Sciences Directorate

1996-05-01T23:59:59.000Z

88

Metal-and hydrogen-bonding competition during water absorption on Pd(111) and Ru(0001)  

SciTech Connect

The initial stages of water adsorption on the Pd(111) and Ru(0001) surfaces have been investigated experimentally by Scanning Tunneling Microscopy in the temperature range between 40 K and 130 K, and theoretically with Density Functional Theory (DFT) total energy calculations and STM image simulations. Below 125 K water dissociation does not occur at any appreciable rate and only molecular films are formed. Film growth starts by the formation of flat hexamer clusters where the molecules bind to the metal substrate through the O-lone pair while making H-bonds with neighboring molecules. As coverage increases, larger networks of linked hexagons are formed with a honeycomb structure, which requires a fraction of the water molecules to have their molecular plane perpendicular to the metal surface with reduced water-metal interaction. Energy minimization favors the growth of networks with limited width. As additional water molecules adsorb on the surface they attach to the periphery of existing islands, where they interact only weakly with the metal substrate. These molecules hop along the periphery of the clusters at intermediate temperatures. At higher temperatures they bind to the metal to continue the honeycomb growth. The water-Ru interaction is significantly stronger than the water-Pd interaction, which is consistent with the greater degree of hydrogen-bonded network formation and reduced water-metal bonding observed on Pd relative to Ru.

Tatarkhanov, Mouslim; Ogletree, D. Frank; Rose, Franck; Mitsui, Toshiyuki; Fomin, Evgeny; Rose, Mark; Cerda, Jorge I.; Salmeron, Miquel

2009-09-03T23:59:59.000Z

89

Water Induced Surface Reconstruction of the Oxygen (2x1) covered Ru(0001)  

DOE Green Energy (OSTI)

Low temperature scanning tunneling microscopy (STM) and density functional theory (DFT) were used to study the adsorption of water on a Ru(0001) surface covered with half monolayer of oxygen. The oxygen atoms occupy hcp sites in an ordered structure with (2x1) periodicity. DFT predicts that water is weakly bound to the unmodified surface, 86 meV compared to the ~;;200 meV water-water H-bond. Instead, we found that water adsorption causes a shift of half of the oxygen atoms from hcp sites to fcc sites, creating a honeycomb structure where water molecules bind strongly to the exposed Ru atoms. The energy cost of reconstructing the oxygen overlayer, around 230 meV per displaced oxygen atom, is more than compensated by the larger adsorption energy of water on the newly exposed Ru atoms. Water forms hydrogen bonds with the fcc O atoms in a (4x2) superstructure due to alternating orientations of the molecules. Heating to 185 K results in the complete desorption of the water layer, leaving behind the oxygen honeycomb structure, which is metastable relative to the original (2x1). This stable structure is not recovered until after heating to temperatures close to 260K.

Maier, Sabine; Cabrera-Sanfelix, Pepa; Stass, Ingeborg; Sanchez-Portal, Daniel; Arnau, Andres; Salmeron, Miquel

2010-08-06T23:59:59.000Z

90

Water adsorption on O(2x2)/Ru(0001) from STM experiments andfirst-principles calculations  

DOE Green Energy (OSTI)

We present a combined theoretical and experimental study of water adsorption on Ru(0001) pre-covered with 0.25 monolayers (ML) of oxygen forming a (2 x 2) structure. Several structures were analyzed by means of Density Functional Theory calculations for which STM simulations were performed and compared with experimental data. Up to 0.25 monolayers the molecules bind to the exposed Ru atoms of the 2 x 2 unit cell via the lone pair orbitals. The molecular plane is almost parallel to the surface with its H atoms pointing towards the chemisorbed O atoms of the 2 x 2 unit cell forming hydrogen bonds. The existence of these additional hydrogen bonds increases the adsorption energy of the water molecule to approximately 616 meV, which is {approx}220 meV more stable than on the clean Ru(0001) surface with a similar configuration. The binding energy shows only a weak dependence on water coverage, with a shallow minimum for a row structure at 0.125 ML. This is consistent with the STM experiments that show a tendency of the molecules to form linear rows at intermediate coverage. Our calculations also suggest the possible formation of water dimers near 0.25 ML.

Cabrera-Sanfelix, P.; Sanchez-Portal, D.; Mugarza, A.; Shimizu,T.K.; Salmeron, M.; Arnau, A.

2007-10-15T23:59:59.000Z

91

Design and experience with the WS/HS assembly movement using labview VIS, national instrument motion controllers, and compumotor electronic drive units and motors  

SciTech Connect

The Low-Energy Demonstration Accelerator (LEDA), designed and built at the Los Alamos National Laboratory, is part of the Accelerator Production of Tritium (APT) program and provides a platform for measuring high-power proton beam-halo formation. The technique used for measuring the beam halo employs nine combination Wire Scanner and Halo Scraper (WS/HS) devices. This paper will focus on the experience gained in the use of National Instrument (NI) LabVIEW VIs and motion controllers, and Compumotor electronic drive units and motors. The base configuration couples a Compumotor motor driven by a Parker-Hannifin Gemini GT Drive unit. The drive unit is controlled by a NI PXI-7344 controller card, which in turn is controlled by a PC running custom built NI LabVIEW VIs. The function of the control VI's is to interpret instructions from the main control system, the Experimental Physics and Industrial Control System (EPICS), and carry out the corresponding motion commands. The main control VI has to run all nineteen WS/HS motor axes used in the accelerator. A basic discussion of the main accelerator control system, EPICs which is hosted on a VXI platform, and its interface with the PC based LabVIEW motion control software will be included.

Day, L. A. (Lisa A.); Gilpatrick, J. D. (John Douglas); Gruchalla, M. (Michael); Martinez, D. G. (Derwin G.); O' Hara, J. F. (James F.); Shurter, R. B. (Robert B.); Stettler, M. W. (Matthew W.); Valdiviez, R. (Robert); Barr, D. S. (Dean S.)

2001-01-01T23:59:59.000Z

92

The nature and alternate rates of the ribulose 1,5-bisphosphate (RuBP) carboxylase/oxygenase (Rubisco) oxygenation intermediate  

SciTech Connect

Mutant ribulose 1,5-bisphosphate (RuBP) were employed to investigate the partitioning of carbon flow between photosynthesis or photorespiration. Previous functional and structural studies implicate active site Lys329 and Glu48 or R. rubrum RuBp in promoting addition of CO2 to the RuBP-enediol. Two novel O2-dependent side products generated by the K329A and E49Q mutants provided insight into RuBP oxygenase intermediate and roles of Lys329 and Glu48 in oxygenation.

Harpel, M.R.; Chen, Yuh-Ru; Hartman, F.C.

1995-12-31T23:59:59.000Z

93

Inside Mac OS X Lion Troubleshooting: Real Solutions for Mac OS X Users, 1st edition  

Science Conference Proceedings (OSTI)

Despite Mac OS X's ease-of-use, Mac users frequently encounter frustrating problems with their systems. And, when they do, they frequently have to resort to online forums (if they can get online), or trek to the Apple Store and wait for a "Genius" to ...

Matt Washchuk

2012-04-01T23:59:59.000Z

94

First search for double-beta decay of 184Os and 192Os  

E-Print Network (OSTI)

A search for double-beta decay of osmium has been realized for the first time with the help of an ultra-low background HPGe gamma detector at the underground Gran Sasso National Laboratories of the INFN (Italy). After 2741 h of data taking with a 173 g ultra-pure osmium sample limits on double-beta processes in 184Os have been established at the level of T_{1/2} about 10^{14}-10^{17} yr. Possible resonant double-electron captures in 184Os were searched for with a sensitivity T_{1/2} about 10^{16} yr. A half-life limit T_{1/2} > 5.3 10^{19} yr was set for the double-beta decay of 192Os to the first excited level of 192Pt. The radiopurity of the osmium sample has been investigated and radionuclides 137Cs, 185Os and 207Bi were detected in the sample, while activities of 40K, 60Co, 226Ra and 232Th were limited at the mBq/kg level.

P. Belli; R. Bernabei; F. Cappella; R. Cerulli; F. A. Danevich; S. d'Angelo; A. Di Marco; A. Incicchitti; G. P. Kovtun; N. G. Kovtun; M. Laubenstein; D. V. Poda; O. G. Polischuk; A. P. Shcherban; V. I. Tretyak

2013-01-15T23:59:59.000Z

95

Structure and Reactions of Carbon and Hydrogen on Ru(0001): A Scanning Tunneling Microscopy Study  

DOE Green Energy (OSTI)

The interaction between carbon and hydrogen atoms on a Ru(0001) surface was studied using scanning tunneling microscopy (STM), Density Functional Theory (DFT) and STM image calculations. Formation of CH species by reaction between adsorbed H and C was observed to occur readily at 100 K. When the coverage of H increased new complexes of the form CH+nH (n = 1, 2 and 3) were observed. These complexes, never observed before, might be precursors for further hydrogenation reactions. DFT analysis reveals that a considerable energy barrier exists for the CH+H {yields} CH{sub 2} reaction.

Shimizu, Tomoko K.; Mugarza, Aitor; Cerda, Jorge; Salmeron, Miquel

2008-09-09T23:59:59.000Z

96

STATISTICAL EVALUATION OF PROCESSING DATA FROM THE RH RU HG MATRIX STUDY  

DOE Green Energy (OSTI)

An evaluation of the statistical significance of Rh, Ru, and Hg on DWPF Sludge Receipt and Adjustment Tank (SRAT) cycle catalytic hydrogen generation and process chemistry was conducted by the Savannah River National Laboratory (SRNL) using a full-factorial experimental design. This test design can identify significant interactions between these three species in addition to individual effects. Statistical modeling of data from the Rh-Ru-Hg matrix study has been completed. Preliminary data and conclusions were given in an earlier report. This final report concludes the work on the Rh-Ru-Hg matrix study. Modeling results are summarized below. Rhodium was found to: Promote increased total hydrogen mass; Promote an increase in the maximum hydrogen generation rate; Promote an increase in the hydrogen generation rate shortly after acid addition; Shorten the elapsed time between acid addition and the maximum hydrogen generation rate; Increase formate loss; Inhibit NO{sub 2} and total NO{sub x} off-gas species formation; and Reduce nitrite-to-nitrate conversion. Ruthenium was found to: Promote increased total hydrogen mass; Promote an increase in the maximum hydrogen generation rate; Promote an increase in the hydrogen generation rate in the second half of the SRAT cycle; Promote an increase in total CO{sub 2} generated; Increase formate loss; Promote NO{sub 2} and total NO{sub x} off-gas species formation; and Reduce nitrite-to-nitrate conversion. Mercury was found to: Inhibit total hydrogen mass produced; Promote an increase in total CO{sub 2} generated; Promote NO{sub 2} off-gas species formation; and Inhibit total NO{sub x} off-gas species formation. Results confirmed qualitative observations that Rh was activating before Ru for hydrogen generation. An interaction between Rh and Ru was present in the model for the total hydrogen generated during the SRAT, perhaps because the total combined contributions from two separate episodes of hydrogen generation. The first episode was dominated by Rh and the second by Ru. Consequently, the linear statistical model was asked to explain more than one phenomenon and included more terms. Mercury did not significantly impact hydrogen generated by either Rh or Ru in models in this study (all tests had Hg {ge} 0.5 wt% in total solids), whereas tests in Sludge Batches 3 and 4 (SB3 and SB4) with and without Hg showed a very significant negative impact from adding Hg. The conclusion is that once a small quantity of Hg is present, the primary inhibiting effect of Hg is in place, and hydrogen generation is relatively insensitive to further increases in total Hg. Any secondary Hg effects were difficult to quantify and model. Mercury was found to be statistically significant, however, as an inhibiting factor for hydrogen generation when modeling was based on the logarithm of the hydrogen generation rate. Only limited statistical evidence was found for non-linearity and quadratic dependence of other SRAT process measures, such as formate loss or total NO{sub x} generation, on the three matrix variables. The interaction term for Ru with Hg, however, appeared in models for total CO{sub 2}, total NO{sub 2}, and total moles of nitrogen-derived off-gas species. A single interaction between Ru and Hg during nitrite destruction could explain all three of these effects in the observed responses. Catalytic decomposition of nitrite ion by formic acid produces CO{sub 2} plus either NO or N{sub 2}O. The vast majority of the NO produced is converted to NO{sub 2}, and NO{sub 2} is the major fraction of the total moles of nitrogen in the off-gas species. Future experimental work related to catalytic hydrogen generation control is expected with regard to minimizing formic acid use through alternative reductants as well as in pursuing mesoporous media for sequestering the catalytically active noble metals to inhibit catalytic hydrogen generation. Two alternative stoichiometric acid equations are also under development. A summary document is in draft form that provides an overview of progress made in understanding ca

Koopman, D

2009-04-17T23:59:59.000Z

97

Observation of ferromagnetic resonance in strontium ruthenate (SrRuO3)  

SciTech Connect

We report the observation of ferromagnetic resonance (FMR) in SrRuO3 using the time-resolved magnetooptical Kerr effect. The FMR oscillations in the time-domain appear in response to a sudden, optically induced change in the direction of easy-axis anistropy. The high FMR frequency, 250 GHz, and large Gilbert damping parameter, alpha ~;; 1, are consistent with strong spin-orbit coupling. We find that the parameters associated with the magnetization dynamics, including alpha, have a non-monotonic temperature dependence, suggestive of a link to the anomalous Hall effect.

Langner, Matthew C.; Kantner, Colleen L.S.; Chu, Y.H.; Martin, Lane M.; Yu, Pu; Ramesh, R.; Orenstein, Joe

2008-12-03T23:59:59.000Z

98

Characterization and electrocatalytic properties of titanium-based Ru0.3Co0.7-xCex mixed oxide electrodes for oxygen evolution in alkaline solution  

Science Conference Proceedings (OSTI)

Ti-supported RuO2-Co3O4-CeO2 (Ru0.3Co0.7-xCex oxide, 0 ? x ? 0.7) electrodes were prepared by sol-gel process. The phase structure, surface ...

Hongjun Wu; Qin Ruan; Li Li; Baohui Wang

2011-01-01T23:59:59.000Z

99

The structure of mixed H2O-OH monolayer films on Ru(0001)  

Science Conference Proceedings (OSTI)

Scanning tunneling microscopy (STM) and x-ray absorption spectroscopy (XAS) have been used to study the structures produced by water on Ru(0001) at temperatures above 140 K. It was found that while undissociated water layers are metastable below 140 K, heating above this temperature produces drastic transformations whereby a fraction of the water molecules partially dissociate and form mixed H{sub 2}O-OH structures. XPS and XAS revealed the presence of hydroxyl groups with their O-H bond essentially parallel to the surface. STM images show that the mixed H{sub 2}O-OH structures consist of long narrow stripes aligned with the three crystallographic directions perpendicular to the close-packed atomic rows of the Ru(0001) substrate. The internal structure of the stripes is a honeycomb network of H-bonded water and hydroxyl species. We found that the metastable low temperature molecular phase can also be converted to a mixed H{sub 2}O-OH phase through excitation by the tunneling electrons when their energy is 0.5 eV or higher above the Fermi level. Structural models based on the STM images were used for Density Functional Theory optimizations of the stripe geometry. The optimized geometry was then utilized to calculate STM images for comparison with the experiment.

Tatarkhanov, M.; Fomin, E.; Salmeron, M.; Andersson, K.; Ogasawara, H.; Pettersson, L.G.M.; Nilsson, A.; Cerda, J.I.

2008-10-20T23:59:59.000Z

100

The Structure of Mixed H(2)O-OH Monolayer Films on Ru (0001)  

Science Conference Proceedings (OSTI)

Scanning tunneling microscopy (STM) and x-ray absorption spectroscopy (XAS) have been used to study the structures produced by water on Ru(0001) at temperatures above 140 K. It was found that while undissociated water layers are metastable below 140 K, heating above this temperature produces drastic transformations, whereby a fraction of the water molecules partially dissociate and form mixed H{sub 2}O-OH structures. X-ray photoelectron spectroscopy and XAS revealed the presence of hydroxyl groups with their O-H bond essentially parallel to the surface. STM images show that the mixed H{sub 2}O-OH structures consist of long narrow stripes aligned with the three crystallographic directions perpendicular to the close-packed atomic rows of the Ru(0001) substrate. The internal structure of the stripes is a honeycomb network of H-bonded water and hydroxyl species. We found that the metastable low temperature molecular phase can also be converted to a mixed H{sub 2}O-OH phase through excitation by the tunneling electrons when their energy is 0.5 eV or higher above the Fermi level. Structural models based on the STM images were used for density functional theory optimizations of the stripe geometry. The optimized geometry was then utilized to calculate STM images for comparison with the experiment.

Tatarkhanov, M.; Fomin, E.; Salmeron, M.; Andersson, K.; Ogasawara, H.; Pettersson, L.G.M.; Nilsson, A.; Cerda, J.I.

2009-05-26T23:59:59.000Z

Note: This page contains sample records for the topic "ru os hs" from the National Library of EnergyBeta (NLEBeta).
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101

Dependence of Electronic Structure of SrRuO3 and the Degree of Correlation on Cation Off-Stoichiometry  

Science Conference Proceedings (OSTI)

We have grown and studied high quality SrRuO{sub 3} films grown by MBE as well as PLD. By changing the oxygen activity during deposition we were able to make SrRuO{sub 3} samples that were stoichiometric (low oxygen activity) or with ruthenium vacancies (high oxygen activity). Samples with strontium vacancies were found impossible to produce since the ruthenium would precipitate out as RuO{sub 2}. The volume of the unit cell of SrRuO{sub 3} becomes larger as more ruthenium vacancies are introduced. The residual resistivity ratio (RRR) and room temperature resistivity were found to systematically depend on the volume of the unit cell and therefore on the amount of ruthenium vacancies. The RRR varied from {approx}30 for stoichiometric samples to less than two for samples that were very ruthenium poor. The room temperature resistivity varied from 190 {micro}{Omega} cm for stoichoimetric samples to over 300 {micro}{Omega} cm for very ruthenium poor samples. UPS spectra show a shift of weight from the coherent peak to the incoherent peak around the Fermi level when samples have more ruthenium vacancies. Core level XPS spectra of the ruthenium 3d lines show a strong screened part in the case of stoichiometric samples. This screened part disappears when ruthenium vacancies are introduced. Both the UPS and the XPS results are consistent with the view that correlation increases as the amount of ruthenium vacancies increase.

Siemons, W.

2011-08-19T23:59:59.000Z

102

Up-Hill ET in (NH3)5Ru(III)-Modified Ferrocytochrome c  

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

Up-Hill Electron Transfer in Pentaammineruthenium(III)-Modified Up-Hill Electron Transfer in Pentaammineruthenium(III)-Modified Ferrocytochrome c: Rates, Thermodynamics, and the Mediating Role of the Ruthenium Moiety Ji Sun, James F. Wishart, and Stephan S. Isied Inorg. Chem. 34, 3998-4000 (1995) Abstract: At moderate to high ionic strengths (>0.1 M), Co(oxalate)33- oxidizes native cytochrome c very slowly, however it undergoes a rapid reaction with pendant ruthenium complexes covalently attached to the surface of the protein. Under these conditions, the rate of the thermodynamically unfavorable (up-hill) FeII-to-RuIII electron transfer process in pentaammineruthenium-modified horse-heart cytochrome c can be revealed using sufficiently high Co(oxalate) 33- concentrations. Rate measurements performed over a wide range of CoIII concentrations confirm the proposed

103

Enhancement of magnetoresistance using CoFe/Ru/CoFe synthetic ferrimagnetic pinned layer in BiFeO{sub 3} based spin-valves  

SciTech Connect

SrTiO{sub 3} (100) sub/BiFeO{sub 3}/CoFe/Ru/CoFe/Cu/CoFe/Ta structure was prepared by a combination of chemical solution deposition and sputtering method, and followed by a systematical investigation for the structural, magnetic and magnetoresistance properties at room temperature (RT) as a function of CoFe and Ru thicknesses. It was revealed that introduction of synthetic CoFe/Ru/CoFe as a pinning layer increased the giant magentoresistance (MR) ratio to 8.3% at RT. This enhancement of MR ratio might be attributed to (i) the increase of pinning field, and (ii) suppression of the influence of the surface roughness of BiFeO{sub 3} by inserting the synthetic CoFe/Ru/CoFe layer.

Naganuma, Hiroshi; Kubota, Miho; Inami, Nobuhito; Kawada, Yuki; Oogane, Mikihiko; Ando, Yasuo [Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba Aramaki Aoba-ku, Sendai 980-8579 (Japan); Bae, In-Tae [Small Scale Systems Integration and Packaging Center, State University of New York at Binghamton, Binghamton, New York 13902 (United States); Miyazaki, Takamichi [Tohoku University, Department of Instrumental Analysis, 6-6-11 Aoba, Aramaki, Aoba, Sendai 980-8579 (Japan); Mizukami, Shigemi [WPI Advanced Institute for Materials Research, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 (Japan); Han, X. F. [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)

2012-08-13T23:59:59.000Z

104

Pt3Ru6 Clusters Supported on gamma-Al2O3: Synthesis from Pt3Ru6(Cu)21(u3-H)(u-H)3, Structural Characterization, and Catalysis of Ethylene Hydrogenation and n-Butane Hydrogenolysis  

SciTech Connect

The supported clusters Pt-Ru/{gamma}-Al{sub 2}O{sub 3} were prepared by adsorption of the bimetallic precursor Pt{sub 3}Ru{sub 6}(Cu){sub 21}({mu}{sub 3}-H)({mu}-H){sub 3} from CH{sub 2}Cl{sub 2} solution onto {gamma}-Al{sub 2}O{sub 3} followed by decarbonylation in He at 300 C. The resultant supported clusters were characterized by infrared (IR) and extended X-ray absorption fine structure (EXAFS) spectroscopies and as catalysts for ethylene hydrogenation and n-butane hydrogenolysis. After adsorption, the {nu}{sub CO} peaks characterizing the precursor shifted to lower wavenumbers, and some of the hydroxyl bands of the support disappeared or changed, indicating that the CO ligands of the precursor interacted with support hydroxyl groups. The EXAFS results show that the metal core of the precursor remained essentially unchanged upon adsorption, but there were distortions of the metal core indicated by changes in the metal-metal distances. After decarbonylation of the supported clusters, the EXAFS data indicated that Pt and Ru atoms interacted with support oxygen atoms and that about half of the Pt-Ru bonds were maintained, with the composition of the metal frame remaining almost unchanged. The decarbonylated supported bimetallic clusters reported here are the first having essentially the same metal core composition as that of a precursor metal carbonyl, and they appear to be the best-defined supported bimetallic clusters. The material was found to be an active catalyst for ethylene hydrogenation and n-butane hydrogenolysis under conditions mild enough to prevent substantial cluster disruption.

Chotisuwan,S.; Wittayakun, J.; Gates, B.

2006-01-01T23:59:59.000Z

105

HS_Coal_Studyguide.indd  

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

Coal Coal Fossil Energy Study Guide: Coal Coal is the most plentiful fuel in the fossil family. The United States has more coal reserves than any other country in the world. In fact, one-fourth of all known coal in the world is in the United States, with large deposits located in 38 states. The United States has almost as much energ y in coal that can be mined as the rest of the world has in oil that can be pumped from the ground. TYPES OF COAL Coal is a black rock made up of large amounts of carbon. Like all fossil fuels, coal can be burned to release energy. Coal contains elements such as hydrogen, oxygen, and nitrogen; has various amounts of minerals; and is itself considered to be a mineral of organic origin. Due to the variety of materials buried over time in the

106

HS_Oil_Studyguide.indd  

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

Oil Oil Fossil Energy Study Guide: Oil Pet roleum-or cr ude oil-is a fossil fuel that is found in large quantities beneath the Earth's sur face and is often used as a fuel or raw material in the chemical indust r y. It is a smelly, yellow-to-black liquid and is usually found in underg round areas called reser voirs. If you could look down an oil well and see oil where Nature created it, you might be surprised. You wouldn't see a big underground lake, as a lot of people think. Oil doesn't exist in deep, black pools. In fact, an underground oil formation-an "oil reservoir"-looks very much like any other rock formation. Oil exists in this underground formation as tiny droplets trapped inside the open spaces, called "pores," inside rocks. Th

107

Suhr 7900.955 L*E+ru Pkzza. S. Iv.. Washington, D.C. 20024-i  

Office of Legacy Management (LM)

Suhr 7900.955 L*E+ru Pkzza. S. Iv.. Washington, D.C. 20024-i Suhr 7900.955 L*E+ru Pkzza. S. Iv.. Washington, D.C. 20024-i 7117~03.8J.cdy.4 23 September 19E M r. Andrew Wallo, III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear M r. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UN11 The attached elimination recommendation was prepar with your suggestion during our meeting on 22 September includes 26 colleges and universities identified.in Enc Aerospace letter subject: Status of Actions - F&RAP ! 27 May 1987; three institutions (Tufts College, Univerr and the University of Washington) currently identified list of sites under consideration; and six institution: tified during a search of Hanford records. The attached was prepared to document the eliminai

108

Project RU LlSON COPY ON-SITE RADIOLOGICAL PROGRAMS DURING REENTRY DISILLING THROUGH PRODUCTION TESTING  

Office of Legacy Management (LM)

RU LlSON RU LlSON COPY ON-SITE RADIOLOGICAL PROGRAMS DURING REENTRY DISILLING THROUGH PRODUCTION TESTING FINAL REPOAT EBERLlNE INSTRUMENT CORPORATION Santa Fe, New Mexico Date Published - December 1973 PREPARED FOR THE U. S. ATOMIC ENERGY COMMISSION N E V A D A OPERATIONS OFFICE UNDER CONTRACT NO. AT(26-11-294 DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. Project RULISON ON-S1l'E RADIOLOGICAL PROGRAMS D U R I N G R E E N T R Y D R I L L I N G THROUGH PRODUCTION TESTING \ F I N A L REPORT EBERLINE INSTRUMENT CORPORATION . Santa Fe, New Mexico 1 Date Published - December 1973 NEVADA OPERATIONS OFFICE . UNDER CONTRACT NO. AT(26-11-294 NOTICE ~~~~ This report was prepared as an account of work sponsored by the United

109

Effect of crystallinity and nonstoichiometric region on dielectric properties of SrTiO{sub 3} films formed on Ru  

Science Conference Proceedings (OSTI)

The dielectric constant depending on the film thickness for SrTiO{sub 3} films formed on Ru was investigated after an annealing step at 600 deg. C, which shows that the dielectric constant increased abruptly with the film thickness up to 20 nm and then increased slightly, remaining relatively constant at a value of about 65. The abrupt increase was due to the crystallinity of SrTiO{sub 3} films. On the other hand, the slight increase was related to the existence of nonstoichiometric region near the interface of SrTiO{sub 3} film and Ru, which was intermixed with SrTiO{sub 3} and Ti-O phases having an equivalent oxide thickness over 0.32 nm.

Kim, Ja-Yong; Ahn, Ji-Hoon; Kang, Sang-Won; Kim, Jin-Hyock; Roh, Jae-Sung [Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701 (Korea, Republic of); Hynix Semiconductor Incorporated, San 136-1, Ami-ri, Bubal-eub, Icheon-si, Kyoungki-do 467-701 (Korea, Republic of)

2007-08-27T23:59:59.000Z

110

Photophysical Studies of Ru(II)tris(2,2;#8242;-bipyridine) Confined within a Zn(II)?Trimesic Acid Polyhedral Metal?Organic Framework  

Science Conference Proceedings (OSTI)

The ability to confine photoactive catalysts within metal-organic framework (MOF) materials affords the opportunity to expand the functional diversity of these materials into solar based applications. Here, the confinement of Ru(II)tris(2,2'-bipyridine) (RuBpy) by a MOF material derived from Zn(II) ions and trimesic acid (hereafter, USF2) is examined. Although the encapsulated RuBpy could not be crystallographically resolved within the MOF framework, the photophysical properties of the complex are characteristic of confinement including extended triplet metal-to-ligand ({sup 3}MLCT) lifetime ({tau}{sub ethanol} = 614 ns and {tau}{sub USF2} = 1.2 {micro}s at 25 C) and a slight hypsochromic shift in the steady-state emission spectrum relative to RuBpy in ethanol. The extended lifetime is attributed to a deactivation of a nonradiative {sup 3}dd that is antibonding with respect to the Ru(II)-bipyridine due to a confined molecular environment. These results represent one of the first examples of RuBpy encapsulation and photophysical characterization within a polyhedral MOF material.

Larsen, Randy W.; Wojtas, Lukasz (USF)

2012-10-25T23:59:59.000Z

111

Sorption of carboxylic acid from carboxylic salt solutions at pHs close to or above the pK[sub a] of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine  

DOE Patents (OSTI)

Carboxylic acids are sorbed from aqueous feedstocks at pHs close to or above the acids' pH[sub a] into a strongly basic organic liquid phase or onto a basic solid adsorbent or moderately basic ion exchange resin. The acids are freed from the sorbent phase by treating it with aqueous alkylamine or ammonia thus forming an alkylammonium or ammonium carboxylate which dewatered and decomposed to the desired carboxylic acid and the alkylamine or ammonia. 8 figs.

King, C.J.; Tung, L.A.

1992-07-21T23:59:59.000Z

112

Electromagnetic properties of the first 2{sub 1}{sup +} excited states in {sup 100,102,104}Ru  

Science Conference Proceedings (OSTI)

Measurements of Coulomb excitation probabilities of the first 2{sub 1}{sup +} state of {sup 100,102,104}Ru were carried out using back-scattered ions of {sup 4}He and {sup 16}O. The static quadrupole moments Q{sub 2{sub 1}{sup +}} and the reduced transition probabilities B(E2;0{sub 1}{sup +}{r_arrow}2{sub 1}{sup +}) have been determined using the reorientation effect. The quadrupole moments Q{sub 2{sub 1}{sup +}} deduced for the positive sign of the 2{sub 2}{sup +} interference term are {minus}0.54{plus_minus}0.07 eb, {minus}0.64{plus_minus}0.05 eb, {minus}0.62{plus_minus}0.08 eb for {sup 100}Ru, {sup 102}Ru, and {sup 104}Ru, respectively. The reduced transition probabilities B(E2;0{sub 1}{sup +}{r_arrow}2{sub 1}{sup +}) are 0.493{plus_minus}0.003 e{sup 2}b{sup 2}, 0.614{plus_minus}0.004 e{sup 2}b{sup 2}, and 0.809{plus_minus}0.006 e{sup 2}b{sup 2}, respectively. A compilation of the available experimental results for the reduced eletric quadrupole transition probability B(E2;0{sub 1}{sup +}{r_arrow}2{sub 1}{sup +}) and for the static quadrupole moments Q{sub 2{sub 1}{sup +}} for the even ruthenium stable isotopes (96{le}A{le}104) are presented. {copyright} {ital 1998} {ital The American Physical Society}

Hirata, J.H.; Salem-Vasconcelos, S.; Bechara, M.J.; Gomes, L.C.; Dietzsch, O. [Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, Sao Paulo, SP 05315-970 (Brazil)] [Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, Sao Paulo, SP 05315-970 (Brazil)

1998-01-01T23:59:59.000Z

113

Effective thermal boundary resistance from thermal decoupling of magnons and phonons in SrRuO3 thin films  

SciTech Connect

We use the time-resolved magneto-optical Kerr effect (TRMOKE) to measure the local temperature and heat flow dynamics in ferromagnetic SrRuO3 thin films. After heating by a pump pulse, the film temperature decays exponentially, indicating that the heat flow out of the film is limited by the film/substrate interface. We show that this behavior is consistent with an effective boundary resistance resulting from disequilibrium between the spin and phonon temperatures in the film.

Langner, M.C.; Kantner, C.L.S.; Chu, Y.H.; Martin, L.M.; Yu, P.; Ramesh, R.; Orenstein, J.

2010-01-20T23:59:59.000Z

114

A dynamic aspect-oriented system for OS kernels  

Science Conference Proceedings (OSTI)

We propose a dynamic aspect-oriented system for operating system (OS) kernels written in the C language. Unlike other similar systems, our system named KLASY allows the users to pointcut not only function calls but also member accesses to structures. ... Keywords: Linux, aspect-oriented programming, dynamic AOP, operating system, profiling and debugging

Yoshisato Yanagisawa; Kenichi Kourai; Shigeru Chiba

2006-10-01T23:59:59.000Z

115

Isotopic tracer studies of Fischer-Tropsch Synthesis over Ru/TiO sub 2 catalysts  

DOE Green Energy (OSTI)

Fischer-Tropsch synthesis is a process in which CO and H{sub 2} react to give predominantly liquid hydrocarbons. The reaction can be considered a special type of polymerization in which the monomer is produced in situ, and chain growth occurs by a sequence of independently repeated additions of the monomer to the growing chain. A investigation has been conducted to study the CO hydrogenation reaction in order to better understand catalyst deactivation and the elementary surface processes involved in chain growth. Isotopic tracers are used in conjunction with transient-response techniques in this study of Fischer-Tropsch synthesis over Ru/TiO{sub 2} catalysts. Experiments are conducted at a total pressure of 1 atmosphere, reaction temperatures of 453--498 K and D{sub 2}/CO (or H{sub 2}/CO) ratios of 2--5. Synthesis products are analyzed by gas chromatography or isotope-ratio gas chromatography-mass spectrometry. Rate constants for chain initiation, propagation and termination are evaluated under steady-state reaction conditions by using transients in isotopic composition. The activation energy for chain termination is much higher than that for propagation, accounting for the observed decrease in the chain growth parameter are also estimated. Coverages by reaction intermediates are also estimated. When small amounts of {sup 12}C-labelled ethylene are added to {sup 13}CO/H{sub 2} synthesis gas, ethylene acts as the sole chain initiator. Ethylene-derived carbon also accounts for 45% of the C{sub 1} monomer pool. 102 refs., 29 figs., 11 tabs.

Krishna, K.R.

1992-01-01T23:59:59.000Z

116

Isotopic tracer studies of Fischer-Tropsch Synthesis over Ru/TiO{sub 2} catalysts  

DOE Green Energy (OSTI)

Fischer-Tropsch synthesis is a process in which CO and H{sub 2} react to give predominantly liquid hydrocarbons. The reaction can be considered a special type of polymerization in which the monomer is produced in situ, and chain growth occurs by a sequence of independently repeated additions of the monomer to the growing chain. A investigation has been conducted to study the CO hydrogenation reaction in order to better understand catalyst deactivation and the elementary surface processes involved in chain growth. Isotopic tracers are used in conjunction with transient-response techniques in this study of Fischer-Tropsch synthesis over Ru/TiO{sub 2} catalysts. Experiments are conducted at a total pressure of 1 atmosphere, reaction temperatures of 453--498 K and D{sub 2}/CO (or H{sub 2}/CO) ratios of 2--5. Synthesis products are analyzed by gas chromatography or isotope-ratio gas chromatography-mass spectrometry. Rate constants for chain initiation, propagation and termination are evaluated under steady-state reaction conditions by using transients in isotopic composition. The activation energy for chain termination is much higher than that for propagation, accounting for the observed decrease in the chain growth parameter are also estimated. Coverages by reaction intermediates are also estimated. When small amounts of {sup 12}C-labelled ethylene are added to {sup 13}CO/H{sub 2} synthesis gas, ethylene acts as the sole chain initiator. Ethylene-derived carbon also accounts for 45% of the C{sub 1} monomer pool. 102 refs., 29 figs., 11 tabs.

Krishna, K.R.

1992-01-01T23:59:59.000Z

117

Zn-Doped RuO2 Electrocatalyts for Selective Oxygen Evolution: Relationship Between Local Structure and Electrocatalytic Behavior in Chloride Containing Media  

SciTech Connect

Nanocrystalline electrocatalytically active materials of chemical composition Ru{sub 1-x}Zn{sub x}O{sub 2} (0 < x < 0.3) were synthesized by freeze-drying technique. The diffraction patterns of the prepared samples corresponded to single-phase rutile type oxides.Local structure of the Ru{sub 1-x}Zn{sub x}O{sub 2} based on refinement of Ru K and Zn K edge EXAFS functions shows clustering of the Zn ions in the blocks with ilmenite structure intergrowing with Ru-rich rutile blocks. Ru{sub 1-x}Zn{sub x}O{sub 2} oxides are selective catalysts for anodic oxygen evolution. The selectivity toward oxygen evolution in the presence of chlorides is affected by the actual Zn content and can be ascribed to structural hindrance of the formation of the surface peroxo group based active sites for chlorine evolution. The selectivity toward oxygen evolution in presence of chlorides is accompanied by the drop of the total activity, which gets more pronounced with increasing Zn content.

V Petrykin; K Macounova; J Franc; O Shlyakhtin; M Klementova; S Mukerjee; p Krtil

2011-12-31T23:59:59.000Z

118

Preparation and electrical properties of xCaRuO{sub 3}/(1 - x)CaTiO{sub 3} perovskite composites  

SciTech Connect

CaRuO{sub 3}-CaTiO{sub 3} ceramic composites were prepared by sintering for short times for potential applications in the areas of electronic ceramics. Scanning electron microscopy and energy dispersive X-ray analysis showed two separate phases, CaRuO{sub 3} and CaTiO{sub 3} in the composite. Conductivity data, measured by the four-probe method, showed that the composites have high electrical conductivity when x {>=} 0.19 in xCaRuO{sub 3}-(1 - x)CaTiO{sub 3} composites. Furthermore, the nanoparticle of calcium ruthenate prepared by reverse micelle synthesis was used to be conductive agent for the composite. The result shows that the use of nano-sized calcium ruthenate enabled higher electrical conductivity to be maintained down to x = 0.09.

Jiao, Shuqiang, E-mail: sj332@cam.ac.uk [Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ (United Kingdom); Kumar, Krishnankutty-Nair P.; Kilby, Kamal Tripuraneni [Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ (United Kingdom); Fray, Derek J., E-mail: djf25@cam.ac.uk [Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ (United Kingdom)

2009-08-05T23:59:59.000Z

119

Charge transport and magnetization profile at the interface between the correlated metal CaRuO{sub3} and the antiferromagnetic insulator CaMnO{sub3}.;  

Science Conference Proceedings (OSTI)

A combination of spectroscopic probes was used to develop a detailed experimental description of the transport and magnetic properties of superlattices composed of the paramagnetic metal CaRuO{sub 3} and the antiferromagnetic insulator CaMnO{sub 3}. The charge-carrier density and Ru valence state in the superlattices are not significantly different from those of bulk CaRuO{sub 3}. The small charge transfer across the interface implied by these observations confirms predictions derived from density-functional calculations. However, a ferromagnetic polarization due to canted Mn spins penetrates 3-4 unit cells into CaMnO{sub 3}, far exceeding the corresponding predictions. The discrepancy may indicate the formation of magnetic polarons at the interface.

Freeland, J. W.; Chakhalian, J.; Boris, A. V.; Tonnerre, J-M.; Kavich, JJ.; Yordanov, P.; Grenier,S.; Zschack, P.; Karapetrova, E.; Popovich, P.; Lee, H. N.; Keimer, B. (X-Ray Science Division); ( PSC-USR); (Univ. of Arkansas); (Max Planck Inst. for Solid State Research); (Loughborough Univ.); (CNRS and Univ. Joseph Fourier); (Univ. of Illinois); (ORNL)

2010-01-01T23:59:59.000Z

120

On the differences in the reaction mechanism for CO and CO/H{sub 2} electrooxidation on PtRu and PtSn alloy electrodes  

DOE Green Energy (OSTI)

Electrooxidation kinetics of mixtures of carbon monoxide and hydrogen were studied on well-characterized surfaces of Pt and alloys of PtRu and PtSn in 0.5 M H{sub 2}SO{sub 4} at room temperature and 60 C. The alloy electrode surfaces were prepared in UHV by sputter/anneal cycles and their surface compositions were determined via low energy ion scattering. Subsequently, the electrodes were transferred contamination-free from UHV into a rotating disk electrode (RDE) configuration in a conventional electrochemical cell and their activity was measured both by CO stripping voltammetry and under the continuous flow of CO and CO/H{sub 2} gas mixtures in RDE-experiments. The overpotential for the continuous oxidation of pure CO on PtSn electrodes with a Sn surface composition of x{sub Sn,s} {approximately} 0.2 is significantly smaller than on PtRu alloys (x{sub Ru,s} {approximately} 0.5) and on pure Pt. The reaction order with respect to solution phase CO is negative on PtRu alloys due to the competition between OH{sub ads} nucleation and CO adsorption on Ru surface atoms. Owing to the lack of CO adsorption on OH{sub ads}-providing Sn surface atoms, the reaction order with respect to CO is positive on PtSn electrodes. Therefore, the activity enhancement of PtSn electrodes versus PtRu and Pt electrodes is most pronounced in pure CO and decreases with the CO concentration in CO/N{sub 2} and CO/H{sub 2} mixtures.

Gasteiger, H.A. [Univ. Ulm (Germany). Abteilung Oberflaechenchemie und Katalyse; Markovic, N.M.; Ross, P.N. Jr. [Lawrence Berkeley National Lab., CA (United States)

1997-04-01T23:59:59.000Z

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


121

Interactions of hydrogen with alkali promoted Ru/SiO{sub 2} catalysts: A proton NMR study  

DOE Green Energy (OSTI)

Role of H spillover to the silica support was studied using chemisorption; a strongly bound component of spilled over H was found in the silica support which interfered with accurate measurements of active metal sites via volumetric strong H chemisorption. The volumetric chemisorption technique was modified so that measurement times were reduced from 12--36 h to 1 h. The active Ru surface was characterized means of changes in proton spin counts and NMR Knight shifts vs alkali loading. Na, K blocked the active surface of Ru metal, but Cs was pushed off by H chemisorption. The alkali promoters restricted H mobility on both metal surface and at the metal support interfaces; this is consistent with effects on Fischer-Tropsch synthesis. {sup 1}H NMR was used to study the effect of the active metal and promoter on support hydroxyl groups. The OH group density in the silica support decreased with metal and/or promoter loading, but not on a one-to-one basis; the exchange efficiency of the hydroxyls decreased with atomic size of the alkali metal. An additional downfield proton resonance was detected which was assigned to the alkali hydroxide species in the support.

Ozbay, U.D.

1994-05-10T23:59:59.000Z

122

V-137: Apple Mac OS X update for Java | Department of Energy  

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

7: Apple Mac OS X update for Java V-137: Apple Mac OS X update for Java April 18, 2013 - 6:00am Addthis PROBLEM: Apple Mac OS X update for Java PLATFORM: Mac OS X 10.6, OS X Lion...

123

Modulation of the Folding Energy Landscape of Cytochrome c with Salt Shi Zhong, Denis L. Rousseau,* and Syun-Ru Yeh*  

E-Print Network (OSTI)

,* and Syun-Ru Yeh* Department of Physiology and Biophysics, Albert Einstein College of Medicine, Bronx, New chain is unfolded. The Met80 ligand can be replaced either by a solvent water molecule, leading to a water-His bound state (HW), or by His26/33, leading to a bis-His state (HH).1,2,4,7 Under acidic

Yeh, Syun-Ru

124

Giant magnetoresistive structures based on CrO{sub 2} with epitaxial RuO{sub 2} as the spacer layer  

Science Conference Proceedings (OSTI)

Epitaxial ruthenium dioxide (RuO{sub 2})/chromium dioxide(CrO{sub 2}) thin film heterostructures have been grown on (100)-TiO{sub 2} substrates by chemical vapor deposition. Both current-in-plane (CIP) and current-perpendicular-to-plane (CPP) giant magnetoresistive stacks were fabricated with either Co or another epitaxial CrO{sub 2} layer as the top electrode. The Cr{sub 2}O{sub 3} barrier, which forms naturally on CrO{sub 2} surfaces, is no longer present after the RuO{sub 2} deposition, resulting in a highly conductive interface that has a resistance at least four orders of magnitude lower. However, only very limited magnetoresistance (MR) was observed. Such low MR is due to the appearance of a chemically and magnetically disordered layer at the CrO{sub 2} and RuO{sub 2} interfaces when Cr{sub 2}O{sub 3} is transformed into rutile structures during its intermixing with RuO{sub 2}.

Miao, G.X.; Gupta, A.; Sims, H.; Butler, W.H.; Ghosh, S.; Xiao Gang [Physics Department, Brown University, Providence, Rhode Island 02912 (United States); Center for Materials for Information Technology, University of Alabama, Tuscaloosa, Alabama 35487 (United States); Department of Electrical and Computer Engineering, University of Illinois, Chicago, Illinois 60607 (United States); Physics Department, Brown University, Providence, Rhode Island 02912 (United States)

2005-05-15T23:59:59.000Z

125

Excited State Dynamics of Two New Ru(II) Cyclometallated Dyes: Relation to Cells for Solar Energy Conversion and Comparison to  

E-Print Network (OSTI)

Excited State Dynamics of Two New Ru(II) Cyclometallated Dyes: Relation to Cells for Solar Energy, are reported. Related complexes have been used as efficient dyes in dye- sensitized solar cells (DSSCs of ruthenium dyes used in DSSCs to lower energies, it is evident from this work, that for cyclometallated phpy

Turro, Claudia

126

T-658: Java for Mac OS X 10.6 Update 5 & Java for Mac OS X 10.5 Update 10 |  

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

8: Java for Mac OS X 10.6 Update 5 & Java for Mac OS X 10.5 8: Java for Mac OS X 10.6 Update 5 & Java for Mac OS X 10.5 Update 10 T-658: Java for Mac OS X 10.6 Update 5 & Java for Mac OS X 10.5 Update 10 June 30, 2011 - 3:22pm Addthis PROBLEM: Java for Mac OS X 10.6 Update 5 & Java for Mac OS X 10.5 Update 10 PLATFORM: Mac OS X v10.5.8, Mac OS X Server v10.5.8, Mac OS X v10.6.6 and later, Mac OS X Server v10.6.6 and later ABSTRACT: Multiple vulnerabilities exist in Java 1.6.0_24, the most serious of which may allow an untrusted Java applet to execute arbitrary code outside the Java sandbox. Visiting a web page containing a maliciously crafted untrusted Java applet may lead to arbitrary code execution with the privileges of the current user. These issues are addressed by updating to Java version 1.6.0_26. Further information is available via the Java

127

Determination of the spin-flip time in ferromagnetic SrRuO3 from time-resolved Kerr measurements  

SciTech Connect

We report time-resolved Kerr effect measurements of magnetization dynamics in ferromagnetic SrRuO{sub 3}. We observe that the demagnetization time slows substantially at temperatures within 15K of the Curie temperature, which is {approx} 150K. We analyze the data with a phenomenological model that relates the demagnetization time to the spin flip time. In agreement with our observations the model yields a demagnetization time that is inversely proportional to T-T{sub c}. We also make a direct comparison of the spin flip rate and the Gilbert damping coefficient showing that their ratio very close to k{sub B}T{sub c}, indicating a common origin for these phenomena.

Kantner, C.L.S.; Langner, M.C.; Siemons, W.; Blok, J.L.; Koster, G.; Rijnders, A.J.H.M.; Ramesh, R.; Orenstein, J.

2010-07-30T23:59:59.000Z

128

{sup 45}Sc Solid State NMR studies of the silicides ScTSi (T=Co, Ni, Cu, Ru, Rh, Pd, Ir, Pt)  

SciTech Connect

The silicides ScTSi (T=Fe, Co, Ni, Cu, Ru, Rh, Pd, Ir, Pt) were synthesized by arc-melting and characterized by X-ray powder diffraction. The structures of ScCoSi, ScRuSi, ScPdSi, and ScIrSi were refined from single crystal diffractometer data. These silicides crystallize with the TiNiSi type, space group Pnma. No systematic influences of the {sup 45}Sc isotropic magnetic shift and nuclear electric quadrupolar coupling parameters on various structural distortion parameters calculated from the crystal structure data can be detected. {sup 45}Sc MAS-NMR data suggest systematic trends in the local electronic structure probed by the scandium atoms: both the electric field gradients and the isotropic magnetic shifts relative to a 0.2 M aqueous Sc(NO{sub 3}){sub 3} solution decrease with increasing valence electron concentration and within each T group the isotropic magnetic shift decreases monotonically with increasing atomic number. The {sup 45}Sc nuclear electric quadrupolar coupling constants are generally well reproduced by quantum mechanical electric field gradient calculations using the WIEN2k code. Highlights: Black-Right-Pointing-Pointer Arc-melting synthesis of silicides ScTSi. Black-Right-Pointing-Pointer Single crystal X-ray data of ScCoSi, ScRuSi, ScPdSi, and ScIrSi. Black-Right-Pointing-Pointer {sup 45}Sc solid state NMR of silicides ScTSi.

Harmening, Thomas [Institut fuer Anorganische und Analytische Chemie and NRW Graduate School of Chemistry, Universitaet Muenster, Corrensstrasse 30, D-48149 Muenster (Germany); Eckert, Hellmut, E-mail: eckerth@uni-muenster.de [Institut fuer Physikalische Chemie, Universitaet Muenster, Corrensstrasse 30, D-48149 Muenster (Germany); Fehse, Constanze M. [Institut fuer Physikalische Chemie, Universitaet Muenster, Corrensstrasse 30, D-48149 Muenster (Germany); Sebastian, C. Peter, E-mail: sebastiancp@jncasr.ac.in [New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064 (India); Poettgen, Rainer, E-mail: pottgen@uni-muenster.de [Institut fuer Anorganische und Analytische Chemie and NRW Graduate School of Chemistry, Universitaet Muenster, Corrensstrasse 30, D-48149 Muenster (Germany)

2011-12-15T23:59:59.000Z

129

T-603: Mac OS X Includes Some Invalid Comodo Certificates | Department of  

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

03: Mac OS X Includes Some Invalid Comodo Certificates 03: Mac OS X Includes Some Invalid Comodo Certificates T-603: Mac OS X Includes Some Invalid Comodo Certificates April 15, 2011 - 1:46am Addthis PROBLEM: Mac OS X Includes Some Invalid Comodo Certificates PLATFORM: For Mac OS X Server v10.5.8, Mac OS X v10.5.8, Mac OS X v10.6.7 and Mac OS X Server v10.6.7 ABSTRACT: The operating system includes some invalid certificates. The vulnerability is due to the invalid certificates and not the operating system itself. Other browsers, applications, and operating systems are affected. reference LINKS: SecurityTracker Alert ID: 1025362 APPLE-SA-2011-04-14-4 Security Update 2011-002 Apple Support Downloads IMPACT ASSESSMENT: High Discussion: A partner of Comodo with Registration Authority capabilities suffered an internal security breach and the attacker caused seven certificates to be

130

T-529: Apple Mac OS PackageKit Distribution Script Remote Code...  

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

January 6, 2011 - 2:53pm Addthis PROBLEM: Apple Mac OS PackageKit Distribution Script Remote Code Execution Vulnerability PLATFORM: Apple Mac OS X Server 10.6 - 10.6.5, Apple...

131

U-121: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Conduct  

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

21: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, 21: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Conduct Cross-Site Scripting Attacks, and Obtain Potentially Sensitive Information U-121: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Conduct Cross-Site Scripting Attacks, and Obtain Potentially Sensitive Information March 9, 2012 - 7:00am Addthis PROBLEM: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Conduct Cross-Site Scripting Attacks, and Obtain Potentially Sensitive Information PLATFORM: Apple iOS Version(s): prior to 5.1 ABSTRACT: Multiple vulnerabilities were reported in Apple iOS. reference LINKS: SecurityTracker Alert ID: 1026774 Apple Security Updates About the security content of iOS 5.1 Software Update CVE-2012-0641, CVE-2012-0642, CVE-2012-0643, CVE-2011-3453, CVE-2012-0644,

132

T-529: Apple Mac OS PackageKit Distribution Script Remote Code Execution  

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

29: Apple Mac OS PackageKit Distribution Script Remote Code 29: Apple Mac OS PackageKit Distribution Script Remote Code Execution Vulnerability T-529: Apple Mac OS PackageKit Distribution Script Remote Code Execution Vulnerability January 6, 2011 - 2:53pm Addthis PROBLEM: Apple Mac OS PackageKit Distribution Script Remote Code Execution Vulnerability PLATFORM: Apple Mac OS X Server 10.6 - 10.6.5, Apple Mac OS X 10.6 - 10.6.5 Vulnerable Platforms Details ABSTRACT: A format string issue exists in PackageKit's handling of distribution scripts. A man-in-the-middle attacker may be able to cause an unexpected application termination or arbitrary code execution when Software Update checks for new updates. This issue is addressed through improved validation of distribution scripts. This issue does not affect systems prior to Mac OS

133

V-054: IBM WebSphere Application Server for z/OS Arbitrary Command  

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

4: IBM WebSphere Application Server for z/OS Arbitrary Command 4: IBM WebSphere Application Server for z/OS Arbitrary Command Execution Vulnerability V-054: IBM WebSphere Application Server for z/OS Arbitrary Command Execution Vulnerability December 25, 2012 - 12:08am Addthis PROBLEM: IBM WebSphere Application Server for z/OS Arbitrary Command Execution Vulnerability PLATFORM: IBM HTTP Server for z/OS Version 5.3 ABSTRACT: A vulnerability was reported in the IBM HTTP Server component 5.3 in IBM WebSphere Application Server (WAS) for z/OS REFERENCE LINKS: Security vulnerability Reference #:1620945 Xforce: 80684 Secunia Advisory SA51656 CVE-2012-5955 IMPACT ASSESSMENT: High DISCUSSION: A vulnerability has been reported in IBM WebSphere Application Server for z/OS, which can be exploited by malicious people to compromise a vulnerable

134

T-721:Mac OS X Directory Services Lets Local Users View User Password  

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

21:Mac OS X Directory Services Lets Local Users View User 21:Mac OS X Directory Services Lets Local Users View User Password Hashes T-721:Mac OS X Directory Services Lets Local Users View User Password Hashes September 20, 2011 - 8:45am Addthis PROBLEM: Mac OS X Directory Services Lets Local Users View User Password Hashes. PLATFORM: Mac OS X Lion (10.7) ABSTRACT: A local user can view user password hashes. reference LINKS: SecurityTracker Alert ID: 1026067 Apple Support Downloads Apple Security Updates Apple OS X Lion v10.7.1 Update IMPACT ASSESSMENT: Medium Discussion: A vulnerability was reported in Mac OS X. A local user can view user password hashes. A local user can invoke the following Directory Services command line command to view the password hash for the target user: dscl localhost -read /Search/Users/[target user] A local user can change their

135

Crystal fields, disorder, and antiferromagnetic short-range order in (Yb0.24Sn0.76)Ru  

Science Conference Proceedings (OSTI)

We report extensive measurements on a new compound (Yb{sub 0.24}Sn{sub 0.76})Ru that crystallizes in the cubic CsCl structure. Valence-band photoemission (PES) and L{sub 3} x-ray absorption show no divalent component in the 4f configuration of Yb. Inelastic neutron scattering (INS) indicates that the eight-fold degenerate J-multiplet of Yb{sup 3+} is split by the crystalline electric field (CEF) into a {Lambda}{sub 7}-doublet ground state and a {Lambda}{sub 8} quartet at an excitation energy 20 meV. The magnetic susceptibility can be fit very well by this CEF scheme under the assumption that a {Lambda}{sub 6}-excited state resides at 32 meV; however, the {Lambda}{sub 8}/{Lambda}{sub 6} transition expected at 12 meV was not observed in the INS. The resistivity follows a Bloch-Grueneisen law shunted by a parallel resistor, as is typical of systems subject to phonon scattering with no apparent magnetic scattering. All of these properties can be understood as representing simple local moment behavior of the trivalent Yb ion. At 1 K there is a peak in specific heat that is too broad to represent a magnetic-phase transition, consistent with absence of magnetic reflections in neutron diffraction. On the other hand this peak also is too narrow to represent the Kondo effect in the {Lambda}{sub 7}-doublet ground state. On the basis of the field dependence of the specific heat, we argue that antiferromagnetic (AF) short-range order (SRO) (possibly coexisting with Kondo physics) occurs at low temperatures. The long-range magnetic order is suppressed because the Yb site occupancy is below the percolation threshold for this disordered compound.

Klimczuk, T [Los Alamos National Lab and European Commission, JRC; Wang, Cuihuan [ORNL; Lawrence, J. M. [University of California, Irvine; Xu, Q. [University of Antwerp; Durakiewicz, T. [Los Alamos National Laboratory (LANL); Ronning, F [Los Alamos National Laboratory (LANL); Llobet, A [Los Alamos National Laboratory (LANL); Trouw, F. [Los Alamos National Laboratory (LANL); Kurita, N [Los Alamos National Laboratory (LANL); Tokiwa, Y [Los Alamos National Laboratory (LANL); Lee, Han-oh [Los Alamos National Laboratory (LANL); Booth, C. H. [Lawrence Berkeley National Laboratory (LBNL); Gardner, J. S. [National Institute of Standards and Technology (NIST); Bauer, E. D. [Los Alamos National Laboratory (LANL); Joyce, J. J. [Los Alamos National Laboratory (LANL); Zandbergen, H. W. [Oak Ridge National Laboratory (ORNL); Movshovich, R [Los Alamos National Laboratory (LANL); Cava, R J [Princeton University; Thompson, J. D. [Los Alamos National Laboratory (LANL)

2011-01-01T23:59:59.000Z

136

Adsorption and decomposition of Ru{sub 3}(CO){sub 9}(CH{sub 3}CN){sub 3} at platinum surfaces: An X-ray photoelectron spectroscopy and Fourier transform-infrared spectroscopy study  

Science Conference Proceedings (OSTI)

The direct methanol fuel cell (DMFC) is an attractive power source for mobile applications due to the high-energy density of methanol, the portability and ease of distribution of liquid rather than gaseous fuel, and elimination of the need for a bulky, power-consuming fuel reformer. There are several factors limiting the power output of polymer electrolyte DMFCs. One of the major factors is the slow kinetics of the methanol electrooxidation reaction on the conventional platinum catalyst material. A CH{sub 3}CN-modified triruthenium carbonyl cluster, Ru{sub 3}(CO){sub 9}(CH{sub 3}CN){sub 3}(I), has been adsorbed on platinum and platinum oxide surfaces from dichloromethane solutions. The modified surface has been characterized by X-ray photoelectron spectroscopy (XPS) and polarized grazing angle Fourier transform-infrared (FT-IR) microscopy. The proposed mechanism for the adsorption of I involves the chemisorption of the metal cluster at the platinum surface by losing the acetonitrile ligand. The original cluster, Ru{sub 3}(CO){sub 12}, could not be adsorbed under the same experimental conditions used for cluster I. The cluster-modified surface was treated with hydrogen for the reduction of the cluster to its metallic state on the Pt surface. This was done at different temperatures. The XPS results show the formation of a complex Ru-RuO{sub 2}-RuO{sub 3}/Pt surface.

Fachini, E.R.; Cabrera, C.R. [Univ. of Puerto Rico, San Juan (Puerto Rico). Dept. of Chemistry

1999-02-02T23:59:59.000Z

137

V-069: BlackBerry Tablet OS Adobe Flash Player and Samba Multiple  

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

9: BlackBerry Tablet OS Adobe Flash Player and Samba Multiple 9: BlackBerry Tablet OS Adobe Flash Player and Samba Multiple Vulnerabilities V-069: BlackBerry Tablet OS Adobe Flash Player and Samba Multiple Vulnerabilities January 15, 2013 - 4:00am Addthis PROBLEM: BlackBerry Tablet OS Adobe Flash Player and Samba Multiple Vulnerabilities PLATFORM: BlackBerry Tablet Software versions 2.1.0.1032 and prior. ABSTRACT: Multiple vulnerabilities have been reported in BlackBerry Tablet OS REFERENCE LINKS: BlackBerry Knowledge Base Article ID: KB32019 BlackBerry Knowledge Base Article ID: KB32189 Secunia Advisory SA51830 CVE-2012-1182 CVE-2012-1535 CVE-2012-2034 CVE-2012-2037 CVE-2012-4163 CVE-2012-4165 CVE-2012-4166 CVE-2012-4167 IMPACT ASSESSMENT: High DISCUSSION: Multiple vulnerabilities have been reported in BlackBerry Tablet OS, which

138

V-015: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Local Users  

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

5: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, 5: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Local Users Bypass the Screen Lock, and Applications Obtain Kernel Address Information V-015: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Local Users Bypass the Screen Lock, and Applications Obtain Kernel Address Information November 2, 2012 - 6:00am Addthis PROBLEM: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Local Users Bypass the Screen Lock, and Applications Obtain Kernel Address Information PLATFORM: Apple iOS prior to 6.0.1 ABSTRACT: Three vulnerabilities were reported in Apple iOS. REFERENCE LINKS: Apple Article: HT5567 SecurityTracker Alert ID: 1027716 Bugtraq ID: 56363 CVE-2012-3748 CVE-2012-3749 CVE-2012-3750 IMPACT ASSESSMENT: High DISCUSSION: A remote user can create specially crafted HTML that, when loaded by the

139

HS_FossilFuels_Studyguide.indd  

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

Fossil Fuels Fossil Fuels Fossil Energy Study Guide: Fossil Fuels C ontrary to what many people believe, fossil fuels are not the remains of dead dinosaurs. In fact, most of the fossil fuels found today were formed millions of years before the fi rst dinosaurs. Fossil fuels, however, were once alive. Th ey were formed from prehistoric plants and animals that lived hundreds of millions of years ago. Th ink about what the Earth must have looked like 300 million years or so ago. Th e land masses we live on today were just forming. Th ere were swamps and bogs everywhere. Th e climate was warmer. Trees and plants grew everywhere. Strange looking animals walked on the land, and just as weird looking fi sh swam in the rivers and seas. Tiny one-celled organisms called protoplankton fl

140

T-676: Apple iOS Certificate Chain Validation Flaw Lets Certain Remote  

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

6: Apple iOS Certificate Chain Validation Flaw Lets Certain 6: Apple iOS Certificate Chain Validation Flaw Lets Certain Remote Users Access or Modify SSL/TLS Sessions T-676: Apple iOS Certificate Chain Validation Flaw Lets Certain Remote Users Access or Modify SSL/TLS Sessions July 26, 2011 - 1:06am Addthis PROBLEM: A vulnerability was reported in Apple iOS. A remote user with the ability to conduct a man-in-the-middle attack can access or modify SSL/TLS sessions. PLATFORM: iOS 4.2.5 through 4.2.9 for iPhone 4 (CDMA) iOS 3.0 through 4.3.4 for iPhone 3GS and iPhone 4 (GSM) iOS 3.1 through 4.3.4 for iPod touch (3rd generation) and later iOS 3.2 through 4.3.4 for iPad ABSTRACT: Apple iOS Certificate Chain Validation Flaw Lets Certain Remote Users Access or Modify SSL/TLS Sessions. reference LINKS: SecurityTracker Alert ID: 1025837

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


141

User Interfaces in iOS and Windows Phone: a comparison.  

E-Print Network (OSTI)

??This term paper contains a comparison between iOS and Windows Phone, regarding especially the user interface. Chapter 1 deals with a brief description of the… (more)

Gandin, Silvia

2013-01-01T23:59:59.000Z

142

Inactivation of OsIRX10 leads to decreased xylan content in ...  

Inactivation of OsIRX10 leads to decreased xylan content in rice culm cell walls and improved ... We subjected destarched AIR samples to hot water ...

143

V-080: Apple iOS Multiple Vulnerabilities | Department of Energy  

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

0: Apple iOS Multiple Vulnerabilities 0: Apple iOS Multiple Vulnerabilities V-080: Apple iOS Multiple Vulnerabilities January 30, 2013 - 12:56am Addthis PROBLEM: Apple iOS Multiple Vulnerabilities PLATFORM: Apple iOS 6.x for iPhone 3GS and later Apple iOS for iPad 6.x Apple iOS for iPod touch 6.x ABSTRACT: Two security issues and multiple vulnerabilities have been reported in Apple iOS REFERENCE LINKS: Article: HT5642 APPLE-SA-2013-01-28-1 iOS 6.1 Software Update Secunia Advisory SA52002 CVE-2011-3058 CVE-2012-2619 CVE-2012-2824 CVE-2012-2857 CVE-2012-2889 CVE-2012-3606 CVE-2012-3607 CVE-2012-3621 CVE-2012-3632 CVE-2012-3687 CVE-2012-3701 CVE-2013-0948 CVE-2013-0949 CVE-2013-0950 CVE-2013-0951 CVE-2013-0952 CVE-2013-0953 CVE-2013-0954 CVE-2013-0955 CVE-2013-0956 CVE-2013-0958 CVE-2013-0959 CVE-2013-0962 CVE-2013-0963 CVE-2013-0964

144

T-676: Apple iOS Certificate Chain Validation Flaw Lets Certain Remote  

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

76: Apple iOS Certificate Chain Validation Flaw Lets Certain 76: Apple iOS Certificate Chain Validation Flaw Lets Certain Remote Users Access or Modify SSL/TLS Sessions T-676: Apple iOS Certificate Chain Validation Flaw Lets Certain Remote Users Access or Modify SSL/TLS Sessions July 26, 2011 - 1:06am Addthis PROBLEM: A vulnerability was reported in Apple iOS. A remote user with the ability to conduct a man-in-the-middle attack can access or modify SSL/TLS sessions. PLATFORM: iOS 4.2.5 through 4.2.9 for iPhone 4 (CDMA) iOS 3.0 through 4.3.4 for iPhone 3GS and iPhone 4 (GSM) iOS 3.1 through 4.3.4 for iPod touch (3rd generation) and later iOS 3.2 through 4.3.4 for iPad ABSTRACT: Apple iOS Certificate Chain Validation Flaw Lets Certain Remote Users Access or Modify SSL/TLS Sessions. reference LINKS: SecurityTracker Alert ID: 1025837

145

Direct Observation of Coexistence of Ferromagnetism and Superconductivity in RuSr2(Gd0.7Ce0.3)2Cu2O10  

E-Print Network (OSTI)

Recent reports of the detecting of ferromagnetism and superconductivity in ruthenium-cuprates have aroused great interest. Unfortunately, whether the two antagonistic phenomena coexist in the same space in the compounds remains unresolved. By employing the magneto-optical-imaging technique, ferromagnetism and superconductivity were indeed directly observed to coexist in the same space in RuSr2(Gd0.7Ce0.3)2Cu2O10 within the experimental resolution of ? 10 µm. The observation sets a length scale limit for models proposed to account for the competition between ferromagnetism and superconductivity, especially d-wave superconductivity, in this interesting class of compounds.

unknown authors

2008-01-01T23:59:59.000Z

146

T-634: Apple Mac OS X MacDefender Fake Antivirus Malicious Software |  

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

34: Apple Mac OS X MacDefender Fake Antivirus Malicious Software 34: Apple Mac OS X MacDefender Fake Antivirus Malicious Software T-634: Apple Mac OS X MacDefender Fake Antivirus Malicious Software June 1, 2011 - 3:35pm Addthis PROBLEM: Apple Mac OS X versions 10.4, 10.5, and 10.6 are the targets of a new campaign of phishing attacks that aim to infect systems with a fake antivirus application called MacDefender. PLATFORM: Mac OS X 10.4, Mac OS X 10.6, Mac OS X 10.5 ABSTRACT: Apple Mac OS X users could infect their systems after visiting a malicious web page. Reports suggest that the Apple Safari web browser could allow automatic download and execution of the JavaScript-based malware because of an incorrectly set security option in Safari. reference LINKS: Security Article: HT4650 IntelliShield ID: 23239 Apple Insider Article

147

Collaborative Sharing of Windows between MacOS X, the X Window System and Windows  

E-Print Network (OSTI)

Collaborative Sharing of Windows between MacOS X, the X Window System and Windows Daniel Stødle This paper investigates how one best can share windows between many different computers in a collaborative application. We present an architecture of a system allowing windows on MacOS X to be shared with computers

Bjørndalen, John Markus

148

U-036: Apple iOS Bugs Let Remote Users Execute Arbitrary Code | Department  

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

6: Apple iOS Bugs Let Remote Users Execute Arbitrary Code 6: Apple iOS Bugs Let Remote Users Execute Arbitrary Code U-036: Apple iOS Bugs Let Remote Users Execute Arbitrary Code November 15, 2011 - 8:00am Addthis PROBLEM: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Obtain Information and Let Local Users Bypass Authentication. PLATFORM: iOS 3.0 through 5.0 for iPhone 3GS iPhone 4 and iPhone 4S iOS 3.1 through 5.0 for iPod touch (3rd generation) and later iOS 3.2 through 5.0 for iPad, iOS 4.3 through 5.0 for iPad 2 ABSTRACT: A remote user can create content that, when loaded by the target user, will execute arbitrary code on or obtain potentially sensitive information from the target user's system. reference LINKS: Apple Security Article: HT5052 Apple Product Security SecurityTracker Alert ID: 1026311 IMPACT ASSESSMENT:

149

U-107: Cisco NX-OS IP Packet Processing Flaw Lets Remote Users Deny Service  

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

07: Cisco NX-OS IP Packet Processing Flaw Lets Remote Users Deny 07: Cisco NX-OS IP Packet Processing Flaw Lets Remote Users Deny Service U-107: Cisco NX-OS IP Packet Processing Flaw Lets Remote Users Deny Service February 21, 2012 - 6:00am Addthis PROBLEM: A vulnerability was reported in Cisco NX-OS. A remote user can cause denial of service conditions. PLATFORM: Nexus 1000v, 5000, and 7000 Series Switches ABSTRACT: A remote user can send a specially crafted IP packet to cause the target device to reload. reference LINKS: Cisco Advisory SecurityTracker Alert ID:1026692 CVE-2012-0352 IMPACT ASSESSMENT: Medium Discussion: A vulnerability was reported in Cisco NX-OS. A remote user can cause denial of service conditions. A remote user can send a specially crafted IP packet to cause the target device to reload. The vulnerability occurs when the device attepts to obtain Layer 4 (e.g.,

150

V-191: Apple Mac OS X Multiple Vulnerabilities | Department of Energy  

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

1: Apple Mac OS X Multiple Vulnerabilities 1: Apple Mac OS X Multiple Vulnerabilities V-191: Apple Mac OS X Multiple Vulnerabilities July 3, 2013 - 6:00am Addthis PROBLEM: Apple has issued a security update for Mac OS X PLATFORM: Apple Macintosh OS X ABSTRACT: The vulnerabilities are caused due to a bundled version of QuickTime REFERENCE LINKS: Secunia Advisory SA54049 APPLE-SA-2013-07-02-1 Security Update 2013-003 CVE-2013-1018 CVE-2013-1019 CVE-2013-1022 IMPACT ASSESSMENT: High DISCUSSION: A boundary error when parsing compressed data within H.264 encoded movie files can be exploited to cause a buffer overflow A boundary error when handling the Sorenson Video 3 "mdat" section within a MOV file can be exploited to cause a buffer overflow A boundary error when handling "mvhd" atoms can be exploited to cause a

151

V-191: Apple Mac OS X Multiple Vulnerabilities | Department of Energy  

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

1: Apple Mac OS X Multiple Vulnerabilities 1: Apple Mac OS X Multiple Vulnerabilities V-191: Apple Mac OS X Multiple Vulnerabilities July 3, 2013 - 6:00am Addthis PROBLEM: Apple has issued a security update for Mac OS X PLATFORM: Apple Macintosh OS X ABSTRACT: The vulnerabilities are caused due to a bundled version of QuickTime REFERENCE LINKS: Secunia Advisory SA54049 APPLE-SA-2013-07-02-1 Security Update 2013-003 CVE-2013-1018 CVE-2013-1019 CVE-2013-1022 IMPACT ASSESSMENT: High DISCUSSION: A boundary error when parsing compressed data within H.264 encoded movie files can be exploited to cause a buffer overflow A boundary error when handling the Sorenson Video 3 "mdat" section within a MOV file can be exploited to cause a buffer overflow A boundary error when handling "mvhd" atoms can be exploited to cause a

152

U-228: BlackBerry Tablet OS Flash Player Multiple Vulnerabilities |  

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

8: BlackBerry Tablet OS Flash Player Multiple Vulnerabilities 8: BlackBerry Tablet OS Flash Player Multiple Vulnerabilities U-228: BlackBerry Tablet OS Flash Player Multiple Vulnerabilities August 6, 2012 - 7:00am Addthis PROBLEM: BlackBerry Tablet OS Flash Player Multiple Vulnerabilities PLATFORM: Adobe Flash Player versions included with BlackBerry PlayBook tablet software versions 2.0.1.358 and earlier. ABSTRACT: Vulnerabilities in Adobe Flash Player version included with the BlackBerry PlayBook tablet software reference LINKS: BlackBerry Article ID: KB31675 Secunia Advisory SA50164 CVE-2012-0752 CVE-2012-0753 CVE-2012-0754 CVE-2012-0755 CVE-2012-0756 CVE-2012-0767 CVE-2012-0768 CVE-2012-0769 CVE-2012-0773 CVE-2012-0779 IMPACT ASSESSMENT: High Discussion: Multiple vulnerabilities have been reported in BlackBerry Tablet OS, which

153

U-264: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users  

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

4: Apple OS X Lets Remote Users Execute Arbitrary Code and 4: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users Gain Elevated Privileges U-264: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users Gain Elevated Privileges September 20, 2012 - 6:00am Addthis U-264: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users Gain Elevated Privileges September 20, 2012 - 6:00am PROBLEM: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users Gain Elevated Privileges PLATFORM: Apple OS X ABSTRACT: Several vulnerabilities were reported in Apple OS X. reference LINKS: Apple Security Article: HT5501 SecurityTracker Alert ID: 1027551 CVE-2012-0650 CVE-2012-3716 CVE-2012-3718 CVE-2012-3719 CVE-2012-3720 CVE-2012-3721 CVE-2012-3722 CVE-2012-3723 IMPACT ASSESSMENT: Medium Discussion: If the DirectoryService Proxy is used, a remote user can trigger a buffer

154

U-264: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users  

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

4: Apple OS X Lets Remote Users Execute Arbitrary Code and 4: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users Gain Elevated Privileges U-264: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users Gain Elevated Privileges September 20, 2012 - 6:00am Addthis U-264: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users Gain Elevated Privileges September 20, 2012 - 6:00am PROBLEM: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users Gain Elevated Privileges PLATFORM: Apple OS X ABSTRACT: Several vulnerabilities were reported in Apple OS X. reference LINKS: Apple Security Article: HT5501 SecurityTracker Alert ID: 1027551 CVE-2012-0650 CVE-2012-3716 CVE-2012-3718 CVE-2012-3719 CVE-2012-3720 CVE-2012-3721 CVE-2012-3722 CVE-2012-3723 IMPACT ASSESSMENT: Medium Discussion: If the DirectoryService Proxy is used, a remote user can trigger a buffer

155

V-165: Cisco WebEx for iOS Certificate Validation Flaw Lets Remote Users  

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

65: Cisco WebEx for iOS Certificate Validation Flaw Lets Remote 65: Cisco WebEx for iOS Certificate Validation Flaw Lets Remote Users Spoof the Server V-165: Cisco WebEx for iOS Certificate Validation Flaw Lets Remote Users Spoof the Server May 28, 2013 - 12:46am Addthis PROBLEM: Cisco WebEx for iOS Certificate Validation Flaw Lets Remote Users Spoof the Server PLATFORM: Cisco WebEx for iOS 4.1, Other versions may also be affected. ABSTRACT: A vulnerability was reported in Cisco WebEx for iOS. REFERENCE LINKS: Cisco SecurityTracker Alert ID: 1028592 Secunia Advisory SA51412 CVE-2012-6399 IMPACT ASSESSMENT: Medium DISCUSSION: A security issue in Cisco WebEx for iOS can be exploited by malicious people to conduct spoofing attacks. The security issue is caused due to the application not properly verifying the server SSL certificate. This can be exploited to e.g. spoof the server

156

Dpon ru Paean 1  

E-Print Network (OSTI)

Description (to be used in archive entry) The lyrics state, "Sheep wool is smooth in the fourth lunar month, the time when adults are happy. Female yaks are full of milk in the fifth lunar month, the time when singers are happy. Horses are in good shape...

Gcod pa don 'grub

157

Ru!fsa!!  

Office of Legacy Management (LM)

prejmt . Rufsa sgI51k ains . : r l u s e l i c c u at c r t ; JIIIIU:,ILIIII UII ENGINEERING 'IITH NUCLEAR EXPLOSIVES . . (4th Plovjshare Symposium) . .. ......

158

Re^Os evidence for replacement of ancient mantle lithosphere beneath the North China craton  

E-Print Network (OSTI)

^Os data for peridotite xenoliths carried in Paleozoic kimberlites and Tertiary alkali basalts confirm, coupled with the presence of cold, refractory mantle xenoliths carried in kimberlite pipes that erupt

Mcdonough, William F.

159

V-158: BlackBerry Tablet OS Flash Player Multiple Vulnerabilities |  

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

8: BlackBerry Tablet OS Flash Player Multiple Vulnerabilities 8: BlackBerry Tablet OS Flash Player Multiple Vulnerabilities V-158: BlackBerry Tablet OS Flash Player Multiple Vulnerabilities May 17, 2013 - 6:00am Addthis PROBLEM: Multiple vulnerabilities have been reported in BlackBerry Tablet OS PLATFORM: BlackBerry Tablet OS 2.x ABSTRACT: Multiple vulnerabilities have been reported in BlackBerry Tablet OS, which can be exploited by malicious people to bypass certain security restrictions and compromise a user's system. REFERENCE LINKS: Secunia Advisory SA53453 Blackberry Security Advisory KB34161 CVE-2012-5248 CVE-2012-5249 CVE-2012-5250 CVE-2012-5251 CVE-2012-5252 CVE-2012-5253 CVE-2012-5254 CVE-2012-5255 CVE-2012-5256 CVE-2012-5257 CVE-2012-5258 CVE-2012-5259 CVE-2012-5260 CVE-2012-5261 CVE-2012-5262 CVE-2012-5263 CVE-2012-5264 CVE-2012-5265

160

Spin-torque diode spectrum of ferromagnetically coupled (FeB/CoFe)/Ru/(CoFe/FeB) synthetic free layer  

SciTech Connect

We investigated systematically the spin torque diode spectrum of a ferromagnetically coupled (FeB/CoFe)/Ru/(CoFe/FeB) synthetic free layer in an MgO-based magnetic tunnel junction. In the spectra, we observed single peaks shifted to higher frequency with increasing the in-plane magnetic fields, as expected from the ferromagnetic resonance of the FeB/CoFe adjacent to the MgO tunnel barrier. On the other hand, under the perpendicular fields, we observed several peaks below 6 GHz and around 10 GHz, which were rather insensitive to the field. These behaviors are different from our simple calculation taking account the interlayer coupling, suggesting that the excitation of magnetizations occurs in a complicated manner for the synthetic free layers.

Bang, Do; Taniguchi, Tomohiro; Kubota, Hitoshi; Yorozu, Takehiko; Imamura, Hiroshi; Yakushiji, Kay; Fukushima, Akio; Yuasa, Shinji; Ando, Koji [National Institute of Advanced Industrial Science and Technology (AIST), Central 2, Umezono 1-1-1, Tsukuba, Ibaraki 305-8568 (Japan)

2012-04-01T23:59:59.000Z

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


161

V-115: Apple iOS Bugs Let Local Users Gain Elevated Privileges | Department  

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

5: Apple iOS Bugs Let Local Users Gain Elevated Privileges 5: Apple iOS Bugs Let Local Users Gain Elevated Privileges V-115: Apple iOS Bugs Let Local Users Gain Elevated Privileges March 20, 2013 - 12:08am Addthis PROBLEM: Apple iOS Bugs Let Local Users Gain Elevated Privileges PLATFORM: Version(s): prior to 6.1.3 ABSTRACT: Several vulnerabilities were reported in Apple iOS REFERENCE LINKS: Apple security Article: HT1222 SecurityTracker Alert ID: 1028314 CVE-2013-0977 CVE-2013-0978 CVE-2013-0979 CVE-2013-0981 IMPACT ASSESSMENT: High DISCUSSION: A local user can exploit a flaw in the handling of Mach-O executable files with overlapping segments to execute unsigned code on the target system [CVE-2013-0977]. A local user can exploit a flaw in the ARM prefetch abort handling to determine the address of structures in the kernel [CVE-2013-0978].

162

U-165: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Spoof  

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

5: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and 5: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Spoof Address Bar URLs U-165: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Spoof Address Bar URLs May 9, 2012 - 7:00am Addthis PROBLEM: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Spoof Address Bar URLs PLATFORM: prior to 5.1.1; iPhone 3GS, iPhone 4, iPhone 4S, iPod touch (3rd generation) and later, iPad, iPad 2 ABSTRACT: Two vulnerabilities were reported in Apple iOS. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can spoof the address bar URL. reference LINKS: SecurityTracker Alert ID: 1027028 CVE-2012-0672 CVE-2012-0674 IMPACT ASSESSMENT: Medium Discussion: A remote user can create a specially crafted file that, when loaded by the

163

U-165: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Spoof  

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

5: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and 5: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Spoof Address Bar URLs U-165: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Spoof Address Bar URLs May 9, 2012 - 7:00am Addthis PROBLEM: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Spoof Address Bar URLs PLATFORM: prior to 5.1.1; iPhone 3GS, iPhone 4, iPhone 4S, iPod touch (3rd generation) and later, iPad, iPad 2 ABSTRACT: Two vulnerabilities were reported in Apple iOS. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can spoof the address bar URL. reference LINKS: SecurityTracker Alert ID: 1027028 CVE-2012-0672 CVE-2012-0674 IMPACT ASSESSMENT: Medium Discussion: A remote user can create a specially crafted file that, when loaded by the

164

T-585: Mac OS X v10.6.7 Security Update 2011-001 | Department of Energy  

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

85: Mac OS X v10.6.7 Security Update 2011-001 85: Mac OS X v10.6.7 Security Update 2011-001 T-585: Mac OS X v10.6.7 Security Update 2011-001 March 22, 2011 - 2:02pm Addthis PROBLEM: Mac OS X v10.6.7 Security Update 2011-001 PLATFORM: Mac OS X 10.3, Mac OS X 10.4, Mac OS X 10.6, Mac OS X 10.5.(Affected Software and Download Locations) ABSTRACT: Mac OS Update: Mac OS 10.6.7 fixes multiple vulnerabilities in the following release. This update can be installed on non-startup volumes, but you should only do this if the current startup volume has already been updated to Mac OS X Server v10.6.7. The simplest way to avoid issues from an improper installation is to start up from the volume that you wish to update. reference LINKS: APPLE-SA-2011-03-21-1 Mac OS X v10.6.7 About the Mac OS X Server v10.6.7 Update Apple security updates

165

OS X Exploits and Defense: Own it...Just Like Windows or Linux!  

Science Conference Proceedings (OSTI)

Threats to Macintosh's OS X operating system are increasing in sophistication and number. Whether it is the exploitation of an increasing number of holes, use of rootkits for post compromise concealment or distributed denial of service, knowing how the ... Keywords: Security

Paul Baccas; Kevin Finisterre; Larry H.; David Harley; Gary Porteus; Chris Hurley; Johnny Long

2008-04-01T23:59:59.000Z

166

Hobbes: composition and virtualization as the foundations of an extreme-scale OS/R  

Science Conference Proceedings (OSTI)

This paper describes our vision for Hobbes, an operating system and runtime (OS/R) framework for extreme-scale systems. The Hobbes design explicitly supports application composition, which is emerging as a key approach for applications to address scalability ... Keywords: application composition, operating system, supercomputing, virtualization

Ron Brightwell, Ron Oldfield, Arthur B. Maccabe, David E. Bernholdt

2013-06-01T23:59:59.000Z

167

An agent-based workflow system for enterprise based on FIPA-OS framework  

Science Conference Proceedings (OSTI)

The paper describes what we have learned from implementing a multi-agent architecture used to support enterprise notions and principles for intelligent systems design. In the last couple of years, agent-based management systems have been widely used ... Keywords: FIPA-OS, Multi-agent system, Workflow management

Yao Jung Yang; Tien-Wen Sung; Chuni Wu; Hsiang-Yang Chen

2010-01-01T23:59:59.000Z

168

Microstructure and ordering parameter studies in multilayer [FePt(x)/Os]{sub n} films  

SciTech Connect

The microstructure, ordering parameter, and magnetic properties of multilayer [FePt(x)/Os]{sub n} films on glass substrate by dc-magnetron sputtering (with x being thickness in nm; Os with a fixed thickness 5 nm; n being the number of layers) have been studied as a function of the annealing temperatures between 300 and 900 deg. C. The grain size of multilayer films can be controlled by annealing temperature and thickness of the FePt layer with Os space layer. The coercivity as a function of the annealing temperature for samples with n = 1 and pure FePt behaves roughly saturated after annealing above 700 deg. C. However, for samples with n > 4 the value of H{sub c} seems still increasing with increasing annealing temperature between 600 and 900 deg. C, and the ordering parameter decreases with increasing the number of Os layers. Our experimental results are reasonably well to describe the effect of strain-assisted transformation.

Chiang, D. P. [Division of Natural Science, Ming Hsin University of Sci. and Techn., Hsinchu 304, Taiwan (China); Department of Materials Engineering, Tatung University, Taipei 104, Taiwan (China); Chen, S. Y.; Chen, Y. Y. [Institute of Physics, Academia Sinica, Taipei 115, Taiwan (China); Yao, Y. D. [Institute of Applied Science and Engineering, Fu Jen University, Taipei 242, Taiwan (China); Ouyang, H. [Department of Materials Sci. and Engn., Tsing Hua University, Hsinchu 300, Taiwan (China); Yu, C. C. [Department of Applied Physics, National University of Kaohsiung, Kaohsiung 811, Taiwan (China); Lin, H. M. [Department of Materials Engineering, Tatung University, Taipei 104, Taiwan (China)

2011-04-01T23:59:59.000Z

169

ThermOS: system support for dynamic thermal management of chip multi-processors  

Science Conference Proceedings (OSTI)

Constraining the temperature of computing systems has become a dominant aspect in the design of integrated circuits. The supply voltage decrease has lost its pace even though the feature size is shrinking constantly. This results in an increased number ... Keywords: CMP, DTM, OS, chip multi-processor, chip-multiprocessor, dynamic thermal management, multi-core, multicore, operating system

Filippo Sironi, Martina Maggio, Riccardo Cattaneo, Giovanni Francesco Del Nero, Donatella Sciuto, Marco Domenico Santambrogio

2013-10-01T23:59:59.000Z

170

Android and iOS users' differences concerning security and privacy  

Science Conference Proceedings (OSTI)

We compare Android and iOS users according to their demographic differences, security and privacy awareness, and reported behavior when installing apps. We present an exploratory study based on an online survey with more than 700 German students and ... Keywords: android, ios, iphone, personal data, privacy awareness, security awareness, smartphone

Zinaida Benenson; Freya Gassmann; Lena Reinfelder

2013-04-01T23:59:59.000Z

171

Structurally-driven metal-insulator transition in Ca{sub 2}Ru{sub 1-x}Cr{sub x}O{sub 4} (0{<=}x<0.14): A single crystal X-ray diffraction study  

Science Conference Proceedings (OSTI)

Correlation between structure and transport properties are investigated in high-quality single-crystals of Ca{sub 2}Ru{sub 1-x}Cr{sub x}O{sub 4} with 013.5% and the system behaves as an insulator. Such a large, sharp metal-insulator transition and tuneable transition temperature may have potential applications in electronic devices. -- Graphical abstract: The metal-insulator transition temperature (T{sub MI}) was drastically reduced by Cr doping, and is closely related to the distortion of structure. Display Omitted Research highlights: {yields} The metal-insulator transition temperature (T{sub MI}) was drastically reduced by doping Cr into Ca{sub 2}RuO{sub 4} single crystal. {yields} Detailed single crystal structural analysis provided important insight into this structurally-driven metal-insulator transition. {yields} Negative Volume Thermal Expansion (NVTE) was observed with increasing temperature.

Qi, T.F., E-mail: tqi2@uky.ed [Center for Advanced Materials, University of Kentucky, Lexington, KY 40506 (United States); Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 (United States); Ge, M. [Center for Advanced Materials, University of Kentucky, Lexington, KY 40506 (United States); High Magnetic Field Laboratory, University of Science and Technology of China, Hefei, Anhui 230026 (China); Korneta, O.B. [Center for Advanced Materials, University of Kentucky, Lexington, KY 40506 (United States); Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 (United States); Parkin, S. [Center for Advanced Materials, University of Kentucky, Lexington, KY 40506 (United States); Department of Chemistry, University of Kentucky, Lexington, KY 40506 (United States); De Long, L.E.; Cao, G. [Center for Advanced Materials, University of Kentucky, Lexington, KY 40506 (United States); Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 (United States)

2011-04-15T23:59:59.000Z

172

Fischer-Tropsch Synthesis: Influence of CO Conversion on Selectivities H2/CO Usage Ratios and Catalyst Stability for a 0.27 percent Ru 25 percent Co/Al2O3 using a Slurry Phase Reactor  

SciTech Connect

The effect of CO conversion on hydrocarbon selectivities (i.e., CH{sub 4}, C{sub 5+}, olefin and paraffin), H{sub 2}/CO usage ratios, CO{sub 2} selectivity, and catalyst stability over a wide range of CO conversion (12-94%) on 0.27%Ru-25%Co/Al{sub 2}O{sub 3} catalyst was studied under the conditions of 220 C, 1.5 MPa, H{sub 2}/CO feed ratio of 2.1 and gas space velocities of 0.3-15 NL/g-cat/h in a 1-L continuously stirred tank reactor (CSTR). Catalyst samples were withdrawn from the CSTR at different CO conversion levels, and Co phases (Co, CoO) in the slurry samples were characterized by XANES, and in the case of the fresh catalysts, EXAFS as well. Ru was responsible for increasing the extent of Co reduction, thus boosting the active site density. At 1%Ru loading, EXAFS indicates that coordination of Ru at the atomic level was virtually solely with Co. It was found that the selectivities to CH{sub 4}, C{sub 5+}, and CO{sub 2} on the Co catalyst are functions of CO conversion. At high CO conversions, i.e. above 80%, CH{sub 4} selectivity experienced a change in the trend, and began to increase, and CO{sub 2} selectivity experienced a rapid increase. H{sub 2}/CO usage ratio and olefin content were found to decrease with increasing CO conversion in the range of 12-94%. The observed results are consistent with water reoxidation of Co during FTS at high conversion. XANES spectroscopy of used catalyst samples displayed spectra consistent with the presence of more CoO at higher CO conversion levels.

W Ma; G Jacobs; Y Ji; T Bhatelia; D Bukur; S Khalid; B Davis

2011-12-31T23:59:59.000Z

173

T-621: Citrix XenServer Lets Local Administrative Users on the Guest OS  

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

21: Citrix XenServer Lets Local Administrative Users on the 21: Citrix XenServer Lets Local Administrative Users on the Guest OS Deny Service T-621: Citrix XenServer Lets Local Administrative Users on the Guest OS Deny Service May 12, 2011 - 3:00pm Addthis PROBLEM: A vulnerability was reported in Citrix XenServer. A local administrative user on the guest operating system can cause denial of service conditions. PLATFORM: Citrix XenServer 5.6 Feature Pack 1 and prior ABSTRACT: A local administrative user on a guest operating system can interrupt the normal operation of the target hypervisor. reference LINKS: Document ID: CTX129208 SecurityTracker Alert ID: 1025524 Document ID: CTX129103 Document ID: CTX129102 Document ID: CTX128844 Document ID: CTX129101 Document ID: CTX129100 Citrix Support IMPACT ASSESSMENT Medium Discussion:

174

P e d r o R os a s DYNAMIC INFLUENCES OF WIND  

E-Print Network (OSTI)

P e d r o R os a s DYNAMIC INFLUENCES OF WIND POWER ON THE POWER SYSTEM P h D t h e s is S e c t i-91184-16-9 #12;DYNAMIC INFLUENCES OF WIND POWER ON THE POWER SYSTEM By Pedro Rosas Thesis submitted to �rsted Institute, Risø National Laboratory & Brazilian Wind Energy Centre Denmark, March 2003 iii #12;iv #12

175

PNNL OS3700 Tritium Monitoring System Software and Hardware Operations Manual, Revision 0  

SciTech Connect

The PNNL OS3700 Tritium Monitoring System Software and Hardware Operations Manual describes herein how to install and operate the software and hardware on a personal computer in conjunction with the Berthold LB110 flow-through proportional counter detector system. Included are operational details for the software functions, how to read and use the drop-down menus, how to understand readings and calculations, and how to access the database tables.

Barnett, J M.; Duchsherer, Cheryl J.; Sisk, Daniel R.; Carrell, Dorothy M.; Douglas, David D.; Carter, Gregory L.

2005-11-09T23:59:59.000Z

176

PNNL OS3300 Alpha/Beta Monitoring System Software and Hardware Operations Manual, Revision 0  

SciTech Connect

This Pacific Northwest National Laboratory (PNNL) OS3300 Alpha/Beta Monitoring System Software and Hardware Operations Manual describes how to install and operate the software and hardware on a personal computer in conjunction with the EG&G Berthold LB150D continuous air monitor. Included are operational details for the software functions, how to read and use the drop-down menus, how to understand readings and calculations, and how to access the database tables.

Barnett, J. M.; Duchsherer, Cheryl J.; Sisk, Daniel R.; Carter, Gregory L.; Douglas, David D.; Carrell, Dorothy M.

2006-01-25T23:59:59.000Z

177

Crystal fields, disorder, and antiferromagnetic short-range order in (Yb{sub 0.24}Sn{sub 0.76})Ru  

SciTech Connect

We report extensive measurements on a new compound (Yb{sub 0.24}Sn{sub 0.76})Ru that crystallizes in the cubic CsCl structure. Valence band photoemission and L{sub 3} x-ray absorption show no divalent component in the 4f configuration of Yb. Inelastic neutron scattering (INS) indicates that the eight-fold degenerate J-multiplet of Yb{sup 3+} is split by the crystalline electric field (CEF) into a ?{sub 7} doublet ground state and a ?{sub 8} quartet at an excitation energy 20 meV. The magnetic susceptibility can be fit very well by this CEF scheme under the assumption that a ?{sub 6} excited state resides at 32 meV; however, the ?{sub 8}/?{sub 6} transition expected at 12 meV was not observed in the INS. The resistivity follows a Bloch-Grüneisen law shunted by a parallel resistor, as is typical of systems subject to phonon scattering with no apparent magnetic scattering. All of these properties can be understood as representing simple local moment behavior of the trivalent Yb ion. At 1 K, there is a peak in specific heat that is too broad to represent a magnetic phase transition, consistent with absence of magnetic reflections in neutron diffraction. On the other hand, this peak also is too narrow to represent the Kondo effect in the ?{sub 7} ground state doublet. On the basis of the field-dependence of the specific heat, we argue that antiferromagnetic shortrange order (possibly co-existing with Kondo physics) occurs at low temperatures. The long-range magnetic order is suppressed because the Yb site occupancy is below the percolation threshold for this disordered compound.

Klimczuk, T.; Wang, C. H.; Lawrence, J. M.; Xu, Q.; Durakiewicz, T.; Ronning, F.; Llobet, A.; Trouw, F.; Kurita, N.; Tokiwa, Y.; Lee, Han-oh; Booth, C. H.; Gardner, J. S.; Bauer, E. D.; Joyce, J. J.; Zandbergen, H. W.; Movshovich, R.; Cava, R. J.; Thompson, J. D.

2011-07-18T23:59:59.000Z

178

Kinetics and mechanisms of the reactions of alkyl radicals with oxygen and with complexes of Co(III), Ru(III), and Ni(III)  

Science Conference Proceedings (OSTI)

The kinetics of the reactions of C{sub 2}H{sub 5} radical with Co(NH{sub 3}){sub 5}X{sup 2+}, Ru(NH{sub 3}){sub 5}X{sup 2+}, and Co(dmgH){sub 2} (X) (Y) (X = Br, Cl, N{sub 3}, SCN; Y = H{sub 2}O, CH{sub 3}CN) complexes were studied using laser flash photolysis of ethylcobalt complexes. The kinetics were obtained by the kinetic probe method. Some relative rate constants were also determined by a competition method based on ethyl halide product ratios. The kinetics of colligation reactions of a series of alkyl radicals with {beta}-Ni(cyclam){sup 2+} were studied using flaser flash photolysis of alkylcobalt complexes. Again, the kinetics were obtained by employing the kinetic probe competition method. The kinetics of the unimolecular homolysis of a series of RNi(cyclam)H{sub 2}O{sup 2+} were studied. Activation parameters were obtained for the unimolecular homolysis of C{sub 2}H{sub 5}Ni(cyclam)H{sub 2}O{sup 2+}. Kinetic and thermodynamic data obtained from these reactions were compared with those for the {sigma}-bonded organometallic complexes. The kinetics of the unimolecular homolysis of a series of RNi(cyclam)H{sub 2}O{sup 2+} complexes were studied by monitoring the formation of the oxygen insertion product RO{sub 2}Ni(cyclam)H{sub 2}O{sup 2+}. The higher rate constants for the reactions of alkyl radicals with oxygen in solution, as compared with those measured in the gas phase, were discussed. 30 refs.

Kelley, D.

1990-10-08T23:59:59.000Z

179

T-632: Google Chrome OS before R12 0.12.433.38 Beta Update | Department of  

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

32: Google Chrome OS before R12 0.12.433.38 Beta Update 32: Google Chrome OS before R12 0.12.433.38 Beta Update T-632: Google Chrome OS before R12 0.12.433.38 Beta Update May 31, 2011 - 2:00pm Addthis PROBLEM: Unspecified vulnerability in the dbugs package in Google Chrome OS before R12 0.12.433.38 Beta has unknown impact and attack vectors. The Chrome OS Beta channel has announced an updated to R12 release 0.12.433.38 features of Chrome 12 Beta include, new trackpad, new flash player and several stability and functional improvements over the previous releases. PLATFORM: Products Affected By CVE-2011-2171: Google Chrome OS (Previous Releases) ABSTRACT: CVE-2011-2171 addresses unspecified vulnerabilities in the dbugs package of Google Chrome OS. Prior versions of Google Chrome can be fixed by updating to the current release. Information and content related to this CVE was

180

U-232: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the  

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

32: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny 32: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS U-232: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS August 10, 2012 - 7:00am Addthis PROBLEM: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS PLATFORM: This vulnerability effects only Xen 4.0 and 4.1. Xen 3.4 and earlier and xen-unstable are not vulnerable. ABSTRACT: A vulnerability was reported in Xen. A local user on a guest operating system can cause denial of service conditions on the host. reference LINKS: Xen Security Announcements SecurityTracker Alert ID: 1027365 seclists.org CVE-2012-3433 IMPACT ASSESSMENT: Medium Discussion: An HVM guest is able to manipulate its physical address space such that tearing down the guest takes an extended period amount of time searching

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


181

U-232: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the  

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

32: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny 32: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS U-232: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS August 10, 2012 - 7:00am Addthis PROBLEM: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS PLATFORM: This vulnerability effects only Xen 4.0 and 4.1. Xen 3.4 and earlier and xen-unstable are not vulnerable. ABSTRACT: A vulnerability was reported in Xen. A local user on a guest operating system can cause denial of service conditions on the host. reference LINKS: Xen Security Announcements SecurityTracker Alert ID: 1027365 seclists.org CVE-2012-3433 IMPACT ASSESSMENT: Medium Discussion: An HVM guest is able to manipulate its physical address space such that tearing down the guest takes an extended period amount of time searching

182

Spectroscopic Elucidation of First Steps of Supported Bimetallic Cluster Formation  

DOE Green Energy (OSTI)

Initial steps of bimetallic Ru-Os cluster formation on MgO in the presence of H{sub 2} are analyzed by EXAFS and IR spectroscopy. Ru-Os bond formation takes place after decarbonylation of Ru{sub 3} clusters and subsequently, at higher temperatures, of Os{sub 3} clusters to generate coordinative unsaturation.

Kulkarni, A.; Gates, B.C.; (UCD)

2009-12-23T23:59:59.000Z

183

(Mo,Cr) in HASTELLOY C-22HS Alloy, a  

Science Conference Proceedings (OSTI)

debate (with question marks in the phase diagrams) such as ?CrMo4Ni5, ? ... diagram at 500, 620 and 700şC show the existence of P phase and. OP6 phase[5

184

Initial Meeting of Representatives from LANL, LASO, and HS-45...  

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

interface were also discussed. HSS Participants References 1. James Lockridge PE, CIH, CSP Inspection of Environment, Safety and Health Programs at the Los Alamos National...

185

State Laboratary Contacts OS  

Science Conference Proceedings (OSTI)

... South Dakota. Mailing Address South Dakota Div. of Commercial Inspection & Reg 118 W. Capitol Pierre, SD 57501. Shipping Address Div. ...

2013-06-17T23:59:59.000Z

186

ZeptoOS // Publications  

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

Publications K. Yoshii, H. Naik, C. Yu, and P. Beckman, Extending and Benchmarking the Big Memory Implementation on Blue GeneP Linux, In "Proceedings of the 1st Int. Workshop on...

187

ZeptoOS // Projects  

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

for, e.g., real-time data streaming. The Selfish Benchmark Suite Massively parallel computers use compute node operating systems that are either special purpose light-weight...

188

ZeptoOS // Team  

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

Team Core Team Pete Beckman Pete Beckman Kamil Harish Kamil Iskra Kazutomo Yoshii Harish Naik Collaborators Rusty Lusk Susan Coghlan Rusty Lusk Susan Coghlan Aroon Nataraj Al...

189

New extended atomic data in cool star model atmospheres - Using Kurucz's new iron data in MAFAGS-OS models  

E-Print Network (OSTI)

Context. Cool star model atmospheres are a common tool for the investigation of stellar masses, ages and elemental abundance composition. Theoretical atmospheric models strongly depend on the atomic data used when calculating them. Aims. We present the changes in flux and temperature stratification when changing from iron data computed by R.L. Kurucz in the mid 90s to the Kurucz 2009 iron computations. Methods. MAFAGS-OS opacity sampling atmospheres were recomputed with Kurucz 2009 iron atomic data as implemented in the VALD database by Ryabchikova. Temperature stratification and emergent flux distribution of the new version, called MAFAGS-OS9, is compared to the former version and to solar flux measurements. Results. Using the Kurucz line lists converted into the VALD format and new bound-free opacities for Mg i and Al i leads to changes in the solar temperature stratification by not more than 28 K. At the same time, the calculated solar flux distribution shows significantly better agreement between observat...

Grupp, F; Tan, K

2009-01-01T23:59:59.000Z

190

VISĂES DO ORIENTE EM EĂA DE QUEIRĂS: uma anĂlise comparatista entre os âRelatos de viagemâ e A relĂquia.  

E-Print Network (OSTI)

??Esta dissertaĂĂo tem como objetivo estudar, em perspectiva comparatista, as obras de EĂa de QueirĂs os âRelatos de viagemâ â O Egito, A Palestina e… (more)

Rosana Carvalho da Silva Ghignath

2008-01-01T23:59:59.000Z

191

Thermoelastic properties of ReB[subscript 2] at high pressures and temperatures and comparison with Pt, Os, and Re  

Science Conference Proceedings (OSTI)

We have measured the phase stability and thermoelastic equation of state of ultrahard rhenium diboride at pressures up to 30 GPa and temperatures up to 2500 K using a laser heated diamond anvil cell in conjunction with synchrotron X-ray diffraction. ReB{sub 2} is shown to be stable throughout this pressure and temperature region. The ratio of the c-axis to the a-axis provides a monitor of the annealing of plastic stresses during compression. We show that ReB{sub 2} has a small thermal anisotropy but a large mechanical anisotropy. Combining this new data set with previously existing results from a large volume press yields a thermoelastic equation of state with a Grueneisen parameter of 2.4 (0.08) and a q of 2.7. A comparison of ReB{sub 2} with other high electron density incompressible metals - Os, Re, and Pt - shows that ReB{sub 2} has the lowest thermal pressure and the highest bulk modulus.

Kavner, Abby; Armentrout, Matthew M.; Rainey, Emma S.G.; Xie, Miao; Weaver, Beth E.; Tolbert, Sarah H.; Kaner, Richard B. (UCLA)

2012-01-20T23:59:59.000Z

192

RU-98-30 Lattice Chirality ?  

E-Print Network (OSTI)

The external fermion propagator and the internal fermion propagator in the overlap are given by different matrices. A generic problem (formulated by Pelissetto) faced by all chiral, non-local, propagators of Rebbi type is avoided in this manner. Nussinov-Weingarten-Witten mass inequalities are exactly preserved. It is sketched how to obtain simple lattice chiral Yukawa models and simple expressions for covariant currents. Going beyond my oral presentation, I have added to the write-up several comments on Niedermayer’s talk. His transparencies are available on the internet. Chiral symmetry was built into the overlap from day one. Each Weyl fermion is represented by an infinite tower and coherent unitary rotations of left-towers into linear combinations of left towers (the same holds for right towers) are exact global symmetries in vector-like gauge theories. These are symmetries of the fermion quantum system underlying the overlap and are realized canonically. There are also global U(1) symmetries

Herbert Neuberger A

1998-01-01T23:59:59.000Z

193

Dihydroptychantol A, a macrocyclic bisbibenzyl derivative, induces autophagy and following apoptosis associated with p53 pathway in human osteosarcoma U2OS cells  

SciTech Connect

Dihydroptychantol A (DHA), a novel macrocyclic bisbibenzyl compound extracted from liverwort Asterella angusta, has antifungal and multi-drug resistance reversal properties. Here, the chemically synthesized DHA was employed to test its anti-cancer activities in human osteosarcoma U2OS cells. Our results demonstrated that DHA induced autophagy followed by apoptotic cell death accompanied with G{sub 2}/M-phase cell cycle arrest in U2OS cells. DHA-induced autophagy was morphologically characterized by the formation of double membrane-bound autophagic vacuoles recognizable at the ultrastructural level. DHA also increased the levels of LC3-II, a marker of autophagy. Surprisingly, DHA-mediated apoptotic cell death was potentiated by the autophagy inhibitor 3-methyladenine, suggesting that autophagy may play a protective role that impedes the eventual cell death. Furthermore, p53 was shown to be involved in DHA-meditated autophagy and apoptosis. In this connection, DHA increased nuclear expression of p53, induced p53 phosphorylation, and upregulated p53 target gene p21{sup Waf1/Cip1}. In contrast, cytoplasmic p53 was reduced by DHA, which contributed to the stimulation of autophagy. In relation to the cell cycle, DHA decreased the expression of cyclin B{sub 1}, a cyclin required for progression through the G{sub 2}/M phase. Taken together, DHA induces G{sub 2}/M-phase cell cycle arrest and apoptosis in U2OS cells. DHA-induced apoptosis was preceded by the induction of protective autophagy. DHA-mediated autophagy and apoptosis are associated with the cytoplasmic and nuclear functions of p53.

Li Xia [School of Pharmaceutical Sciences, Shandong University, Jinan 250012 (China); School of Ocean, Shandong University, Weihai 264209 (China); Wu, William K.K. [Institute of Digestive Diseases, LKS Institute of Health Sciences and Department of Medicine and Therapeutics, Chinese University of Hong Kong (Hong Kong); Sun Bin [School of Pharmaceutical Sciences, Shandong University, Jinan 250012 (China); Cui Min; Liu Shanshan [School of Ocean, Shandong University, Weihai 264209 (China); Gao Jian [School of Pharmaceutical Sciences, Shandong University, Jinan 250012 (China); Lou Hongxiang, E-mail: louhongxiang@sdu.edu.cn [School of Pharmaceutical Sciences, Shandong University, Jinan 250012 (China)

2011-03-01T23:59:59.000Z

194

Microsoft Word - 2014 WVSB - WV HS letter (generic for PDF).docx  

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

610 Collins Ferry Road, P.O. Box 880, Morgantown, WV 26507-0880 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940 610 Collins Ferry Road, P.O. Box 880, Morgantown, WV 26507-0880 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940 REPLY TO: Morgantown Office ď‚· steven.woodruff@netl.doe.gov ď‚· Voice (304) 285-4175 ď‚· Fax (304) 285-0903 ď‚· www.netl.doe.gov September 23, 2013 Dear Science Chair or Principal: On behalf of the Secretary of Energy, I am pleased to announce the opening of the 2014 National Science Bowl, a tournament-style academic competition challenging students in the fields of science and mathematics. In support of the National Science Bowl, the U.S. Dept of Energy's National Energy Technology Laboratory is once again proud to host the West Virginia Regional Science Bowl. The WVSB is one of many regional competitions held for high school teams across

195

Microsoft Word - 2014 WVSB - WV HS letter (generic for PDF).docx  

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

of the Secretary of Energy, I am pleased to announce the opening of the 2014 National Science Bowl, a tournament-style academic competition challenging students in the fields...

196

A globally and R-linearly convergent hybrid HS and PRP method ...  

E-Print Network (OSTI)

Oct 28, 2011 ... used and converges globally and R-linearly for nonconvex functions with an ... where f : Rn ? R is continuously differentiable and its gradient is ...

197

LasIRTM -R – The New Generation RoHS-Compliant Gas Analyzers ...  

Science Conference Proceedings (OSTI)

The utilization of fast scan measurement techniques not only provides enhanced ... Window of Aluminium Smelter Pots with Shell Heat Exchanger Technology.

198

The Periodic Table of Elements C  

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

Atomic Number Chemical Symbol Atomic Weight Chemical Name = Solid at room temperature = Liquid at room temperature = Gas at room temperature = Radioactive = Artificially Made KEY METALS NON-METALS 12.011 http://education.jlab.org/ Last revised on April 3, 2013 [294] H Li Na K Be Mg Ca Sc Ti Rb Cs Fr Sr Y Ba Ra Zr Hf Rf V Nb Ta Db Cr Mo W Sg Mn Tc Re Bh Fe Ru Os Hs Co Rh Ir Mt Ni Pd Pt Ds Cu Ag Au Rg Zn Cd Hg Cn Ga In Tl Uut Ge Sn Pb Fl As Sb Bi Uup Se Te Po Lv Br I At Uus Kr Xe Rn Uuo La Ac Ce Th Pr Pa Nd U Pm Np Sm Pu Eu Am Gd Cm Tb Bk Dy Cf Ho Es Er Fm Tm Md Yb Yb No Lu Lr B Al C Si N P O S F Cl Ne He Ar HYDROGEN LITHIUM SODIUM POTASSIUM BERYLLIUM MAGNESIUM CALCIUM SCANDIUM TITANIUM RUBIDIUM CESIUM FRANCIUM STRONTIUM YTTRIUM BARIUM RADIUM ZIRCONIUM HAFNIUM RUTHERFORDIUM VANADIUM NIOBIUM TANTALUM DUBNIUM CHROMIUM MOLYBDENUM TUNGSTEN SEABORGIUM MANGANESE TECHNETIUM RHENIUM BOHRIUM IRON RUTHENIUM OSMIUM HASSIUM

199

The Periodic Table of Elements C  

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

.011 .011 Atomic Number Chemical Symbol Atomic Weight Chemical Name = Solid at room temperature = Liquid at room temperature = Gas at room temperature = Radioactive = Artificially Made KEY METALS NON-METALS http://education.jlab.org/ Last revised on April 3, 2013 [294] H Li Na K Be Mg Ca Sc Ti Rb Cs Fr Sr Y Ba Ra Zr Hf Rf V Nb Ta Db Cr Mo W Sg Mn Tc Re Bh Fe Ru Os Hs Co Rh Ir Mt Ni Pd Pt Ds Cu Ag Au Rg Zn Cd Hg Cn Ga In Tl Uut Ge Sn Pb Fl As Sb Bi Uup Se Te Po Lv Br I At Uus Kr Xe Rn Uuo La Ac Ce Th Pr Pa Nd U Pm Np Sm Pu Eu Am Gd Cm Tb Bk Dy Cf Ho Es Er Fm Tm Md Yb Yb No Lu Lr B Al C Si N P O S F Cl Ne He Ar HYDROGEN LITHIUM SODIUM POTASSIUM BERYLLIUM MAGNESIUM CALCIUM SCANDIUM TITANIUM RUBIDIUM CESIUM FRANCIUM STRONTIUM YTTRIUM BARIUM RADIUM ZIRCONIUM HAFNIUM RUTHERFORDIUM VANADIUM NIOBIUM TANTALUM DUBNIUM CHROMIUM MOLYBDENUM TUNGSTEN SEABORGIUM MANGANESE TECHNETIUM RHENIUM BOHRIUM IRON RUTHENIUM OSMIUM HASSIUM COBALT

200

AtomicNuclear Properties  

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

HTML_PAGES HTML_PAGES This AtomicNuclearProperties page is under intermittent development. Suggestions and comments are welcome. Please report errors. Chemical elements: For entries in red, a pull-down menu permits selection of the physical state. Cryogenic liquid densties are at the boiling point at 1 atm. 0n 1Ps 1H 2He 3Li 4Be 5B 6C 7N 8O 9F 10Ne 11Na 12Mg 13Al 14Si 15P 16S 17Cl 18Ar 19K 20Ca 21Sc 22Ti 23V 24Cr 25Mn 26Fe 27Co 28Ni 29Cu 30Zn 31Ga 32Ge 33As 34Se 35Br 36Kr 37Rb 38Sr 39Y 40Zr 41Nb 42Mo 43Tc 44Ru 45Rh 46Pd 47Ag 48Cd 49In 50Sn 51Sb 52Te 53I 54Xe 55Cs 56Ba 57La 72Hf 73Ta 74W 75Re 76Os 77Ir 78Pt 79Au 80Hg 81Tl 82Pb 83Bi 84Po 85At 86Rn 87Fr 88Ra 89Ac 104Rf 105Db 106Sg 107Bh 108Hs 109Mt 110Ds 111Rg 112 113 114 115 116 mt 118

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


201

ET Parameters for Mixed-Valence Ru Complexes  

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

Convergence of Spectroscopic and Kinetic Electron Transfer Parameters for Convergence of Spectroscopic and Kinetic Electron Transfer Parameters for Mixed-Valence Binuclear Dipyridylamide Ruthenium Ammine Complexes Alison J. Distefano, James F. Wishart, and Stephan S. Isied Coord. Chem. Rev. 249, 507-516 (2005). [Find paper at Elsevier Science Direct] Abstract: A series of binuclear ruthenium(II,III) pentaammine complexes bridged by 4-pyridyl isonicotinamide (iso-apy) and methyl, 4-pyridyl isonicotinamide (iso-mapy), and their mononuclear congeners, were studied by spectroscopic and kinetic techniques. The amide functionality provides asymmetry between the electronic environments of the metal ions bound to the aminopyridine (apy) and pyridine carbonyl (iso) ends. The resulting difference is observed in the charge transfer spectra and the

202

Time and Frequency from A to Z: Re to Ru  

Science Conference Proceedings (OSTI)

... The natural frequency of an oscillator. ... The optical beam from the rubidium lamp pumps the 87 Rb buffer gas atoms into a particular energy state. ...

2010-10-05T23:59:59.000Z

203

Hydrogen adsorption on Ru(001) studied by Scanning Tunneling Microscopy  

E-Print Network (OSTI)

R.B. Anderson, The Fisher-Tropsch and Related Syntheses,for example in Fisher-Tropsch and Ammonia Synthesis

Tatarkhanov, Mous; Rose, Franck; Fomin, Evgeny; Ogletree, D. Frank; Salmeron, Miquel

2008-01-01T23:59:59.000Z

204

TMS PDF INSTRUCTIONS: MAC OS X  

Science Conference Proceedings (OSTI)

Macintosh HD: Applications: Utilities: Print Center. Step 3. The first thing you should see after launching this application is the list of printers currently installed  ...

205

Emerging trends in mobile OS platforms  

E-Print Network (OSTI)

Smartphones with a market penetration of over 31% in US among mobile users have become a mass-market product within a short 4-year period since the launch of iPhone. Tablets are showing similar trajectory in terms of ...

Mohammed, Irfan, S.M. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

206

Development and evaluation of aromatic polyamide-imide membranes for H?S and CO? separations from natural gas .  

E-Print Network (OSTI)

??Over the past decade, membrane based gas separations have gained traction in industry as an attractive alternative to traditional thermally based separations due to their… (more)

Vaughn, Justin

2013-01-01T23:59:59.000Z

207

March 7, 2012, USW Health Safety and Environment Conference Presentations - DOE Worker Safety and Health Regulatory Enforcement  

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

Worker Safety and Health Worker Safety and Health Regulatory Enforcement Kevin Dressman Director, Office of Worker Safety and Health Enforcement (HS-41) Office of Health, Safety and Security U.S. Department of Energy http://www.hss.energy.gov/enforce/ USW Health, Safety and Environment Conference HSS Workshop March 7, 2012 2 Office of Health, Safety and Security Chief Health, Safety and Security Officer HS-10 HS-20 HS-70 HS-80 HS-90 HS-1.1 HS-1 HS-11 HS-12 HS-13 HS-14 HS-21 HS-22 HS-23 HS-24 HS-81 HS-82 HS-83 HS-91 HS-92 HS-93 HS-94 Office of Departmental Representative to DNFSB and Liaison Outreach Office of Communications and Congressional Affairs Chief Medical Officer Office of Health and Safety Office of Environmental Protection, Sustainability Support,

208

Study of four new, field-based, microbiological tests : verification of the hydrogen sulfide (H?S), Easygel®, Colilert and Petrifilm(tm) tests  

E-Print Network (OSTI)

Currently, the U.N. defines water sources as "improved" (e.g. public taps, protected dug wells and springs, rainwater collection) and "unimproved" (e.g. surface waters, unprotected dug well and spring, and vended water). ...

Trottier, Stephanie (Stephanie Marie Gisele)

2010-01-01T23:59:59.000Z

209

TMS PostScript Instructions: "Classic" Mac OS  

Science Conference Proceedings (OSTI)

After installation is complete, launch the Desktop Printer Utility application ... Under the Printer Description list, highligh the “Acrobat Distiller” option and click on.

210

CryptoPalm: a cryptographic library for PalmOS  

Science Conference Proceedings (OSTI)

PDAs and other handheld devices are commonly used for processing private or otherwise secret information. Their increased usage along with their networking capabilities raises security considerations for the protection of the sensitive information they ...

Georgios C. Alexandridis; Artemios G. Voyiatzis; Dimitrios N. Serpanos

2005-11-01T23:59:59.000Z

211

Acta Crystallographica Section D Optimum solubility (OS) screening ...  

methane]; TCEP, tris(2-carboxyethyl) phos-phine. 2. Introduction Advances in X-ray crystallography have provided three-dimensional structures of

212

A trusted assessment environment in a network-booted OS  

Science Conference Proceedings (OSTI)

This paper describes how a laboratory where students usually access the LAN using personal accounts can be configured during examinations. Test questions are automatically corrected by a learning-management system, which is used to authenticate students ... Keywords: authentication, computer-assisted assessment, innovative web-based teaching and learning technologies, learning management system, platform integration, testing and assessment issues in web-based education

Giorgio Biacchi; Philip Grew; Elena Pagani

2007-03-01T23:59:59.000Z

213

ZeptoOS: Operating Systems for Petascale | Argonne National Laboratory  

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

Kamil Iskra Kazutomo Yoshii Other Contributors Ivan Beschastnikh (UW) Susan Coghlan (ALCF) Cameron Cooper (OSU) Aroon Nataraj (UO) Al Malony (UO) Sameer Shende (UO) Suravee...

214

engineering POstGraDuatePrOsPectus2011  

E-Print Network (OSTI)

to Glasgow and live at least 25 miles outside the city are given priority for a place in University of the University. These include a full symphonic wind band and big band, two choirs and a full-scale symphony

Mottram, Nigel

215

Ally: OS-Transparent Packet Inspection Using Sequestered Cores  

Science Conference Proceedings (OSTI)

This paper presents Ally, a server platform architecture that supports compute-intensive management services on multi-core processors. Ally introduces simple hardware mechanisms to sequester cores to run a separate software environment dedicated to management ... Keywords: multicore, packet inspection, isolation, computer architecture, multicore partitioning

Jen-Cheng Huang; Matteo Monchiero; Yoshio Turner; Hsien-Hsin S. Lee

2011-10-01T23:59:59.000Z

216

Mobile Device Management iOS Device Enrollment  

E-Print Network (OSTI)

Setup Instructions 2. Get the App from the Apple App Store a. Launch the App Store. b. Search Enroll app. b. Click Enroll. #12;c. Enter your LSUHSC email address. d. Tap Next. e. Enter your LSUHSC password. f. Tap Next. g. Accept the Terms and Conditions. 4. Tap 1 - Install Company Profile. #12;a. Tap

217

Enhancing the OS against Security Threats in System Administration  

E-Print Network (OSTI)

,25,37], offer more fine-grained protection [11], harden the TCB using formal verification [21], or use labeling or otherwise impact sensitive user data and processes, e.g., adding and remov- ing software packages-known Linux mechanisms and therefore show that the degree of protection proposed by the broker model

Ford, Bryan

218

Advanced Topics in OS: Multithreading 2 Michael Elhadad  

E-Print Network (OSTI)

() -- struct timeval time; time.tvâ??sec = 2; time.tvâ??usec = 0; for (;;) -- printf(''Otherwork...``n''); lwp timeval time; time.tvâ??sec = timeout; time.tvâ??usec = 0; lwpâ??sleep(&time); printf(''%s slept %d secs

Elhadad, Michael

219

Symantec Enterprise Vault Guide for Mac OS X Users  

E-Print Network (OSTI)

_name\\user_name. 3 Enter the search criteria, and then start the search. Customizing Enterprise Vault You can a license agreement and may be used only in accordance with the terms of the agreement. Last updated with the terms of this Agreement. Symantec Corporation 350 Ellis Street Mountain View, CA 94043 http

Wood, James B.

220

Os Efeitos da Seca nas Florestas Chuvosas Amazônicas P. Meir...  

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

Chuvosas Amaznicas P. Meir, 1 P. M. Brando, 2,3, 4 D. Nepstad, 5 S. Vasconcelos, 6 A. C. L. Costa, 7 E. Davidson, 4 S. Almeida, 8 R. A. Fisher, 9 E. D. Sotta, 10 D. Zarin,...

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


221

A memento web browser for iOS  

Science Conference Proceedings (OSTI)

The Memento framework allows web browsers to request and view archived web pages in a transparent fashion. However, Memento is still in the early stages of adoption, and browser-plugins are often required to enable Memento support. We report on a new ... Keywords: memento, mobile web, web archiving, web browser

Heather Tweedy; Frank McCown; Michael L. Nelson

2013-07-01T23:59:59.000Z

222

IN MEMORIAM PAUL ERD OS (1913-1996)  

E-Print Network (OSTI)

'antibiotiques : pleur´eesie s´eev`eere. Il s'approche du lit, et parle (trop) fort : -- Au revoir, Monsieur, j'ai laiss'ombre. Paul Erdos est n´ee `aa Budapest le 26 mars 1913, dans une famille juive. Son p`eere, Lajos, et sa m`eere demandera, bien plus tard, s'il a jamais ´eet´ee tent´ee par le mariage il r´eepondra : Mon caract`eere est

Tenenbaum, Gérald - Institut de Mathématiques �lie Cartan, Université Henri Poincaré

223

Isonitrile radionuclide complexes for labelling and imaging agents  

DOE Patents (OSTI)

A coordination complex of an isonitrile ligand and radionuclide such as Tc, Ru, Co, Pt, Fe, Os, Ir, W, Re, Cr, Mo, Mn, Ni, Rh, Pd, Nb and Ta, is useful as a diagnostic agent for labelling liposomes or vesicles, and selected living cells containing lipid membranes, such as blood clots, myocardial tissue, gall bladder tissue, etc.

Jones, Alun G. (Newton Centre, MA); Davison, Alan (Needham, MA); Abrams, Michael J. (Allston, MA)

1984-06-04T23:59:59.000Z

224

Planejamento regional / territorial : a interface entre os planos diretores de aproveitamentos hidrelétricos e os planos diretores municipais.  

E-Print Network (OSTI)

??This research allowed to understand the way the Managing Plan of Hydroelectric Plants affects the organization of the territory. The use and occupation of the… (more)

Francine Borges Silva

2007-01-01T23:59:59.000Z

225

High Pressure Pulse Radiolysis-Reduction Cyt c by Ru(II) Complexes  

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

for a for a Reversible Intermolecular Electron-Transfer Reaction involving Isonicotinamide(pentaammine)ruthenium and Cytochrome c Beate Bänsch, Martin Meier, Pablo Martinez, Rudi van Eldik, Chang Su, Ji Sun, Stephan S. Isied and James F. Wishart Inorg. Chem. 33, 4744-4749 (1994) Abstract: The reversible intermolecular electron-transfer reaction between pentaammineisonicotinamideruthenium(II/III) and horse-heart cytochrome c iron(III/II) was subjected to a detailed kinetic and thermodynamic study as a function of temperature and pressure. Theoretical calculations based on the Marcus-Hush theory were employed to predict all rate and equilibrium constants as well as activation parameters. There is an excellent agreement between the kinetically and thermodynamically determined equilibrium

226

The Effects of Re, W, and Ru on Microsegregation Behaviour in ...  

Science Conference Proceedings (OSTI)

this unavoidable human error, additional data processing was completed to find zero-heating rate transformation temperatures by extrapolating the data of all ...

227

A novel group authentication for RuBee sensors in wireless sensor networks  

Science Conference Proceedings (OSTI)

4G, the new generation mobile communication, will be formed among heterogeneous wireless networks, which include Wi-Fi, WPAN, etc. At the beginning of 2007, IEEE developed the new short-distance transmitting standard, IEEE1902.1, also known as ...

Tin-Yu Wu; Whai-En Chen; Hung-Lin Chan

2011-06-01T23:59:59.000Z

228

BIG RU N INDIANA LAKESHORE RUN E LUMBER CIT Y WARSAW JOHNST  

Annual Energy Outlook 2012 (EIA)

CORN ER S GRU GAN NEBRASKA AR TEMAS MILL R UN DRIF TING TOBY CR EEK RUNVILLE MURRYSVILLE CAT FISH R UN HECKMAN HOLLOW KART HAUS WEST FIELD POT R IDGE PARSONSVILLE RED BRUSH BLU E...

229

High Temperature Creep of Ru-Bearing Ni-Base Single Crystal ...  

Science Conference Proceedings (OSTI)

certain loading conditions, the rafted microstructure can be an effective .... As the load increased ... Philips PROFIT software was used to profile fit the {001} peak.

230

Electron Transfer in (NH3)5Ru-Cobaltocytochrome c  

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

Pentaammineruthenium(III)-Modified Cobaltocytochrome c Ji Sun, Chang Su, and James F. Wishart Inorg. Chem., 35, 5893-5901 (1996) Find paper at ACS Publications or use ACS...

231

Temperature control of pattern formation in the Ru(bpy)3 BZ-AOT system  

E-Print Network (OSTI)

, 389­391. 31 P. Kastanek, J. Kosek, D. Snita, I. Schreiber and M. Marek, Physica D, 1995, 84, 79­94. 32

Epstein, Irving R.

232

Experimental geothermal research facilities study (Phase O). Final report No. 26405-6001-RU-00  

DOE Green Energy (OSTI)

This study focuses on identification of a representative liquid-dominated geothermal reservoir of moderate temperature and salinity, preliminary design of an appropriate energy conversion system, identification of critical technology and planning for the implementation of experimental facilities. Results of Phase O of the project are reported in two volumes. Volume II presents detailed results of studies and analyses arranged in nine appendices including the final report by a subcontractor on the study. The specific appendices are: Appendix A: Geothermal Resources of the Western United States; Appendix B: Site Selection Process and the East Mesa Geothermal Field; Appendix C: East Mesa Geothermal Field Reservoir Characteristics; Appendix D: Advisor's Views and Comments; Appendix E: Thermodynamic Analyses; Appendix F: Material and Corrosion Factors; Appendix G: Preliminary Reliability/Maintainability Analyses; Appendix H: Environmental Impact Analysis Guidelines; and Appendix I: Report to the National Science Foundation/TRW Systems Group by Rogers Engineering Company, Inc., San Francisco, California.

Not Available

1974-12-31T23:59:59.000Z

233

Microstructural Stability and Creep of Ru-Containing Nickel-Base ...  

Science Conference Proceedings (OSTI)

distilled water and 65 ml butyl cellusolve. .... The creep curves of UM-F27 and UM -F30 ..... Larson Miller curves of commercial alloys were plotted with data.

234

Structure and Reactions of Carbon and Hydrogen on Ru(0001): A Scanning Tunneling Microscopy Study  

E-Print Network (OSTI)

reactions, including Fischer-Tropsch synthesis, whereby coalcatalytic activity in Fischer-Tropsch synthesis, hydrocarbon

Shimizu, Tomoko K.

2009-01-01T23:59:59.000Z

235

Effect of Ru Addition on Cast Nickel Base Superalloy with Low ...  

Science Conference Proceedings (OSTI)

Steels (Beijing, National Defence Press, 1999), 2. 4. Xuan Nguyen-Dir& “Phase Stable Single Crystal. Materials”, United Stated Patent Number 4, 935, 072,. Jun.

236

Determining the Behavior of RuO(x) Nanoparticles in Mixed-Metal Oxides:  

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

Mechanism of Ethanol Synthesis from Syngas on Rh(111) Understanding of Mechanism of Ethanol Synthesis from Syngas on Rh(111) Understanding of ethanol decomposition on Rh(1 1 1) from density functional theory and kinetic Monte Carlo simulations Theoretical perspective of alcohol decomposition and synthesis from CO2 hydrogenation