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1

Photonuclear reactions on 112,118,124Sn, natTe, and natHf targets  

NASA Astrophysics Data System (ADS)

The yields of products of photonuclear reactions on tin targets enriched in the isotopes 112,118,124Sn and on Te and HfO2 targets of natural isotopic composition were measured. The targets were irradiated at the linear electron accelerator of the A.I. Alikhanian National Science Laboratory (Yerevan Physics Institute) at the electron energy of E e = 40 MeV. The dependence of the product yields on the nucleonic composition of the targets was discussed. The isomeric ratios were obtained for the 119 m,g Te, 121 m,g Te, 117 m,g In, and 123 m,g Sn products. The experimental data in question were compared with their theoretical counterparts calculated on the basis of the TALYS 1.4 code. The dependence of the isomeric ratios on the photon energy and on the mass number of the product is considered.

Danagulyan, A. S.; Hovhannisyan, G. H.; Bakhshiyan, T. M.; Avagyan, R. H.; Avetisyan, A. E.; Kerobyan, I. A.; Dallakyan, R. K.

2014-11-01

2

Formal total syntheses of classic natural product target molecules via palladium-catalyzed enantioselective alkylation  

PubMed Central

Summary Pd-catalyzed enantioselective alkylation in conjunction with further synthetic elaboration enables the formal total syntheses of a number of “classic” natural product target molecules. This publication highlights recent methods for setting quaternary and tetrasubstituted tertiary carbon stereocenters to address the synthetic hurdles encountered over many decades across multiple compound classes spanning carbohydrate derivatives, terpenes, and alkaloids. These enantioselective methods will impact both academic and industrial settings, where the synthesis of stereogenic quaternary carbons is a continuing challenge. PMID:25383121

Liu, Yiyang; Liniger, Marc; McFadden, Ryan M; Roizen, Jenny L; Malette, Jacquie; Reeves, Corey M; Behenna, Douglas C; Seto, Masaki; Kim, Jimin; Mohr, Justin T; Virgil, Scott C

2014-01-01

3

Preparation of fibrous palladium  

SciTech Connect

Acrylic fibers (pan fibers) absorb palladium from a hot solution of palladium nitrate in nitric acid. When palladium-loaded acrylic fibers are burned, fibers consisting of palladium and palladium oxide are formed. Reduction of this mixture with hydrogen produces fibers of palladium metal. The fibers may be compressed into pellets which offer less resistance to flowing hydrogen than similar pellets prepared by compressing commercial palladium powder. 9 refs., 12 figs., 5 tabs.

Silver, G.L.; Seabaugh, P.W.; Leahy, B.T.; Werkmeister, D.W.; Martin, F.S.; Friedlander, H.N.

1988-06-15

4

Sputter target  

DOEpatents

The disclosure relates to an improved sputter target for use in the deposition of hard coatings. An exemplary target is given wherein titanium diboride is brazed to a tantalum backing plate using a gold-palladium-nickel braze alloy.

Gates, Willard G. (Kansas City, MO); Hale, Gerald J. (Overland Park, KS)

1980-01-01

5

Palladium on plastic substrates for plasmonic devices.  

PubMed

Innovative chips based on palladium thin films deposited on plastic substrates have been tested in the Kretschmann surface plasmon resonance (SPR) configuration. The new chips combine the advantages of a plastic support that is interesting and commercially appealing and the physical properties of palladium, showing inverted surface plasmon resonance (ISPR). The detection of DNA chains has been selected as the target of the experiment, since it can be applied to several medical early diagnostic tools, such as different biomarkers of cancers or cystic fibrosis. The results are encouraging for the use of palladium in SPR-based sensors of interest for both the advancement of biodevices and the development of hydrogen sensors. PMID:25585102

Zuppella, Paola; Pasqualotto, Elisabetta; Zuccon, Sara; Gerlin, Francesca; Corso, Alain Jody; Scaramuzza, Matteo; De Toni, Alessandro; Paccagnella, Alessandro; Pelizzo, Maria Guglielmina

2015-01-01

6

STS-118 Crew Portrait  

NASA Technical Reports Server (NTRS)

These seven astronauts take a break from training to pose for the STS-118 crew portrait. Pictured from the left are astronauts Richard A. 'Rick' Mastracchio, mission specialist; Barbara R. Morgan, mission specialist; Charles O. Hobaugh, pilot; Scott J. Kelly, commander; Tracy E. Caldwell, Canadian Space Agency's Dafydd R. 'Dave' Williams, and Alvin Drew Jr., all mission specialists. The crew members are attired in training versions of their shuttle launch and entry suits. The main objective of the STS-118 mission was to install the fifth Starboard (S5) truss segment on the International Space Station (ISS).

2007-01-01

7

Palladium nanowire hydrogen sensor  

Microsoft Academic Search

Palladium nanowires, synthesized by template-nanomanufacturing techniques, has been studied for hydrogen gas sensing applications at room temperature. In this study parallel arrays of Pd nanowires were fabricated by electrodeposition from an aqueous plating solution onto an HOPG surface. The nanowires were then transferred onto a polystyrene film and silver electrical contact pads were fabricated by shadow masking. The morphology of

Deep Banerji; Massood Z. Atashbar; Srikanth Singamaneni

2003-01-01

8

The semiconductivity and stability of palladium oxide  

NASA Technical Reports Server (NTRS)

Palladium metal films are prepared on quartz substrates by RF sputtering from a pure palladium target in an argon atmosphere. These films are then oxidized in air or in an oxygen atmosphere at 700 C for periods between 24 hr and 6 days. Either treatment is found to produce good-quality thin films of PdO with a uniform orange transmission. Attention is focused on optical and electrical conductivity measurements made on PdO films with a view toward determining their band gap, conductivity and thermal stability in vacuum and in the presence of oxygen. It is shown that hydrogen greatly reduces the thermal stability of PdO. The film decomposes to Pd metal by 350 K in the presence of hydrogen as compared to a temperature of about 580 K in vacuum.

Rey, E.; Miles, R. B.; Royce, B. S. H.; Kamal, M. R.

1978-01-01

9

Final Hazard Categorization for the Remediation of the 118-D-1, 118-D-2, 118-D-3, 118-H-1, 118-H-2, and 118-H-3 Solid Waste Burial Grounds  

SciTech Connect

This report presents the final hazard categorization (FHC) for the remediation of the 118-D-1, 118-D-2, and 118-D-3 Burial Grounds located within the 100-D/DR Area of the Hanford Site and the 118-H-1, 118-H-2, and 118-H-3 Burial Grounds located within the 100-H Area of the Hanford Site.

T. J. Rodovsky

2007-04-12

10

Final Hazard Categorization for the Remediation of the 118-D-1, 118-D-2, 118-D-3, 118-H-1, 118-H-2, and 118-H-3 Solid Waste Burial Grounds  

SciTech Connect

This report presents the final hazard categorization (FHC) for the remediation of the 118-D-1, 118-D-2, and 118-D-3 Burial Grounds located within the 100-D/DR Area of the Hanford Site and the 118-H-1, 118-H-2, and 118-H-3 Burial Grounds located within the 100-H Area of the Hanford Site.

T. J. Rodovsky

2006-12-06

11

Final Hazard Categorization for the Remediation of the 118-D-1, 118-D-2, 118-D-3, 118-H-1, 118-H-2 and 118-H-3 Solid Waste Burial Grounds  

SciTech Connect

This report presents the final hazard categorization for the remediation of the 118-D-1, 118-D-2, and 118-D-3 Burial Grounds located within the 100-D/DR Area of the Hanford Site and the 118-H-1, 118-H-2, and 118-H-3 Burial Grounds located within the 100-H Area of the Hanford Site.

K. L. Vialetti

2008-05-20

12

Nanostructured palladium membrane synthesis by magnetron sputtering  

Microsoft Academic Search

Palladium membranes are of technological interest since they show a very high selectivity for hydrogen. Diffusion through the palladium is often the rate-limiting step in hydrogen transport through the membrane. Hydrogen flux can be improved by reducing the membrane thickness and increasing the hydrogen diffusivity. Nanostructured palladium has a higher hydrogen diffusivity than conventional palladium due to its large volume

Kenneth J. Bryden; Jackie Y. Ying

1995-01-01

13

MONTANA PALLADIUM RESEARCH INITIATIVE  

SciTech Connect

Project Objective: The overarching objective of the Montana Palladium Research Initiative is to perform scientific research on the properties and uses of palladium in the context of the U.S. Department of Energy'Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?s Hydrogen, Fuel Cells and Infrastructure Technologies Program. The purpose of the research will be to explore possible palladium as an alternative to platinum in hydrogen-economy applications. To achieve this objective, the Initiatives activities will focus on several cutting-edge research approaches across a range of disciplines, including metallurgy, biomimetics, instrumentation development, and systems analysis. Background: Platinum-group elements (PGEs) play significant roles in processing hydrogen, an element that shows high potential to address this need in the U.S. and the world for inexpensive, reliable, clean energy. Platinum, however, is a very expensive component of current and planned systems, so less-expensive alternatives that have similar physical properties are being sought. To this end, several tasks have been defined under the rubric of the Montana Palladium Research Iniative. This broad swath of activities will allow progress on several fronts. The membrane-related activities of Task 1 employs state-of-the-art and leading-edge technologies to develop new, ceramic-substrate metallic membranes for the production of high-purity hydrogen, and develop techniques for the production of thin, defect-free platinum group element catalytic membranes for energy production and pollution control. The biomimetic work in Task 2 explores the use of substrate-attached hydrogen-producing enzymes and the encapsulation of palladium in virion-based protein coats to determine their utility for distributed hydrogen production. Task 3 work involves developing laser-induced breakdown spectroscopy (LIBS) as a real-time, in situ diagnostic technique to characterize PGEs nanoparticles for process monitoring and control. The systems engineering work in task 4 will determine how fuel cells Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?taken as systems behave over periods of time that should show how their reformers and other subsystems deteriorate with time.

Peters, John

2012-05-09

14

Doped palladium containing oxidation catalysts  

DOEpatents

A supported oxidation catalyst includes a support having a metal oxide or metal salt, and mixed metal particles thereon. The mixed metal particles include first particles including a palladium compound, and second particles including a precious metal group (PMG) metal or PMG metal compound, wherein the PMG metal is not palladium. The oxidation catalyst may also be used as a gas sensor.

Mohajeri, Nahid

2014-02-18

15

Palladium-Mediated Cell-Surface Labeling Christopher D. Spicer,  

E-print Network

- natural amino acids containing aryl halide side chains. This enabled site-selective cell surface-Miyaura chemistry into a cellular context, demonstrate low toxicity at effective palladium loadings, and confirm such as typhoid,17 so OmpC has become a target for vaccine platforms and for further study.14 It is therefore

Davis, Ben G.

16

Hydrogen absorption induced metal deposition on palladium and palladium-alloy particles  

DOEpatents

The present invention relates to methods for producing metal-coated palladium or palladium-alloy particles. The method includes contacting hydrogen-absorbed palladium or palladium-alloy particles with one or more metal salts to produce a sub-monoatomic or monoatomic metal- or metal-alloy coating on the surface of the hydrogen-absorbed palladium or palladium-alloy particles. The invention also relates to methods for producing catalysts and methods for producing electrical energy using the metal-coated palladium or palladium-alloy particles of the present invention.

Wang, Jia X. (East Setauket, NY); Adzic, Radoslav R. (East Setauket, NY)

2009-03-24

17

Final Hazard Categorization and Auditable Safety Analysis for the Remediation of the 118-D-1, 118-D-2, 118-D-3, 118-H-1, 118-H-2 and 118-H-3 Solid Waste Burial Grounds  

SciTech Connect

This report presents the initial hazard categorization, final hazard categorization and auditable safety analysis for the remediation of the 118-D-1, 118-D-2, and 118-D-3 Burial Grounds located within the 100-D/DR Area of the Hanford Site and the 118-H-1, 118-H-2, and 118-H-3 Burial Grounds located within the 100-H Area of the Hanford Site.

T. J. Rodovsky

2006-03-01

18

Final Hazard Categorization for the Remediation of the 118-D-1, 118-D-2, 118-D-3, 118-H-1, 118-H-2, and 118-H-3 Solid Waste Burial Grounds  

SciTech Connect

This report presents the final hazard categorization for the remediation of the 118-D-1, 118-D-2, 118-D-3 Burial Grounds located within the 100-D/DR Area of the Hanford Site and the 118-H-1, 118-H-2, and 118-H-3 Burial Grounds located within the 100-H Area of the Hanford Site. A material at risk calculation was performed that determined the radiological inventory for each burial ground to be Hazard Category 3.

J.D. Ludowise

2009-06-17

19

Study of palladium plating components  

NASA Technical Reports Server (NTRS)

Palladium deposits were prepared by electrolysis for evaluation as catalytic materials. Electrolysis was carried out in acidic solutions consisting of either 1.0 M in NaCl and 0.01 M PdCl2 or 1.0 M NaCl and 0.04 M PdCl2. It was during the preparation of the palladium deposits that unexpected observations were made that led to the request for analytical services. The analyses did not, nor were they intended to, answer all of the questions. They did, however, shed light on the nature and magnitude of some of the contaminants in the solutions and in the palladium electrodes, as well as characterize the forms of the palladium deposits. Results of analyses are grouped into solution, deposit, and electrode categories for comparison purposes.

1977-01-01

20

7 CFR 1260.118 - Cattle.  

Code of Federal Regulations, 2010 CFR

...Agriculture 10 2010-01-01 2010-01-01 false Cattle. 1260.118 Section 1260.118 Agriculture ...Promotion and Research Order Definitions § 1260.118 Cattle. Cattle means live domesticated bovine animals regardless...

2010-01-01

21

7 CFR 1260.118 - Cattle.  

Code of Federal Regulations, 2011 CFR

...Agriculture 10 2011-01-01 2011-01-01 false Cattle. 1260.118 Section 1260.118 Agriculture ...Promotion and Research Order Definitions § 1260.118 Cattle. Cattle means live domesticated bovine animals regardless...

2011-01-01

22

46 CFR 118.300 - Fire pumps.  

Code of Federal Regulations, 2013 CFR

...Shipping 4 2013-10-01 2013-10-01 false Fire pumps. 118.300 Section 118.300 Shipping...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.300 Fire pumps....

2013-10-01

23

46 CFR 118.300 - Fire pumps.  

Code of Federal Regulations, 2012 CFR

...Shipping 4 2012-10-01 2012-10-01 false Fire pumps. 118.300 Section 118.300 Shipping...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.300 Fire pumps....

2012-10-01

24

46 CFR 118.300 - Fire pumps.  

Code of Federal Regulations, 2014 CFR

...Shipping 4 2014-10-01 2014-10-01 false Fire pumps. 118.300 Section 118.300 Shipping...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.300 Fire pumps....

2014-10-01

25

40 CFR 35.118 - Unexpended balances.  

Code of Federal Regulations, 2011 CFR

... 2011-07-01 false Unexpended balances. 35.118 Section 35.118 Protection...Requirements § 35.118 Unexpended balances. Subject to any relevant provisions...Financial Status Report shows unexpended balances, the Regional Administrator will...

2011-07-01

26

40 CFR 35.118 - Unexpended balances.  

Code of Federal Regulations, 2014 CFR

... 2014-07-01 false Unexpended balances. 35.118 Section 35.118 Protection...Requirements § 35.118 Unexpended balances. Subject to any relevant provisions...Financial Status Report shows unexpended balances, the Regional Administrator will...

2014-07-01

27

40 CFR 35.118 - Unexpended balances.  

Code of Federal Regulations, 2013 CFR

... 2013-07-01 false Unexpended balances. 35.118 Section 35.118 Protection...Requirements § 35.118 Unexpended balances. Subject to any relevant provisions...Financial Status Report shows unexpended balances, the Regional Administrator will...

2013-07-01

28

40 CFR 35.118 - Unexpended balances.  

Code of Federal Regulations, 2010 CFR

... 2010-07-01 false Unexpended balances. 35.118 Section 35.118 Protection...Requirements § 35.118 Unexpended balances. Subject to any relevant provisions...Financial Status Report shows unexpended balances, the Regional Administrator will...

2010-07-01

29

40 CFR 35.118 - Unexpended balances.  

Code of Federal Regulations, 2012 CFR

... 2012-07-01 false Unexpended balances. 35.118 Section 35.118 Protection...Requirements § 35.118 Unexpended balances. Subject to any relevant provisions...Financial Status Report shows unexpended balances, the Regional Administrator will...

2012-07-01

30

Extracellular Palladium Nanoparticle Production using Geobacter sulfurreducens  

E-print Network

INTRODUCTION Palladium is a precious metal commonly used in catalytic converters of automobiles to lower catalytic nanoparticles. Palladium nanoparticles can be produced via microbial reduction of soluble Pd capping agents and stabilizers.8 The catalytic activity of biologically supported palladium nano

31

Palladium/kieselguhr composition and method  

DOEpatents

A hydrogen-absorbing composition and method for making such a composition. The composition comprises a metal hydride, preferably palladium, deposited onto a porous substrate such as kieselguhr, for use in hydrogen-absorbing processes. The composition is made by immersing a substrate in a concentrated solution containing palladium, such as tetra-amine palladium nitrate. Palladium from the solution is deposited onto the porous substrate, which is preferably in the form of kieselguhr particles. The substrate is then removed from the solution, calcined, and heat treated. This process is repeated until the desired amount of palladium has been deposited onto the substrate.

Mosley, Jr., Wilbur C. (202 Fairway Dr., New Ellenton, SC 29809)

1993-01-01

32

Palladium/kieselguhr composition and method  

DOEpatents

A hydrogen-absorbing composition and method for making such a composition are described. The composition comprises a metal hydride, preferably palladium, deposited onto a porous substrate such as kieselguhr, for use in hydrogen-absorbing processes. The composition is made by immersing a substrate in a concentrated solution containing palladium, such as tetra-amine palladium nitrate. Palladium from the solution is deposited onto the porous substrate, which is preferably in the form of kieselguhr particles. The substrate is then removed from the solution, calcined, and heat treated. This process is repeated until the desired amount of palladium has been deposited onto the substrate.

Mosley, W.C. Jr.

1993-09-28

33

Microfabrication of palladium-silver alloy membranes for hydrogen separation  

Microsoft Academic Search

In this paper, a process for the microfabrication of a wafer-scale palladium-silver alloy membrane (Pd-Ag) is presented. Pd-Ag alloy films containing 23 wt% Ag were prepared by co-sputtering from pure Pd and Ag targets. The films were deposited on the unetched side of a -oriented silicon wafer in which deep grooves were etched in a concentrated KOH solution, leaving silicon

Hien Duy Tong; J. W. Ervin Berenschot; Meint J. De Boer; J. G. E. Gardeniers; Henk Wensink; Henri V. Jansen; Wietze Nijdam; Miko C. Elwenspoek; F. C. Gielens; C. J. M. van Rijn

2003-01-01

34

Electrically conductive palladium containing polyimide films  

NASA Technical Reports Server (NTRS)

Lightweight, high temperature resistant, electrically conductive, palladium containing polyimide films and methods for their preparation are described. A palladium (II) ion-containing polyamic acid solution is prepared by reacting an aromatic dianhydride with an equimolar quantity of a palladium II ion-containing salt or complex and the reactant product is cast as a thin film onto a surface and cured at approximately 300 C to produce a flexible electrically conductive cyclic palladium containing polyimide. The source of palladium ions is selected from the group of palladium II compounds consisting of LiPdCl4, PdS(CH3)2Cl2Na2PdCl4, and PdCl2. The films have application to aerodynamic and space structures and in particular to the relieving of space charging effects.

Taylor, L. T.; St.clair, A. K.; Carver, V. C.; Furtsch, T. A. (inventors)

1982-01-01

35

7 CFR 1150.118 - Marketing.  

Code of Federal Regulations, 2010 CFR

... 9 2010-01-01 2009-01-01 true Marketing. 1150.118 Section 1150.118 Agriculture...Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing Agreements and Orders; Milk), DEPARTMENT...

2010-01-01

36

Atomistic potentials for palladium-silver hydrides  

NASA Astrophysics Data System (ADS)

New embedded-atom method potentials for the ternary palladium-silver-hydrogen system are developed by extending a previously developed palladium-hydrogen potential. The ternary potentials accurately capture the heat of mixing and structural properties associated with solid solution alloys of palladium-silver. Stable hydrides are produced with properties that smoothly transition across the compositions. Additions of silver to palladium are predicted to alter the properties of the hydrides by decreasing the miscibility gap and increasing the likelihood of hydrogen atoms occupying tetrahedral interstitial sites over octahedral interstitial sites.

Hale, L. M.; Wong, B. M.; Zimmerman, J. A.; Zhou, X. W.

2013-06-01

37

33 CFR 118.130 - Fog signals.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Fog signals. 118.130 Section 118.130...LIGHTING AND OTHER SIGNALS § 118.130 Fog signals. On waterways where visibility is frequently reduced due to fog or other causes, the District...

2010-07-01

38

33 CFR 118.130 - Fog signals.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false Fog signals. 118.130 Section 118.130...LIGHTING AND OTHER SIGNALS § 118.130 Fog signals. On waterways where visibility is frequently reduced due to fog or other causes, the District...

2011-07-01

39

46 CFR 118.300 - Fire pumps.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Fire pumps. 118.300 Section 118.300 Shipping...EQUIPMENT Fire Main System § 118.300 Fire pumps. (a) A self priming, power driven fire pump must be installed on each vessel....

2010-10-01

40

28 CFR 11.8 - Salary offset.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false Salary offset. 11.8 Section 11.8 ...Administration of Debt Collection § 11.8 Salary offset. (a) Notice requirements before...Offset a minimum of 30 calendar days before salary offset is initiated. The Notice of...

2011-07-01

41

28 CFR 11.8 - Salary offset.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Salary offset. 11.8 Section 11.8 ...Administration of Debt Collection § 11.8 Salary offset. (a) Notice requirements before...Offset a minimum of 30 calendar days before salary offset is initiated. The Notice of...

2010-07-01

42

Electronic transition of palladium monoboride.  

PubMed

The laser-induced fluorescence spectrum of palladium monoboride (PdB) in the visible region between 465 and 520 nm has been observed and analyzed. Gas-phase PdB molecules were produced by the reaction of diborane (B(2)H(6)) seeded in argon with laser ablated palladium atoms. Thirteen vibrational bands have been recorded, which included transitions of both Pd(10)B and Pd(11)B isotopic species. These bands belong to the [19.7](2)?(+)-X(2)?(+) system, with ground X(2)?(+) state bond length, r(o), determined to be 1.7278 Å. A molecular orbital energy level diagram was used to understand the observed ground and excited electronic states. This work represents the first experimental investigation of the electronic spectroscopy of the PdB molecule. PMID:23121077

Ng, Y W; Pang, H F; Qian, Yue; Cheung, A S-C

2012-11-29

43

Electronic transitions of palladium dimer  

SciTech Connect

The laser induced fluorescence spectrum of palladium dimer (Pd{sub 2}) in the visible region between 480 and 700 nm has been observed and analyzed. The gas-phase Pd{sub 2} molecule was produced by laser ablation of palladium metal rod. Eleven vibrational bands were observed and assigned to the [17.1] {sup 3}II{sub g} - X{sup 3}?{sub u}{sup +} transition system. The bond length (r{sub o}) and vibrational frequency (?G{sub 1/2}) of the ground X{sup 3}?{sub u}{sup +} state were determined to be 2.47(4) Å and 211.4(5) cm{sup ?1}, respectively. A molecular orbital energy level diagram was used to understand the observed ground and excited electronic states. This is the first gas-phase experimental investigation of the electronic transitions of Pd{sub 2}.

Qian, Yue; Ng, Y. W.; Chen, Zhihua; Cheung, A. S.-C., E-mail: hrsccsc@hku.hk [Department of Chemistry, The University of Hong Kong, Pokfulam Road (Hong Kong)

2013-11-21

44

Palladium-catalyzed 2,5-diheteroarylation of 2,5-dibromothiophene derivatives  

PubMed Central

Summary Conditions allowing the one pot 2,5-diheteroarylation of 2,5-dibromothiophene derivatives in the presence of palladium catalysts are reported. Using KOAc as the base, DMA as the solvent and only 0.5–2 mol % palladium catalysts, the target 2,5-diheteroarylated thiophenes were obtained in moderate to good yields and with a wide variety of heteroarenes such as thiazoles, thiophenes, furans, pyrroles, pyrazoles or isoxazoles. Moreover, sequential heteroarylation reactions allow the access to 2,5-diheteroarylated thiophenes bearing two different heteroaryl units. PMID:25550758

Belkessam, Fatma; Mohand, Aidene; Soulé, Jean-François

2014-01-01

45

Local atomic structures of palladium nanowire  

Microsoft Academic Search

In this paper, investigation of the structure of palladium nanowire has been performed by using genetic algorithm simulation based on the molecular dynamics. Our calculation employs a well-fitted, tight-binding many-body potential for Pd atoms. Some local atomic structures and defects in nanowires have been reported. The melting behavior of palladium nanowire has also been investigated. An interesting result is that

Li Hui; B. L. Wang; J. L. Wang; G. H. Wang

2004-01-01

46

48 CFR 1371.118 - Changes-ship repair.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Changes-ship repair. 1371.118 Section 1371.118 Federal...DEPARTMENT SUPPLEMENTAL REGULATIONS ACQUISITIONS INVOLVING SHIP CONSTRUCTION AND SHIP REPAIR Provisions and Clauses 1371.118...

2010-10-01

47

48 CFR 1371.118 - Changes-ship repair.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Changes-ship repair. 1371.118 Section 1371.118 Federal...DEPARTMENT SUPPLEMENTAL REGULATIONS ACQUISITIONS INVOLVING SHIP CONSTRUCTION AND SHIP REPAIR Provisions and Clauses 1371.118...

2011-10-01

48

48 CFR 1371.118 - Changes-ship repair.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Changes-ship repair. 1371.118 Section 1371.118 Federal...DEPARTMENT SUPPLEMENTAL REGULATIONS ACQUISITIONS INVOLVING SHIP CONSTRUCTION AND SHIP REPAIR Provisions and Clauses 1371.118...

2013-10-01

49

48 CFR 1371.118 - Changes-ship repair.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Changes-ship repair. 1371.118 Section 1371.118 Federal...DEPARTMENT SUPPLEMENTAL REGULATIONS ACQUISITIONS INVOLVING SHIP CONSTRUCTION AND SHIP REPAIR Provisions and Clauses 1371.118...

2012-10-01

50

48 CFR 1371.118 - Changes-ship repair.  

Code of Federal Regulations, 2014 CFR

...2014-10-01 2014-10-01 false Changes-ship repair. 1371.118 Section 1371.118 Federal...DEPARTMENT SUPPLEMENTAL REGULATIONS ACQUISITIONS INVOLVING SHIP CONSTRUCTION AND SHIP REPAIR Provisions and Clauses 1371.118...

2014-10-01

51

10 CFR 1.18 - Advisory Committee on Nuclear Waste.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 false Advisory Committee on Nuclear Waste. 1.18 Section 1.18 Energy NUCLEAR REGULATORY COMMISSION STATEMENT OF ORGANIZATION...Committees § 1.18 Advisory Committee on Nuclear Waste. The Advisory Committee on...

2011-01-01

52

10 CFR 1.18 - Advisory Committee on Nuclear Waste.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Advisory Committee on Nuclear Waste. 1.18 Section 1.18 Energy NUCLEAR REGULATORY COMMISSION STATEMENT OF ORGANIZATION...Committees § 1.18 Advisory Committee on Nuclear Waste. The Advisory Committee on...

2010-01-01

53

10 CFR 1.18 - Advisory Committee on Nuclear Waste.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 false Advisory Committee on Nuclear Waste. 1.18 Section 1.18 Energy NUCLEAR REGULATORY COMMISSION STATEMENT OF ORGANIZATION...Committees § 1.18 Advisory Committee on Nuclear Waste. The Advisory Committee on...

2014-01-01

54

10 CFR 1.18 - Advisory Committee on Nuclear Waste.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 false Advisory Committee on Nuclear Waste. 1.18 Section 1.18 Energy NUCLEAR REGULATORY COMMISSION STATEMENT OF ORGANIZATION...Committees § 1.18 Advisory Committee on Nuclear Waste. The Advisory Committee on...

2013-01-01

55

10 CFR 1.18 - Advisory Committee on Nuclear Waste.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 false Advisory Committee on Nuclear Waste. 1.18 Section 1.18 Energy NUCLEAR REGULATORY COMMISSION STATEMENT OF ORGANIZATION...Committees § 1.18 Advisory Committee on Nuclear Waste. The Advisory Committee on...

2012-01-01

56

28 CFR 115.118 - Upgrades to facilities and technologies.  

Code of Federal Regulations, 2013 CFR

...facilities and technologies. 115.118 Section 115.118 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) PRISON RAPE ELIMINATION ACT NATIONAL STANDARDS Standards for Lockups Prevention Planning § 115.118 Upgrades to facilities and...

2013-07-01

57

28 CFR 115.118 - Upgrades to facilities and technologies.  

Code of Federal Regulations, 2012 CFR

...facilities and technologies. 115.118 Section 115.118 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) PRISON RAPE ELIMINATION ACT NATIONAL STANDARDS Standards for Lockups Prevention Planning § 115.118 Upgrades to facilities and...

2012-07-01

58

33 CFR 118.10 - Interference or obstruction prohibited.  

Code of Federal Regulations, 2010 CFR

...Navigable Waters 1 2010-07-01 2010-07-01 false Interference or obstruction prohibited. 118.10 Section 118.10...BRIDGES BRIDGE LIGHTING AND OTHER SIGNALS § 118.10 Interference or obstruction prohibited. No person shall obstruct...

2010-07-01

59

33 CFR 118.10 - Interference or obstruction prohibited.  

Code of Federal Regulations, 2014 CFR

...Navigable Waters 1 2014-07-01 2014-07-01 false Interference or obstruction prohibited. 118.10 Section 118.10...BRIDGES BRIDGE LIGHTING AND OTHER SIGNALS § 118.10 Interference or obstruction prohibited. No person shall obstruct...

2014-07-01

60

33 CFR 118.80 - Lights on bascule bridges.  

Code of Federal Regulations, 2014 CFR

... 2014-07-01 2014-07-01 false Lights on bascule bridges. 118.80 Section 118...BRIDGE LIGHTING AND OTHER SIGNALS § 118.80 Lights on bascule bridges. (a) Lift span lights. Each lift span of every bascule...

2014-07-01

61

33 CFR 118.70 - Lights on swing bridges.  

Code of Federal Regulations, 2014 CFR

... 2014-07-01 2014-07-01 false Lights on swing bridges. 118.70 Section 118...BRIDGE LIGHTING AND OTHER SIGNALS § 118.70 Lights on swing bridges. (a) Swing span lights on through bridges. Each swing...

2014-07-01

62

33 CFR 118.140 - Painting bridge piers.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Painting bridge piers. 118.140 Section 118.140 ...SIGNALS § 118.140 Painting bridge piers. The District Commander may require painting the sides of bridge channel piers below the superstructure facing...

2011-07-01

63

33 CFR 118.140 - Painting bridge piers.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Painting bridge piers. 118.140 Section 118.140 ...SIGNALS § 118.140 Painting bridge piers. The District Commander may require painting the sides of bridge channel piers below the superstructure facing...

2010-07-01

64

33 CFR 118.30 - Action by Coast Guard.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Action by Coast Guard. 118.30 Section 118.30...Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY...SIGNALS § 118.30 Action by Coast Guard. (a) The District Commander receiving...

2010-07-01

65

33 CFR 118.30 - Action by Coast Guard.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 false Action by Coast Guard. 118.30 Section 118.30...Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY...SIGNALS § 118.30 Action by Coast Guard. (a) The District Commander receiving...

2012-07-01

66

33 CFR 118.30 - Action by Coast Guard.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Action by Coast Guard. 118.30 Section 118.30...Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY...SIGNALS § 118.30 Action by Coast Guard. (a) The District Commander receiving...

2011-07-01

67

33 CFR 118.30 - Action by Coast Guard.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false Action by Coast Guard. 118.30 Section 118.30...Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY...SIGNALS § 118.30 Action by Coast Guard. (a) The District Commander receiving...

2013-07-01

68

33 CFR 118.30 - Action by Coast Guard.  

Code of Federal Regulations, 2014 CFR

...2014-07-01 false Action by Coast Guard. 118.30 Section 118.30...Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY...SIGNALS § 118.30 Action by Coast Guard. (a) The District Commander receiving...

2014-07-01

69

Palladium catalyzed hydrogenation of bio-oils and organic compounds  

DOEpatents

The invention provides palladium-catalyzed hydrogenations of bio-oils and certain organic compounds. Experimental results have shown unexpected and superior results for palladium-catalyzed hydrogenations of organic compounds typically found in bio-oils.

Elliott, Douglas C. (Richland, WA); Hu, Jianli (Kennewick, WA); Hart, Todd R. (Kennewick, WA); Neuenschwander, Gary G. (Burbank, WA)

2008-09-16

70

FL118 Induces p53-Dependent Senescence in Colorectal Cancer Cells by Promoting Degradation of MdmX.  

PubMed

Anticancer agent FL118 was recently identified in screening of small-molecule inhibitors of human survivin expression. Although FL118 is a camptothecin analogue, its antitumor potency is much superior to other FDA-approved camptothecin analogues (irinotecan and topotecan). The mechanism of action (MOA) underlying the antitumor effects of FL118 remains to be fully elucidated. Here, we report that FL118 activates tumor suppressor p53 as a novel MOA in p53 wild-type cancer cells. Our studies show that this MOA involves an induction of proteasomal degradation of MdmX, a critical negative regulator of p53, in a manner largely independent of ATM-dependent DNA damage signaling pathway but dependent on E3-competent Mdm2. FL118 inhibits p53 polyubiquitination and monoubiquitination by Mdm2-MdmX E3 complex in cells and in cell-free systems. In contrast, FL118 stimulates Mdm2-mediated MdmX ubiquitination. Coimmunoprecipitation revealed that FL118 slightly decreases Mdm2-p53 interactions and moderately increases Mdm2-MdmX interactions, suggesting a change of targeting specificity of Mdm2-MdmX E3 complex from p53 to MdmX, resulting in accelerated MdmX degradation. As a result, p53 ubiquitination by Mdm2-MdmX E3 complex is reduced, which in turn activates p53 signaling. Activation of the p53 pathway by FL118 induces p53-dependent senescence in colorectal cancer cells. However, in the absence of p53 or in the presence of MdmX overexpression, FL118 promotes p53-independent apoptosis. These two distinct cellular consequences collectively contribute to the potent effects of FL118 to inhibit clonogenic potential of colon cancer cells. This study identifies a potential application of FL118 as an MdmX inhibitor for targeted therapies. Cancer Res; 74(24); 7487-97. ©2014 AACR. PMID:25512388

Ling, Xiang; Xu, Chao; Fan, Chuandong; Zhong, Kai; Li, Fengzhi; Wang, Xinjiang

2014-12-15

71

The transition in hydrogen sensing behavior in noncontinuous palladium films  

E-print Network

The transition in hydrogen sensing behavior in noncontinuous palladium films Thomas Kiefer,1,a Luis transition in ultrathin palladium Pd films around the percolation threshold and the related transition such as evaporation or sputtering.3,4 In particular ultrathin palladium Pd films have been recently attracting

Psaltis, Demetri

72

Atomistic simulation of helium bubble nucleation in palladium  

Microsoft Academic Search

A palladium crystal has been constructed with 11808 atoms. 55 helium atoms occupied the octahedral position of palladium crystal are introduced and retained in a spherical region. Molecular dynamic simulations are performed in a constant temperature and constant volume ensemble (NVT) with temperature controlled by Nose–Hoover thermostat. The interactions between palladium atoms are described with modified analytic embedded atom method

Liang Wang; Wangyu Hu; Shifang Xiao; Jianyu Yang; Huiqiu Deng

2009-01-01

73

Palladium-cobalt particles as oxygen-reduction electrocatalysts  

DOEpatents

The present invention relates to palladium-cobalt particles useful as oxygen-reducing electrocatalysts. The invention also relates to oxygen-reducing cathodes and fuel cells containing these palladium-cobalt particles. The invention additionally relates to methods for the production of electrical energy by using the palladium-cobalt particles of the invention.

Adzic, Radoslav (East Setauket, NY); Huang, Tao (Manorville, NY)

2009-12-15

74

Effect of Fretting on the Contact Resistance of Palladium  

Microsoft Academic Search

The fretting of palladium contacts was studied at conditions relevant to their use in separable electronic connectors. Wrought, clad, and electroplated palladium mated to wrought palladium develop high contact resistance due to the formation of friction polymer. This can occur in ordinary room air which contains traces of organic air pollutants. Contact resistance changes diminish as force is increased. Static

MORTON ANTLER; EDWARD S. SPROLES

1982-01-01

75

46 CFR 118.300 - Fire pumps.  

Code of Federal Regulations, 2011 CFR

...ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.300 Fire pumps. (a) A self priming, power driven fire pump must be installed on each vessel. (b) On a vessel without overnight accommodations,...

2011-10-01

76

16 CFR 1.18 - Rulemaking record.  

Code of Federal Regulations, 2011 CFR

...1.18 Commercial Practices FEDERAL TRADE COMMISSION ORGANIZATION, PROCEDURES AND RULES OF PRACTICE GENERAL PROCEDURES ...Statement of Basis and Purpose, the verbatim transcripts of the informal hearing, written submissions, the recommended...

2011-01-01

77

9 CFR 3.118 - Handling.  

Code of Federal Regulations, 2014 CFR

...Treatment, and Transportation of Marine Mammals Transportation Standards § 3.118...and intermediate handlers moving marine mammals from the animal holding area of the...must be provided to protect the marine mammals. Marine mammals must not be...

2014-01-01

78

Dasycladus ramosus, WNC2005-118  

NSDL National Science Digital Library

WNC2005-118, Dasycladus ramosus Chamberlain, intertidal, Jesser Point, Sodwana Bay, Kwazulu-Natal, South Africa, collection SA05-070, 18 Aug 2005, Coll: Brooke Stuercke, Det: B Stuercke & DW Freshwater, voucher for Fritz's study 1 of 2

Dr. Wilson Freshwater

2008-03-07

79

21 CFR 118.3 - Definitions.  

Code of Federal Regulations, 2010 CFR

... PRODUCTION, STORAGE, AND TRANSPORTATION OF SHELL EGGS § 118.3 Definitions. The...poultry house containing laying hens which produce shell eggs for human consumption. Shell egg (or egg) means the egg of the...

2010-04-01

80

49 CFR 195.118 - Fittings.  

Code of Federal Regulations, 2012 CFR

... PIPELINE SAFETY TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE Design Requirements § 195.118 Fittings. (a) Butt-welding type fittings must meet the marking, end preparation, and the bursting strength requirements of ASME/ANSI...

2012-10-01

81

49 CFR 195.118 - Fittings.  

Code of Federal Regulations, 2010 CFR

... PIPELINE SAFETY TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE Design Requirements § 195.118 Fittings. (a) Butt-welding type fittings must meet the marking, end preparation, and the bursting strength requirements of ASME/ANSI...

2010-10-01

82

49 CFR 195.118 - Fittings.  

Code of Federal Regulations, 2013 CFR

... PIPELINE SAFETY TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE Design Requirements § 195.118 Fittings. (a) Butt-welding type fittings must meet the marking, end preparation, and the bursting strength requirements of ASME/ANSI...

2013-10-01

83

49 CFR 195.118 - Fittings.  

Code of Federal Regulations, 2011 CFR

... PIPELINE SAFETY TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE Design Requirements § 195.118 Fittings. (a) Butt-welding type fittings must meet the marking, end preparation, and the bursting strength requirements of ASME/ANSI...

2011-10-01

84

A SIMPLE, RECYCLABLE, POLYMER-SUPPORTED PALLADIUM CATALYST FOR SUZUKI COUPLING—AN EFFECTIVE WAY TO MINIMIZE PALLADIUM CONTAMINATION  

Microsoft Academic Search

To address the challenges encountered in homogeneous catalytic processes, such as the minimization of metal contamination and the recycling of the catalysts, a polymer-supported palladium catalyst for Suzuki coupling was developed. The application of this heterogeneous palladium catalyst to the synthesis of a novel, amino-tetralin type, pharmaceutical ingredient led to a very low residual palladium content (<1.1 ppm).

Wen-Chung Shieh; Ratna Shekhar; Thomas Blacklock; Anthony Tedesco

2002-01-01

85

Small palladium islands embedded in palladium-tungsten bimetallic nanoparticles form catalytic hotspots for oxygen reduction.  

PubMed

The sluggish kinetics of the oxygen reduction reaction at the cathode side of proton exchange membrane fuel cells is one major technical challenge for realizing sustainable solutions for the transportation sector. Finding efficient yet cheap electrocatalysts to speed up this reaction therefore motivates researchers all over the world. Here we demonstrate an efficient synthesis of palladium-tungsten bimetallic nanoparticles supported on ordered mesoporous carbon. Despite a very low percentage of noble metal (palladium:tungsten=1:8), the hybrid catalyst material exhibits a performance equal to commercial 60% platinum/Vulcan for the oxygen reduction process. The high catalytic efficiency is explained by the formation of small palladium islands embedded at the surface of the palladium-tungsten bimetallic nanoparticles, generating catalytic hotspots. The palladium islands are ~1?nm in diameter, and contain 10-20 palladium atoms that are segregated at the surface. Our results may provide insight into the formation, stabilization and performance of bimetallic nanoparticles for catalytic reactions. PMID:25308245

Hu, Guangzhi; Nitze, Florian; Gracia-Espino, Eduardo; Ma, Jingyuan; Barzegar, Hamid Reza; Sharifi, Tiva; Jia, Xueen; Shchukarev, Andrey; Lu, Lu; Ma, Chuansheng; Yang, Guang; Wågberg, Thomas

2014-01-01

86

Viral-templated Palladium Nanocatalysts  

NASA Astrophysics Data System (ADS)

Despite recent progress on nanocatalysis, there exist several critical challenges in simple and readily controllable nanocatalyst synthesis including the unpredictable particle growth, deactivation of catalytic activity, cumbersome catalyst recovery and lack of in-situ reaction monitoring. In this dissertation, two novel approaches are presented for the fabrication of viral-templated palladium (Pd) nanocatalysts, and their catalytic activities for dichromate reduction reaction and Suzuki Coupling reaction were thoroughly studied. In the first approach, viral template based bottom-up assembly is employed for the Pd nanocatalyst synthesis in a chip-based format. Specifically, genetically displayed cysteine residues on each coat protein of Tobacco Mosaic Virus (TMV) templates provide precisely spaced thiol functionalities for readily controllable surface assembly and enhanced formation of catalytically active Pd nanoparticles. Catalysts with the chip-based format allow for simple separation and in-situ monitoring of the reaction extent. Thorough examination of synthesis-structure-activity relationship of Pd nanoparticles formed on surface-assembled viral templates shows that Pd nanoparticle size, catalyst loading density and catalytic activity of viral-templated Pd nanocatalysts can be readily controlled simply by tuning the synthesis conditions. The viral-templated Pd nanocatalysts with optimized synthesis conditions are shown to have higher catalytic activity per unit Pd mass than the commercial Pd/C catalysts. Furthermore, tunable and selective surface assembly of TMV biotemplates is exploited to control the loading density and location of Pd nanocatalysts on solid substrates via preferential electroless deposition. In addition, the catalytic activities of surface-assembled TMV-templated Pd nanocatalysts were also investigated for the ligand-free Suzuki Coupling reaction under mild reaction conditions. The chip-based format enables simple catalyst separation and reuse as well as facile product recovery. Reaction condition studies show that the solvent ratio played an important role in the selectivity of the Suzuki reaction, and that a higher water/acetonitrile ratio significantly facilitated the cross-coupling pathway. Meanwhile, in-depth characterizations including Atomic Force Microscopy (AFM), Grazing Incidence Small Angle X-ray Scattering (GISAXS), Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) and X-ray Photoelectron Spectroscopy (XPS) were carried out for these chip-based viral-templated Pd nanocatalysts. In the second approach, catalytically active TMV-templated Pd nanoparticles are encapsulated in readily exploited polymeric microparticle formats. Specifically, small (1˜2 nm), uniform and highly crystalline palladium (Pd) nanoparticles are spontaneously formed along (TMV) biotemplates without external reducing agents. The as-prepared Pd-TMV complexes are integrated into the hybrid poly(ethylene glycol)(PEG)-based microparticles via replica molding (RM) technique in a simple, robust and highly reproducible manner. The Pd-TMV complex structure was characterized by Transmission Electron Microscopy (TEM). The hybrid Pd-TMV-PEG microparticles are examined to have high catalytic activity, recyclability and stability through dichromate reduction. Combined these findings represent a significant step toward simple, robust, scalable synthesis and fabrication of efficient biotemplate-supported Pd nanocatalysts in readily deployable polymeric formats with high capacity in a well-controlled manner. These two simple, robust and readily controllable approaches for the fabrication of viral-templated Pd nanocatalysts, in both chip-based and hydrogel-encapsulated formats, can be readily extended to a variety of other nano-bio hybrid material synthesis in other catalytic reaction systems.

Yang, Cuixian

87

Superlattices of platinum and palladium nanoparticles  

Microsoft Academic Search

The authors have used a nonionic inverse micelle synthesis technique to form nanoclusters of platinum and palladium. These nanoclusters can be rendered hydrophobic or hydrophilic by the appropriate choice of capping ligand. Unlike Au nanoclusters, Pt nanoclusters show great stability with thiol ligands in aqueous media. Alkane thiols, with alkane chains ranging from Câ to Cââ were used as hydrophobic

JAMES E. MARTIN; JESS P. WILCOXON; JUDY G. ODINEK; PAULA P. PROVENCIO

2000-01-01

88

Palladium Catalyzed Aryl C with Unactivated, Aliphatic  

E-print Network

a chelation-assisted ortho acetic acid derivatives with unactiva good to excellent stereoselectivities­ benzene derivatives. Tuesday, Oct 21st 11:30 AM (Tea/Coffee at Seminar Hall, TCIS Colloquium Palladium acid derivatives with unactivated, aliphatic alkenes in good to excellent yields with high regio

Shyamasundar, R.K.

89

Nanoscaled palladium catalysts on activated carbon support  

Microsoft Academic Search

The application of nanosized palladium catalysts has gained growing importance over the last few years. Palladiumbased catalytic methods for fine organic synthesis permits the replacement of traditional labor-consuming techniques in multi-step organic syntheses and provides an improvement from the standpoint of cost and environmental impact. The use of activated carbon \\

I. Simakova; A. Koskin; I. Deliy; A. Simakov

2005-01-01

90

Atomic model of a palladium nanostructure  

Microsoft Academic Search

We report on the atomistic modelling and molecular dynamics simulation of several palladium nanostructures characterized by grains of various sizes. The atomistic modelling is based on the “simulated cluster condensation” technique, which allows the design of a nanostructure by the aggregation of atomic clusters of various sizes. The phase obtained upon thermal relaxation shows a density close to that resulting

M. Celino; G. D'Agostino; V. Rosato

1995-01-01

91

Anticancer drug FL118 is more than a survivin inhibitor: where is the Achilles’ heel of cancer?  

PubMed Central

Can a solution be found that overcomes all chemotherapy and/or radiation resistance resulting from different genetic and epigenetic alternations in various cancer types? The answer is likely NO. However, there are two ways that may be followed to approach this goal. One way is through the use of poly-therapies that target multiple mechanisms to kill cancer cells, which is the current state of the art. This approach raises issues of high costs and/or toxic limitations, since the toxicities of each agent are often additive. This poly-pharmacy approach has not proven to be a major success, although it has proven to be superior to most current mono-pharmacy approaches. The other way to approach the goal is to find a single anticancer drug that targets multiple different treatment resistant mechanisms. In this regard, a small chemical molecule (FL118) was recently discovered by serendipity during targeted discovery of anticancer drugs using the survivin gene as a target and biomarker. FL118 was found to not only inhibit multiple antiapoptotic proteins (survivin, XIAP, cIAP2) in the inhibitor of apoptosis (IAP) family, but to also inhibit the antiapoptotic protein Mcl-1 in the Bcl-2 family, while inducing the pro-apoptotic proteins Bax and Bim expression. Importantly, inhibition of these target genes and of tumor growth by FL118 is independent of p53 status (wild type, mutant or null), although mechanisms of action may be distinct among cells with different p53 status. Therefore, FL118 may effectively control cancer that loses functional p53, in which most DNA damage drugs (if not all) show a marked lack of efficiency. Recent studies further revealed that the superior anticancer activity of FL118 is highly dependent on its primary structure and steric configuration, suggesting that FL118 may be a promising drug platform for generating novel derivatives based on its core structure. Intriguingly, although FL118 has structural similarity to irinotecan and topotecan, two FDA-approved topoisomerase 1 (Top1) inhibitors for cancer treatment, cancer cells with Top1 mutations shows little contributions of treatment resistance to FL118 antitumor activity, while strikingly increasing irinotecan and topotecan resistance. Furthermore, both irinotecan and topotecan are the efflux pump ABCG2 substrates; cancer cells with high expression of ABCG2 showed strong irinotecan and topotecan resistance. In contrast, FL118 is not an ABCG2 substrate; ABCG2 overexpression in cancer cells does not show resistance to FL118 treatment. Current evidence suggests that future studies may unravel more unexpected mechanisms of action for this unique small molecule FL118. PMID:24959385

Li, Fengzhi

2014-01-01

92

Problem 118: Power Generation Matthew Grum  

E-print Network

Problem 118: Power Generation Matthew Grum Dept. Computer Science, The University of York July 2004 This problem concerns running power generators that are plugged into a grid. There are a number of generators of several types available. Each generator type has a minimum and maximum power output, a starup cost

St Andrews, University of

93

Assembly Bill No. 118 CHAPTER 750  

E-print Network

the Alternative and Renewable Fuel and Vehicle Technology Fund (Alternative Fund), and would require the Energy of State October 14, 2007.] legislative counsel's digest AB 118, Nunez. Alternative fuels and vehicle of vehicular air pollution. Under existing law, the State Energy Resources Conservation and Development

94

Process for recovery of palladium from nuclear fuel reprocessing wastes  

DOEpatents

Palladium is selectively removed from spent nuclear fuel reprocessing waste by adding sugar to a strong nitric acid solution of the waste to partially denitrate the solution and cause formation of an insoluble palladium compound. The process includes the steps of: (a) adjusting the nitric acid content of the starting solution to about 10 M, (b) adding 50% sucrose solution in an amount sufficient to effect the precipitation of the palladium compound, (c) heating the solution at reflux temperature until precipitation is complete, and (d) centrifuging the solution to separate the precipitated palladium compound from the supernatant liquid.

Campbell, David O. (Oak Ridge, TN); Buxton, Samuel R. (Wartburg, TN)

1981-01-01

95

Process for recovery of palladium from nuclear fuel reprocessing wastes  

DOEpatents

Palladium is selectively removed from spent nuclear fuel reprocessing waste by adding sugar to a strong nitric acid solution of the waste to partially denitrate the solution and cause formation of an insoluble palladium compound. The process includes the steps of: (a) adjusting the nitric acid content of the starting solution to about 10 M; (b) adding 50% sucrose solution in an amount sufficient to effect the precipitation of the palladium compound; (c) heating the solution at reflux temperature until precipitation is complete; and (d) centrifuging the solution to separate the precipitated palladium compound from the supernatant liquid.

Campbell, D.O.; Buxton, S.R.

1980-06-16

96

32 CFR 724.118 - Documentary discharge review.  

Code of Federal Regulations, 2010 CFR

... 2010-07-01 false Documentary discharge review. 724.118 Section 724...DEPARTMENT OF THE NAVY PERSONNEL NAVAL DISCHARGE REVIEW BOARD Definitions § 724.118 Documentary discharge review. A formal session of...

2010-07-01

97

21 CFR 118.4 - Salmonella Enteritidis (SE) prevention measures.  

Code of Federal Regulations, 2010 CFR

...Enteritidis (SE) prevention measures. 118.4 Section 118...ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED...Enteritidis (SE) prevention measures. You must follow the SE prevention measures set forth in this...

2010-04-01

98

46 CFR 118.410 - Fixed gas fire extinguishing systems.  

Code of Federal Regulations, 2014 CFR

...2014-10-01 2014-10-01 false Fixed gas fire extinguishing systems. 118.410 Section 118...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fixed Fire Extinguishing and Detecting Systems §...

2014-10-01

99

33 CFR 118.100 - Retroreflective panels on bridge piers.  

Code of Federal Regulations, 2011 CFR

...false Retroreflective panels on bridge piers. 118.100 Section 118.100 Navigation...100 Retroreflective panels on bridge piers. The District Commander may require... (a) To better identify a hazardous pier. (b) To provide a backup...

2011-07-01

100

33 CFR 118.100 - Retroreflective panels on bridge piers.  

Code of Federal Regulations, 2010 CFR

...false Retroreflective panels on bridge piers. 118.100 Section 118.100 Navigation...100 Retroreflective panels on bridge piers. The District Commander may require... (a) To better identify a hazardous pier. (b) To provide a backup...

2010-07-01

101

14 CFR 1214.118 - Special criteria for deployable payloads.  

Code of Federal Regulations, 2010 CFR

...1214.118 Section 1214.118 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION SPACE FLIGHT General Provisions Regarding Space Shuttle Flights of Payloads for Non-U.S. Government, Reimbursable Customers §...

2010-01-01

102

14 CFR 1214.118 - Special criteria for deployable payloads.  

Code of Federal Regulations, 2013 CFR

...1214.118 Section 1214.118 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION SPACE FLIGHT General Provisions Regarding Space Shuttle Flights of Payloads for Non-U.S. Government, Reimbursable Customers §...

2013-01-01

103

14 CFR 1214.118 - Special criteria for deployable payloads.  

Code of Federal Regulations, 2011 CFR

...1214.118 Section 1214.118 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION SPACE FLIGHT General Provisions Regarding Space Shuttle Flights of Payloads for Non-U.S. Government, Reimbursable Customers §...

2011-01-01

104

14 CFR 1214.118 - Special criteria for deployable payloads.  

Code of Federal Regulations, 2014 CFR

...1214.118 Section 1214.118 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION SPACE FLIGHT General Provisions Regarding Space Shuttle Flights of Payloads for Non-U.S. Government, Reimbursable Customers §...

2014-01-01

105

14 CFR 1214.118 - Special criteria for deployable payloads.  

Code of Federal Regulations, 2012 CFR

...1214.118 Section 1214.118 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION SPACE FLIGHT General Provisions Regarding Space Shuttle Flights of Payloads for Non-U.S. Government, Reimbursable Customers §...

2012-01-01

106

Palladium-catalyzed amination of aryl nonaflates.  

PubMed

The first detailed study of the palladium-catalyzed amination of aryl nonaflates is reported. Use of ligands 2-4 and 6 allows for the catalytic amination of electron-rich and -neutral aryl nonaflates with both primary and secondary amines. With use of Xantphos 5, the catalytic amination of a variety of functionalized aryl nonaflates resulted in excellent yields of anilines; even 2-carboxymethyl aryl nonaflate is effectively coupled with a primary alkylamine. Moderate yields were obtained when coupling halo-aryl nonaflates with a variety of amines, where in most cases the aryl nonaflate reacted in preference to the aryl halide. Overall, aryl nonaflates are an effective alternative to triflates in palladium-catalyzed C-N bond-forming processes due to their increased stability under the reaction conditions. PMID:14656080

Anderson, Kevin W; Mendez-Perez, Maria; Priego, Julian; Buchwald, Stephen L

2003-12-12

107

46 CFR 118.310 - Fire main and hydrants.  

Code of Federal Regulations, 2010 CFR

...Shipping 4 2010-10-01 2010-10-01 false Fire main and hydrants. 118.310 Section 118.310...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.310 Fire main and...

2010-10-01

108

46 CFR 118.320 - Fire hoses and nozzles.  

Code of Federal Regulations, 2013 CFR

...Shipping 4 2013-10-01 2013-10-01 false Fire hoses and nozzles. 118.320 Section 118.320...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.320 Fire hoses and...

2013-10-01

109

46 CFR 118.310 - Fire main and hydrants.  

Code of Federal Regulations, 2012 CFR

...Shipping 4 2012-10-01 2012-10-01 false Fire main and hydrants. 118.310 Section 118.310...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.310 Fire main and...

2012-10-01

110

46 CFR 118.320 - Fire hoses and nozzles.  

Code of Federal Regulations, 2012 CFR

...Shipping 4 2012-10-01 2012-10-01 false Fire hoses and nozzles. 118.320 Section 118.320...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.320 Fire hoses and...

2012-10-01

111

46 CFR 118.320 - Fire hoses and nozzles.  

Code of Federal Regulations, 2014 CFR

...Shipping 4 2014-10-01 2014-10-01 false Fire hoses and nozzles. 118.320 Section 118.320...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.320 Fire hoses and...

2014-10-01

112

46 CFR 118.310 - Fire main and hydrants.  

Code of Federal Regulations, 2011 CFR

...Shipping 4 2011-10-01 2011-10-01 false Fire main and hydrants. 118.310 Section 118.310...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.310 Fire main and...

2011-10-01

113

46 CFR 118.310 - Fire main and hydrants.  

Code of Federal Regulations, 2014 CFR

...Shipping 4 2014-10-01 2014-10-01 false Fire main and hydrants. 118.310 Section 118.310...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.310 Fire main and...

2014-10-01

114

46 CFR 118.310 - Fire main and hydrants.  

Code of Federal Regulations, 2013 CFR

...Shipping 4 2013-10-01 2013-10-01 false Fire main and hydrants. 118.310 Section 118.310...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.310 Fire main and...

2013-10-01

115

46 CFR 118.320 - Fire hoses and nozzles.  

Code of Federal Regulations, 2010 CFR

...Shipping 4 2010-10-01 2010-10-01 false Fire hoses and nozzles. 118.320 Section 118.320...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.320 Fire hoses and...

2010-10-01

116

46 CFR 118.320 - Fire hoses and nozzles.  

Code of Federal Regulations, 2011 CFR

...Shipping 4 2011-10-01 2011-10-01 false Fire hoses and nozzles. 118.320 Section 118.320...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fire Main System § 118.320 Fire hoses and...

2011-10-01

117

27 CFR 9.118 - Ben Lomond Mountain.  

Code of Federal Regulations, 2012 CFR

... 2012-04-01 false Ben Lomond Mountain. 9.118 Section 9.118 Alcohol...Viticultural Areas § 9.118 Ben Lomond Mountain. (a) Name. The name of the viticultural...described in this section is “Ben Lomond Mountain.” (b) Approved maps. The...

2012-04-01

118

27 CFR 9.118 - Ben Lomond Mountain.  

Code of Federal Regulations, 2010 CFR

... 2010-04-01 false Ben Lomond Mountain. 9.118 Section 9.118 Alcohol...Viticultural Areas § 9.118 Ben Lomond Mountain. (a) Name. The name of the viticultural...described in this section is “Ben Lomond Mountain.” (b) Approved maps. The...

2010-04-01

119

27 CFR 9.118 - Ben Lomond Mountain.  

Code of Federal Regulations, 2014 CFR

... 2014-04-01 false Ben Lomond Mountain. 9.118 Section 9.118 Alcohol...Viticultural Areas § 9.118 Ben Lomond Mountain. (a) Name. The name of the viticultural...described in this section is “Ben Lomond Mountain.” (b) Approved maps. The...

2014-04-01

120

27 CFR 9.118 - Ben Lomond Mountain.  

Code of Federal Regulations, 2013 CFR

... 2013-04-01 false Ben Lomond Mountain. 9.118 Section 9.118 Alcohol...Viticultural Areas § 9.118 Ben Lomond Mountain. (a) Name. The name of the viticultural...described in this section is “Ben Lomond Mountain.” (b) Approved maps. The...

2013-04-01

121

27 CFR 9.118 - Ben Lomond Mountain.  

Code of Federal Regulations, 2011 CFR

... 2011-04-01 false Ben Lomond Mountain. 9.118 Section 9.118 Alcohol...Viticultural Areas § 9.118 Ben Lomond Mountain. (a) Name. The name of the viticultural...described in this section is “Ben Lomond Mountain.” (b) Approved maps. The...

2011-04-01

122

33 CFR 118.15 - Penalty for interference or obstruction.  

Code of Federal Regulations, 2014 CFR

...1 2014-07-01 2014-07-01 false Penalty for interference or obstruction. 118.15 Section 118.15 Navigation...BRIDGE LIGHTING AND OTHER SIGNALS § 118.15 Penalty for interference or obstruction. Any person violating the...

2014-07-01

123

33 CFR 118.90 - Bridges crossing channel obliquely.  

Code of Federal Regulations, 2014 CFR

...2014-07-01 false Bridges crossing channel obliquely. 118.90 Section 118...SIGNALS § 118.90 Bridges crossing channel obliquely. Bridges crossing a body...angle other than 90° with the axis of the channel shall be lighted in accordance with...

2014-07-01

124

33 CFR 118.90 - Bridges crossing channel obliquely.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Bridges crossing channel obliquely. 118.90 Section 118...SIGNALS § 118.90 Bridges crossing channel obliquely. Bridges crossing a body...angle other than 90° with the axis of the channel shall be lighted in accordance with...

2011-07-01

125

Anomalous electrochemical behaviour of palladium in base  

Microsoft Academic Search

Noble metal hydrous oxides are known to be recalcitrant systems, i.e. they either undergo reduction at high overpotential\\u000a or fail to undergo this reaction, due to the intervention of high-energy, virtually isolated atom or nanocluster states of\\u000a the element as primary reduction products. Hydrogen absorption by activated palladium in base results in enhanced levels of\\u000a surface activation and eventually to

Lorraine C. Nagle; L. D. Burke

2010-01-01

126

Hydrogen permeation in palladium--chromium alloys  

Microsoft Academic Search

As part of a search for new palladium alloys with attractive permeation characteristics for hydrogen isotopes, alloys containing 9.3, 16.8, and 24.2 atom percent chromium were evaluated in the temperature range from 322 to 449 K. The permeation coefficient, diffusion coefficient, and hydrogen solubility were all found to decrease with increasing chromium content. The solubility was found to obey Sievert's

W. A. Swansiger; J. H. Swisher; J. P. Darginis; C. W. Schoenfelder

1976-01-01

127

SUPERCONDUCTIVITY OF DISORDERED PALLADIUM B. STRITZKER  

E-print Network

L-397 SUPERCONDUCTIVITY OF DISORDERED PALLADIUM B. STRITZKER Institut für Festkörperforschung, KFA températures avec des ions He+. Abstract. 2014 Superconductivity up to 3.2. K has been found in Pd films after not become superconducting above 0.08 K. Irradiation of these films with 130 keV He+ ions at 4.2 K leads

Paris-Sud XI, Université de

128

Does Hydrogen Pre-Melt Palladium Clusters?  

Microsoft Academic Search

We use molecular dynamics simulations to study the influence of an ambient atmosphere on the melting process in small palladium clusters, Pd_13, Pd_55 and Pd_147. The onset of the melting transition is monitored by both thermodynamical and structural observables. We find that heating by collisions with inert gas atoms or alternatively using a Nosé-Hoover thermostat both yield very similar melting

Henrik Grönbeck; Arne Rosén; David Tománek; Seonggon Kim

1996-01-01

129

Does hydrogen pre-melt palladium clusters?  

Microsoft Academic Search

We use molecular dynamics simulations to study the influence of an ambient atmosphere on the melting process in the icosahedral palladium clusters Pd13, Pd55 and Pd147. Novel methods to capture the character of melting in finite systems are presented. The signature of melting in clusters heated by inert carrier gas collisions closely resembles that in systems heated in a Nosé-Hoover

H. Gronbeck; D. Tománek; S. G. Kim; A. Rosén

1997-01-01

130

Heterogeneous palladium catalysis of nitrogen oxides  

SciTech Connect

Increasingly stringent environmental legislation has led to the development of new technologies for the reduction of nitrogen oxide (NO{sub x}) emissions. Approximately 50% of anthropogenic NO{sub x} produced in the continental U.S. comes from stationary sources such as power plants, industrial boilers and process heaters. We are investigating heterogeneous catalysts that contain palladium and which catalyze the removal of NO in aqueous basic solutions. Initial research has produced a turnover rate for palladium catalysts at 80{degrees}C that compares favorably to the rates of copper doped zeolite catalysts at 300-700{degrees}C. The palladium catalysts under investigation are capable of simultaneously removing NO{sub 2} and SO{sub x} along with the NO. The following reaction stoichiometry has been determined: 4NO + 2OH{sup -} {implies} N{sub 2}O + 2NO{sub 2}{sup -} + H{sub 2}O. The role of the catalyst in promoting the overall reaction scheme will be discussed.

Berseth, P.A.; MacNeil, J.H.; Trogler, W.C. [Univ. of California, La Jolla, CA (United States)

1996-10-01

131

Mechanical Properties of Palladium with Defects and Impurities: a Molecular Dynamics Study  

Microsoft Academic Search

Stress strain relations and failure strengths are determined for pure palladium, palladium with various sized helium bubbles, and palladium with hydrogen loading. The embedded atom method is used to model the potential in Parrinello-Rahman HtN molecular dynamics. The bubbles were found to be stable entities up to the point of failure. The failure strengths of the palladium crystals were lowered

Thomas Vincent Graham

1994-01-01

132

Fabrication and ammonia gas sensing of palladium\\/polypyrrole nanocomposite  

Microsoft Academic Search

A nanocomposite of polypyrrole (Ppy) and palladium was fabricated by a facile method involving thermal dynamic refluxing of palladium salt and encapsulation of Pd nanoclusters with Ppy by vapor phase polymerization. The composite film was characterized using transmission electron microscopy and atomic force microscopy. It was found that the morphologies of the composite film were heavily affected by concentration and

Lijie Hong; Yang Li; Mujie Yang

2010-01-01

133

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

126 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,000 Palladium 78,900 92,500 124,000 146,000 95,000 Rhodium 7,210 7,820 9,600 9,650 7,000 Ruthenium 4,490 9,880 7

134

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

128 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,000 Palladium 92,500 124,000 146,000 148,000 151,000 Rhodium 7,820 9,600 9,650 14,400 8,600 Ruthenium 9,880 7

135

Molecular dynamics study of the mechanical properties of palladium nanocontacts  

Microsoft Academic Search

The mechanical properties of extended palladium nanocontacts have been investigated by the molecular dynamics method. The\\u000a characteristic interatomic distances in the contacts have been determined and the process of the formation of palladium atomic\\u000a contacts undergoing breaking has been studied for the (100), (110), and (111) orientations of the contact-surface interfaces.

A. L. Klavsyuk; S. V. Kolesnikov; E. M. Smelova; A. M. Saletsky

2010-01-01

136

Molecular dynamics study of the mechanical properties of palladium nanocontacts  

Microsoft Academic Search

The mechanical properties of extended palladium nanocontacts have been investigated by the molecular dynamics method. The characteristic interatomic distances in the contacts have been determined and the process of the formation of palladium atomic contacts undergoing breaking has been studied for the (100), (110), and (111) orientations of the contact-surface interfaces.

A. L. Klavsyuk; S. V. Kolesnikov; E. M. Smelova; A. M. Saletsky

2010-01-01

137

New supported palladium-chromium catalysts: characterization and catalytic properties  

SciTech Connect

New silica-supported Pd-Cr catalysts have been prepared either by using mixed inorganic salts of the two metals as precursors or through the deposition of Cr(CO){sub 6} on a monometallic palladium catalyst. Analytic electron microscopy shows that palladium-enriched particles are formed. The EXAFS experiments show that when the reduction temperature reaches 870 K, part of the chromium is reduced and interacts with palladium. In the partial hydrogenation of 1,3-butadiene, these catalysts are less active but 100% selective for the formation of butenes. The explanation, proposed on the basis of hydrogen chemisorption and confirmed by XPS data, is a modification of the electronic structure of palladium, leading to a variation of the adsorption coefficients of the diene and alkenes, compared to the values measured on monometallic palladium catalysts.

Borgna, A.; Moraweck, B.; Massardier, J.; Renouprez, A.J. (Institut de Recherches sur la Catalyse, Villeurbanne (France))

1991-03-01

138

CONTENT OF PLATINUM AND PALLADIUM IN RAT TISSUE: CORRELATION OF TISSUE CONCENTRATION OF PLATINUM AND PALLADIUM WITH BIOCHEMICAL EFFECTS  

EPA Science Inventory

Platinum and palladium are used as the active components in the catalytic converters of air pollution control devices of motor vehicles. The use of these metals is accompanied by the potential loss of platinum and palladium into the environment. This laboratory has been involved ...

139

Impact of palladium to the interfacial behavior of palladium coated copper wire on aluminium pad metallization during high temperature storage  

Microsoft Academic Search

Reliability of palladium coated copper wire is believed to have enhancement over bare copper wire. With current understanding, the main failure mode in copper wire bonding is galvanic corrosion of the less stable Cu9Al4 intermetallic compound (IMC) phase in the highly accelerated stress test (HAST). In gold wire bonding, palladium (Pd) is known to retard formation of the corrosive prone

Dominik Stephan; Effie Chew; Johnny Yeung; Eugen Milke

2011-01-01

140

Properties of palladium doped tin oxide thin films for gas sensors grown by PLD method combined with sputtering process  

Microsoft Academic Search

The gas sensors based on tin dioxide (SnO2) thin films and doped with different amount of palladium (Pd) were synthesized by a new developed preparation system using the pulsed Nd:YAG (532 nm) laser deposition method combined with d.c. sputtering. The Pd-doped SnO2 (SnO2–Pd) thin films have been grown on Si (100) and alumina (Al2O3) substrates using SnO2 targets. The composition

Yoshiaki Suda; Hiroharu Kawasaki; Jun Namba; Keitarou Iwatsuji; Kazuya Doi; Kenji Wada

2003-01-01

141

Direct Observation of Paramagnons in Palladium  

SciTech Connect

We report an inelastic neutron scattering study of the spin fluctuations in the nearly ferromagnetic element palladium. Dispersive over-damped collective magnetic excitations or 'paramagnons' are observed up to 128 meV. We analyze our results in terms of a Moriya-Lonzarich-type spin-fluctuation model and estimate the contribution of the spin fluctuations to the low-temperature heat capacity. In spite of the paramagnon excitations being relatively strong, their relaxation rates are large. This leads to a small contribution to the low-temperature electronic specific heat.

Doubble, R. [University of Bristol, UK; Hayden, S M. [University of Bristol, UK; Dai, Pengcheng [University of Tennessee, Knoxville (UTK); Mook Jr, Herbert A [ORNL; Thompson, James R [ORNL; Frost, C. [ISIS Facility, Rutherford Appleton Laboratory

2010-01-01

142

Scalable synthesis of nanoporous palladium powders.  

SciTech Connect

Nanoporous palladium powders are synthesized on milligram to gram scales by chemical reduction of tetrachloro complexes by ascorbate in a concentrated aqueous surfactant at temperatures between -20 and 30 C. Particle diameters are approximately 50 nm, and each particle is perforated by 3 nm pores, as determined by electron tomography. These materials are of potential value for storage of hydrogen isotopes and electrical charge; producing them at large scales in a safe and efficient manner will help realize this. A slightly modified procedure also results in nanoporous platinum.

Robinson, David B.; Tran, Kim L.; Clift, W. Miles; Arslan Ilke; Langham, Mary Elizabeth; Ong, Markus D.; Fares, Stephen James

2009-03-01

143

Palladium-defect complexes in diamond and silicon carbide  

NASA Astrophysics Data System (ADS)

Time Differential Perturbed Angular Correlations (TDPAC) studies, supported by Density Functional Theory (DFT) modelling, have shown that palladium atoms in silicon and germanium pair with vacancies. Building on these results, here we present DFT predictions and some tentative TDPAC results on palladium-defect complexes and site locations of palladium impurities in diamond and silicon carbide. For both diamond and silicon carbide, the DFT calculations predict that a split-vacancy V-PdBI-V complex is favoured, with the palladium atom on a bond-centred interstitial site having a nearest-neighbour semi-vacancy on either side. Consistent with experimental results, this configuration is also assigned to palladium complexes in silicon and germanium. For silicon carbide, the DFT modelling predicts furthermore that a palladium atom in replacing a carbon atom moves to a bond-centred interstitial site and pairs with a silicon vacancy to form a complex that is more stable than that of a palladium atom which replaces a silicon atom and then moves to a bond-centred interstitial site pairings with a carbon vacancy. These two competing alternatives differ by 8.94 eV. The favourable pairing with a silicon vacancy is also supported independently by TRIM Monte Carlo calculations, which predict that more silicon vacancies than carbon vacancies are created during heavy ion. implantation.

Abiona, A. A.; Kemp, W.; Timmers, H.; Bharuth-Ram, K.

2014-12-01

144

PVP Protective mechanism of palladium nanoparticles obtained by sonochemical process  

NASA Astrophysics Data System (ADS)

The protective effect of polyvinylpyrrolidone (PVP) on the palladium nanoparticles has been investigated using Fourier Transform Infrared Spectroscopy (FT-IR). Palladium nanoparticles have been obtained by ultrasonic irradiation of Pd(NO3)2 solution in presence of ethylene glycol (EG) and PVP. The sonochemical reduction process of palladium ions (Pd(II)) to palladium atoms (Pd(0)) can be explained by considering the intense ultrasonic waves that are strong enough to produce cavitation: formation, growth and collapse of bubbles. The UV-Visible absorption spectroscopy revealed that the reduction of Pd (II) to metallic Pd has been successfully achieved. The FT-IR spectroscopy spectra analysis show that, in presence of ethylene glycol, the stabilization of the nanoparticles results from the adsorption of the PVP chain on the palladium particle surface via the coordination of the PVP carbonyl group to the palladium atoms. The transmission electron microscopy (HRTEM) and electrondispersive X-ray (EDX) results confirm the dispersion, the nanometric size and the composition of the obtained palladium particles.

Nemamcha, A.; Moumeni, H.; Rehspringer, J. L.

2009-11-01

145

A Novel Small Molecule FL118 That Selectively Inhibits Survivin, Mcl-1, XIAP and cIAP2 in a p53-Independent Manner, Shows Superior Antitumor Activity  

PubMed Central

Drug/radiation resistance to treatment and tumor relapse are major obstacles in identifying a cure for cancer. Development of novel agents that address these challenges would therefore be of the upmost importance in the fight against cancer. In this regard, studies show that the antiapoptotic protein survivin is a central molecule involved in both hurdles. Using cancer cell-based survivin-reporter systems (US 7,569,221 B2) via high throughput screening (HTS) of compound libraries, followed by in vitro and in vivo analyses of HTS-derived hit-lead compounds, we identified a novel anticancer compound (designated FL118). FL118 shows structural similarity to irinotecan. However, while the inhibition of DNA topoisomerase 1 activity by FL118 was no better than the active form of irinotecan, SN-38 at 1 µM, FL118 effectively inhibited cancer cell growth at less than nM levels in a p53 status-independent manner. Moreover, FL118 selectively inhibited survivin promoter activity and gene expression also in a p53 status-independent manner. Although the survivin promoter-reporter system was used for the identification of FL118, our studies revealed that FL118 not only inhibits survivin expression but also selectively and independently inhibits three additional cancer-associated survival genes (Mcl-1, XIAP and cIAP2) in a p53 status-independent manner, while showing no inhibitory effects on control genes. Genetic silencing or overexpression of FL118 targets demonstrated a role for these targets in FL118’s effects. Follow-up in vivo studies revealed that FL118 exhibits superior antitumor efficacy in human tumor xenograft models in comparison with irinotecan, topotecan, doxorubicin, 5-FU, gemcitabine, docetaxel, oxaliplatin, cytoxan and cisplatin, and a majority of mice treated with FL118 showed tumor regression with a weekly × 4 schedule. FL118 induced favorable body-weight-loss profiles (temporary and reversible) and was able to eliminate large tumors. Together, the molecular targeting features of FL118 plus its superior antitumor activity warrant its further development toward clinical trials. PMID:23029106

Cheng, Qiuying; Keefe, James T.; Rustum, Youcef M.; Li, Fengzhi

2012-01-01

146

7 CFR 1221.118 - Refund escrow accounts.  

Code of Federal Regulations, 2012 CFR

...ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SORGHUM PROMOTION, RESEARCH, AND INFORMATION ORDER Sorghum Promotion, Research, and Information Order Sorghum Promotion, Research, and Information Board § 1221.118...

2012-01-01

147

7 CFR 1221.118 - Refund escrow accounts.  

Code of Federal Regulations, 2010 CFR

...ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SORGHUM PROMOTION, RESEARCH, AND INFORMATION ORDER Sorghum Promotion, Research, and Information Order Sorghum Promotion, Research, and Information Board § 1221.118...

2010-01-01

148

7 CFR 1221.118 - Refund escrow accounts.  

Code of Federal Regulations, 2013 CFR

...ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SORGHUM PROMOTION, RESEARCH, AND INFORMATION ORDER Sorghum Promotion, Research, and Information Order Sorghum Promotion, Research, and Information Board § 1221.118...

2013-01-01

149

7 CFR 1221.118 - Refund escrow accounts.  

Code of Federal Regulations, 2011 CFR

...ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SORGHUM PROMOTION, RESEARCH, AND INFORMATION ORDER Sorghum Promotion, Research, and Information Order Sorghum Promotion, Research, and Information Board § 1221.118...

2011-01-01

150

7 CFR 1221.118 - Refund escrow accounts.  

Code of Federal Regulations, 2014 CFR

...ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SORGHUM PROMOTION, RESEARCH, AND INFORMATION ORDER Sorghum Promotion, Research, and Information Order Sorghum Promotion, Research, and Information Board § 1221.118...

2014-01-01

151

Local atomic structures of palladium nanowire.  

PubMed

In this paper, investigation of the structure of palladium nanowire has been performed by using genetic algorithm simulation based on the molecular dynamics. Our calculation employs a well-fitted, tight-binding many-body potential for Pd atoms. Some local atomic structures and defects in nanowires have been reported. The melting behavior of palladium nanowire has also been investigated. An interesting result is that the diffusion of the central atoms results in the beginning of the melting. The moving central atoms build up a monostrand atomic chain during the melting process. The single atomic chain is very stable which can exist in a wide temperature region (800-950 K). The formation of the single atomic chain causes some new defects in the nanowire. And the new defects result in the decrease of the thermal stability of the nanowire. Interestingly, the liquid from the nanowire melting has a supercooled feature because the splitting of the second peak of pair correlation function is observed. The curves of the internal energy and the local cluster are used to monitor the phase transition. The melting of the nanowire is not only due to the single atomic diffusion, but also the diffusion of the local clusters. PMID:15527365

Hui, Li; Wang, B L; Wang, J L; Wang, G H

2004-11-01

152

Synthesis of silicon oxide nanowires and nanotubes with cobalt-palladium or palladium catalysts  

NASA Astrophysics Data System (ADS)

The dewetting behaviors of cobalt (Co), cobalt palladium (CoPd), and palladium (Pd) thin films on oxidized silicon substrates were examined. We observed the formation of craters in the oxide layer and pits in the Si substrate for larger CoPd or Pd catalyst particles and thinner oxide. Nanowires and nanotubes were observed near the Si pits. The nanowires and nanotubes grow via a vapor-solid-solid or vapor-liquid-solid mechanism with the silicon vapor source provided from the substrate. The original Si atoms that form the nanowires or nanotubes were oxidized in situ by the residual oxygen atoms present in the chamber. Some of the nanotubes had a series of embedded sub-catalysts that formed branches from the primary nanotube.

Esterina, Ria; Liu, X. M.; Ross, C. A.; Adeyeye, A. O.; Choi, W. K.

2012-07-01

153

Molecular Dynamics Simulation of Hydrogen Absorbing Palladium: Turnover of Hydrogen Absorption Heat into Palladium  

Microsoft Academic Search

Molecular dynamics simulations were carried out for hydrogen absorption by palladium in various atomic ratios to identify the reason why hydrogen absorption heat changes from exothermic to endothermic at a high atomic ratio. Classical two-body interactions were used as interatomic potentials for these simulations in order to simplify the calculation. Pd-Pd and Pd-H interatomic potentials were determined empirically by fitting

Daigo Fukushi; Sotoji Hiragi; Takuya Honda

2000-01-01

154

Leaching kinetics of platinum and palladium from spent automotive catalysts  

SciTech Connect

Empirical rate expressions for both platinum and palladium were obtained from mass balances and concentration-time data in a packed bed reactor using different (HCl):(HNO3) leaching solution concentration ratios. The spent catalysts used in this study (-60 + 70 mesh to -120 + 140 mesh) were analyzed to be 3791 ppm platinum and 1306 ppm palladium. High initial rates for both platinum and palladium were obtained for the early stages of leaching and were followed by rapid decay up to about 110 minutes and 50 minutes respectively. Typical concentrations in the leached solution were about 40 ppm Pt and 20 ppm Pd after about 5 hours for the experimental conditions used. The extent of reaction for platinum was in the 90 percent range while that of the palladium was in the 70 percent range.

Tyson, D.R.; Bautista, R.G.

1987-01-01

155

Palladium-based electrocatalysts and fuel cells employing such electrocatalysts  

DOEpatents

A direct organic fuel cell includes a fluid fuel comprising formic acid, an anode having an electrocatalyst comprising palladium nanoparticles, a fluid oxidant, a cathode electrically connected to the anode, and an electrolyte interposed between the anode and the cathode.

Masel; Richard I. (Champaign, IL), Zhu; Yimin (Urbana, IL), Larsen; Robert T. (Champaign, IL)

2010-08-31

156

Catalytic H2O2 decomposition on palladium surfaces  

E-print Network

to pretrial the palladium surfaces. The rate of decomposition was found to be dependent upon the coverage and identity of the halogen adsorbate. Experimental measurements were based upon Auger electron spectroscopy (AES), low-energy electron Diffraction (LEED...

Salinas, S. Adriana

1998-01-01

157

New palladium nanoclusters. Synthesis, structure, and catalytic properties  

Microsoft Academic Search

The reduction of palladium(ii) carboxylates Pd3(OCOR)6 (R = Me, Et, CHMe2, CMe3) with hydrogen in alcohol solutions containing 1,10-phenanthroline (phen) and subsequent oxidation with oxygen gave new palladium nanoclusters, mainly particles with a nearly spherical metal core and an average size of 18 Å. Based on elemental analysis, NMR, X-ray photoelectron spectroscopy, and EXAFS, nanoclusters were described by the idealized

I. P. Stolyarov; Yu. V. Gaugash; G. N. Kryukova; D. I. Kochubei; M. N. Vargaftik; I. I. Moiseev

2004-01-01

158

Palladium supported catalysts for the selective hydrogenation of sunflower oil  

Microsoft Academic Search

Selective hydrogenation of ethyl esters of traditional sunflower oil (SOEE) was carried out at low temperature (40°C) in ethanol as solvent in the presence of supported palladium catalysts. In the range of studied dispersions (12–55%), the SOEE hydrogenation reaction is insensitive to the size of the palladium particles deposited on silica, but the largest metallic particles enhance the C18:1 cis–trans

Bendaoud Nohair; Catherine Especel; Gwendoline Lafaye; Patrice Marécot; Lê Chiên Hoang; Jacques Barbier

2005-01-01

159

Method of forming supported doped palladium containing oxidation catalysts  

DOEpatents

A method of forming a supported oxidation catalyst includes providing a support comprising a metal oxide or a metal salt, and depositing first palladium compound particles and second precious metal group (PMG) metal particles on the support while in a liquid phase including at least one solvent to form mixed metal comprising particles on the support. The PMG metal is not palladium. The mixed metal particles on the support are separated from the liquid phase to provide the supported oxidation catalyst.

Mohajeri, Nahid

2014-04-22

160

Hydrogen segregation and lattice reorientation in palladium hydride nanowires  

NASA Astrophysics Data System (ADS)

We study palladium hydride nanowires of different sizes and hydrogen concentrations at 300 K using molecular dynamic simulations. Strong surface segregation of hydrogen with a depletion zone behind is observed in the palladium hydride nanowires. We also show that lattice reorientation is controlled by the hydrogen concentration as well as the nanowire size. The interplay of surface stresses and hydrogen induced stresses is responsible for the observations.

He, J. H.; Knies, D. L.; Hubler, G. K.; Grabowski, K. S.; Tonucci, R. J.; Dechiaro, L. F.

2012-10-01

161

Synthesis and characterization of nitrides of iridium and palladiums  

SciTech Connect

We describe the synthesis of nitrides of iridium and palladium using the laser-heated diamond anvil cell. We have used the in situ techniques of x-ray powder diffraction and Raman scattering to characterize these compounds and have compared our experimental findings where possible to the results of first-principles theoretical calculations. We suggest that palladium nitride is isostructural with pyrite, while iridium nitride has a monoclinic symmetry and is isostructural with baddeleyite.

Crowhurst, Jonathan C.; Goncharov, Alexander F.; Sadigh, B.; Zaug, J.M.; Aberg, D.; Meng, Yue; Prakapenka, Vitali B. (LLNL); (CIW); (UC)

2008-08-14

162

Palladium and platinum binding on an imidazol containing resin  

Microsoft Academic Search

Platinum and palladium were efficiently recovered from HCl solutions (at concentrations as high as 1–2 M) using a vinylbenzyl chloride-divinylbenzene resin reacted with the sodium salt of diethylmalonate followed by reaction with 3-aminopropyl imidazol. Both palladium and platinum exhibit sorption capacities as high as 1 mmol metal g?1 in 2 M HCl solutions (1.4–1.5 mmol metal g?1 in 1 M HCl and 1.6–1.7 mmol metal g?1

Aurély Parodi; Thierry Vincent; Magdalena Pilsniak; Andrzej W. Trochimczuk; Eric Guibal

2008-01-01

163

Synthesis of superheavy nuclei with Z =118 in hot fusion reactions  

NASA Astrophysics Data System (ADS)

The evaporation residue (ER) cross sections for producing superheavy nuclei with charge number 118 in some 48Ca-induced reactions are studied theoretically with the dinuclear system model with dynamical potential energy surface (DNS-DyPES model) for the experiment, which is aimed to produce the isotopes of element Z =118. The experiment is under way at the Flerov Laboratory of the Joint Institute for Nuclear Research in Dubna, Russia. The calculated ER cross sections for 48Ca + 249Cf are found to be in good agreement with the experimental results. The excitation functions for 48Ca + 250,251,252Cf are calculated and predicted, and the dependence of the residue cross sections for producing 293,294,295,296,297118 on the bombarding energies is also calculated for an isotopic composition of the Cf target. The possibilities for producing element 118 with other projectile-target combinations such as 50Ti + 248Cm and 54Cr + 244Pu at different mass asymmetries of entrance channels are also investigated.

Wang, Nan; Zhao, En-Guang; Scheid, Werner

2014-03-01

164

30 CFR 250.118 - Will MMS approve gas injection?  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Will MMS approve gas injection? 250.118 Section 250...DEPARTMENT OF THE INTERIOR OFFSHORE OIL AND GAS AND SULPHUR OPERATIONS IN THE OUTER...Standards § 250.118 Will MMS approve gas injection? The Regional...

2010-07-01

165

37 CFR 11.8 - Oath and registration fee.  

Code of Federal Regulations, 2011 CFR

37 Patents, Trademarks, and Copyrights 1 2011-07-01 2011-07-01...Section 11.8 Patents, Trademarks, and Copyrights UNITED STATES PATENT AND TRADEMARK...Trademarks, and Other Non-Patent Law § 11.8 Oath and registration...

2011-07-01

166

Aquatic Toxicology Volume 109, March 2012, Pages 118-126  

E-print Network

Aquatic Toxicology Volume 109, March 2012, Pages 118-126 doi:10.1016/j.aquatox.2011.12.006 Received.neyra@irstea.fr hal-00674582,version1-27Feb2012 Author manuscript, published in "Aquatic Toxicology 109 (2012) p. 118

Paris-Sud XI, Université de

167

46 CFR 171.118 - Automatic ventilators and side ports.  

Code of Federal Regulations, 2014 CFR

...2014-10-01 2014-10-01 false Automatic ventilators and side ports. 171.118 Section...Weather Deck § 171.118 Automatic ventilators and side ports. (a) An automatic ventilator must not be fitted in the side of...

2014-10-01

168

46 CFR 171.118 - Automatic ventilators and side ports.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Automatic ventilators and side ports. 171.118 Section...Weather Deck § 171.118 Automatic ventilators and side ports. (a) An automatic ventilator must not be fitted in the side of...

2011-10-01

169

46 CFR 171.118 - Automatic ventilators and side ports.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Automatic ventilators and side ports. 171.118 Section...Weather Deck § 171.118 Automatic ventilators and side ports. (a) An automatic ventilator must not be fitted in the side of...

2010-10-01

170

46 CFR 171.118 - Automatic ventilators and side ports.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Automatic ventilators and side ports. 171.118 Section...Weather Deck § 171.118 Automatic ventilators and side ports. (a) An automatic ventilator must not be fitted in the side of...

2012-10-01

171

46 CFR 171.118 - Automatic ventilators and side ports.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Automatic ventilators and side ports. 171.118 Section...Weather Deck § 171.118 Automatic ventilators and side ports. (a) An automatic ventilator must not be fitted in the side of...

2013-10-01

172

40 CFR 51.118 - Stack height provisions.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Stack height provisions. 51.118 Section 51... Control Strategy § 51.118 Stack height provisions. (a) The plan must...affected by so much of any source's stack height that exceeds good engineering...

2010-07-01

173

33 CFR 118.120 - Radar reflectors and racons.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Radar reflectors and racons. 118.120 Section...LIGHTING AND OTHER SIGNALS § 118.120 Radar reflectors and racons. The District...require or authorize the installation of radar reflectors and racons on bridge...

2010-07-01

174

33 CFR 118.120 - Radar reflectors and racons.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Radar reflectors and racons. 118.120 Section...LIGHTING AND OTHER SIGNALS § 118.120 Radar reflectors and racons. The District...require or authorize the installation of radar reflectors and racons on bridge...

2013-07-01

175

33 CFR 118.120 - Radar reflectors and racons.  

Code of Federal Regulations, 2014 CFR

...2014-07-01 2014-07-01 false Radar reflectors and racons. 118.120 Section...LIGHTING AND OTHER SIGNALS § 118.120 Radar reflectors and racons. The District...require or authorize the installation of radar reflectors and racons on bridge...

2014-07-01

176

33 CFR 118.120 - Radar reflectors and racons.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 2012-07-01 false Radar reflectors and racons. 118.120 Section...LIGHTING AND OTHER SIGNALS § 118.120 Radar reflectors and racons. The District...require or authorize the installation of radar reflectors and racons on bridge...

2012-07-01

177

33 CFR 118.120 - Radar reflectors and racons.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false Radar reflectors and racons. 118.120 Section...LIGHTING AND OTHER SIGNALS § 118.120 Radar reflectors and racons. The District...require or authorize the installation of radar reflectors and racons on bridge...

2011-07-01

178

The ITEA-NASA STS-118 Design Challenges  

ERIC Educational Resources Information Center

In conjunction with the August 8, 2007 launch of STS-118, the International Technology Education Association (ITEA) and National Aeronautics and Space Administration (NASA) developed and recently debuted curricular units for Grades K-12 on Space Exploration, known as STS-118 Design Challenges. The units focus on aspects of the themes that NASA…

Meade, Shelli D.; Caron, Daniel W.; Gray, Aaron; Weaver, Kim

2008-01-01

179

33 CFR 118.65 - Lights on fixed bridges.  

Code of Federal Regulations, 2014 CFR

...2014-07-01 2014-07-01 false Lights on fixed bridges. 118.65 Section...LIGHTING AND OTHER SIGNALS § 118.65 Lights on fixed bridges. (a) Each fixed...will be marked by a range of two green lights, and each margin of each navigable...

2014-07-01

180

33 CFR 118.85 - Lights on vertical lift bridges.  

Code of Federal Regulations, 2014 CFR

...2014-07-01 2014-07-01 false Lights on vertical lift bridges. 118.85 Section...LIGHTING AND OTHER SIGNALS § 118.85 Lights on vertical lift bridges. (a) Lift span lights. The vertical lift span of every...

2014-07-01

181

40 CFR 51.118 - Stack height provisions.  

Code of Federal Regulations, 2014 CFR

...2014-07-01 2014-07-01 false Stack height provisions. 51.118 Section 51... Control Strategy § 51.118 Stack height provisions. (a) The plan must...affected by so much of any source's stack height that exceeds good engineering...

2014-07-01

182

40 CFR 51.118 - Stack height provisions.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false Stack height provisions. 51.118 Section 51... Control Strategy § 51.118 Stack height provisions. (a) The plan must...affected by so much of any source's stack height that exceeds good engineering...

2011-07-01

183

40 CFR 51.118 - Stack height provisions.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Stack height provisions. 51.118 Section 51... Control Strategy § 51.118 Stack height provisions. (a) The plan must...affected by so much of any source's stack height that exceeds good engineering...

2013-07-01

184

40 CFR 51.118 - Stack height provisions.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 2012-07-01 false Stack height provisions. 51.118 Section 51... Control Strategy § 51.118 Stack height provisions. (a) The plan must...affected by so much of any source's stack height that exceeds good engineering...

2012-07-01

185

Electrocatalysts having platium monolayers on palladium, palladium alloy, and gold alloy core-shell nanoparticles, and uses thereof  

DOEpatents

The invention relates to platinum-coated particles useful as fuel cell electrocatalysts. The particles are composed of a noble metal or metal alloy core at least partially encapsulated by an atomically thin surface layer of platinum atoms. The invention particularly relates to such particles having a palladium, palladium alloy, gold alloy, or rhenium alloy core encapsulated by an atomic monolayer of platinum. In other embodiments, the invention relates to fuel cells containing these electrocatalysts and methods for generating electrical energy therefrom.

Adzic, Radoslav (Setauket, NY); Mo, Yibo (Naperville, IL); Vukmirovic, Miomir (Port Jefferson Station, NY); Zhang, Junliang (Rochester, NY)

2010-12-21

186

41 CFR 102-118.170 - Will GSA continue to maintain a centralized numbering system for Government transportation...  

Code of Federal Regulations, 2014 CFR

...centralized numbering system for Government transportation documents? 102-118.170 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2014-01-01

187

21 CFR 118.8 - Testing methodology for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2014 CFR

...Drugs 2 2014-04-01 2014-04-01 false Testing methodology for Salmonella Enteritidis (SE). 118.8 Section 118...STORAGE, AND TRANSPORTATION OF SHELL EGGS § 118.8 Testing methodology for Salmonella Enteritidis (SE). (a) Testing of...

2014-04-01

188

21 CFR 118.7 - Sampling methodology for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2013 CFR

... 2 2013-04-01 2013-04-01 false Sampling methodology for Salmonella Enteritidis (SE). 118.7 Section 118...AND TRANSPORTATION OF SHELL EGGS § 118.7 Sampling methodology for Salmonella Enteritidis (SE). (a)...

2013-04-01

189

21 CFR 118.8 - Testing methodology for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2013 CFR

...Drugs 2 2013-04-01 2013-04-01 false Testing methodology for Salmonella Enteritidis (SE). 118.8 Section 118...STORAGE, AND TRANSPORTATION OF SHELL EGGS § 118.8 Testing methodology for Salmonella Enteritidis (SE). (a) Testing of...

2013-04-01

190

21 CFR 118.8 - Testing methodology for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2011 CFR

...Drugs 2 2011-04-01 2011-04-01 false Testing methodology for Salmonella Enteritidis (SE). 118.8 Section 118...STORAGE, AND TRANSPORTATION OF SHELL EGGS § 118.8 Testing methodology for Salmonella Enteritidis (SE). (a) Testing of...

2011-04-01

191

21 CFR 118.7 - Sampling methodology for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2014 CFR

... 2 2014-04-01 2014-04-01 false Sampling methodology for Salmonella Enteritidis (SE). 118.7 Section 118...AND TRANSPORTATION OF SHELL EGGS § 118.7 Sampling methodology for Salmonella Enteritidis (SE). (a)...

2014-04-01

192

21 CFR 118.7 - Sampling methodology for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2010 CFR

... 2 2010-04-01 2010-04-01 false Sampling methodology for Salmonella Enteritidis (SE). 118.7 Section 118...AND TRANSPORTATION OF SHELL EGGS § 118.7 Sampling methodology for Salmonella Enteritidis (SE). (a)...

2010-04-01

193

21 CFR 118.7 - Sampling methodology for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2011 CFR

... 2 2011-04-01 2011-04-01 false Sampling methodology for Salmonella Enteritidis (SE). 118.7 Section 118...AND TRANSPORTATION OF SHELL EGGS § 118.7 Sampling methodology for Salmonella Enteritidis (SE). (a)...

2011-04-01

194

21 CFR 118.8 - Testing methodology for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2012 CFR

...Drugs 2 2012-04-01 2012-04-01 false Testing methodology for Salmonella Enteritidis (SE). 118.8 Section 118...STORAGE, AND TRANSPORTATION OF SHELL EGGS § 118.8 Testing methodology for Salmonella Enteritidis (SE). (a) Testing of...

2012-04-01

195

21 CFR 118.7 - Sampling methodology for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2012 CFR

... 2 2012-04-01 2012-04-01 false Sampling methodology for Salmonella Enteritidis (SE). 118.7 Section 118...AND TRANSPORTATION OF SHELL EGGS § 118.7 Sampling methodology for Salmonella Enteritidis (SE). (a)...

2012-04-01

196

7 CFR 1c.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 1c.118 Section 1c.118...Secretary of Agriculture PROTECTION OF HUMAN SUBJECTS § 1c.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2013-01-01

197

28 CFR 46.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 46.118 Section 46.118...OF JUSTICE (CONTINUED) PROTECTION OF HUMAN SUBJECTS § 46.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2013-07-01

198

15 CFR 27.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...lacking definite plans for involvement of human subjects. 27.118 Section 27.118...the Secretary of Commerce PROTECTION OF HUMAN SUBJECTS § 27.118 Applications and...lacking definite plans for involvement of human subjects. Certain types...

2014-01-01

199

28 CFR 46.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 46.118 Section 46.118...OF JUSTICE (CONTINUED) PROTECTION OF HUMAN SUBJECTS § 46.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2012-07-01

200

15 CFR 27.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 27.118 Section 27.118...the Secretary of Commerce PROTECTION OF HUMAN SUBJECTS § 27.118 Applications and...lacking definite plans for involvement of human subjects. Certain types...

2010-01-01

201

15 CFR 27.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 27.118 Section 27.118...the Secretary of Commerce PROTECTION OF HUMAN SUBJECTS § 27.118 Applications and...lacking definite plans for involvement of human subjects. Certain types...

2013-01-01

202

7 CFR 1c.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 1c.118 Section 1c.118...Secretary of Agriculture PROTECTION OF HUMAN SUBJECTS § 1c.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2010-01-01

203

49 CFR 11.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 11.118 Section 11.118...Secretary of Transportation PROTECTION OF HUMAN SUBJECTS § 11.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2011-10-01

204

38 CFR 16.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 16.118 Section 16.118...DEPARTMENT OF VETERANS AFFAIRS PROTECTION OF HUMAN SUBJECTS § 16.118 Applications and...lacking definite plans for involvement of human subjects. Certain types...

2011-07-01

205

49 CFR 11.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 11.118 Section 11.118...Secretary of Transportation PROTECTION OF HUMAN SUBJECTS § 11.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2012-10-01

206

7 CFR 1c.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 1c.118 Section 1c.118...Secretary of Agriculture PROTECTION OF HUMAN SUBJECTS § 1c.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2012-01-01

207

49 CFR 11.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 11.118 Section 11.118...Secretary of Transportation PROTECTION OF HUMAN SUBJECTS § 11.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2013-10-01

208

28 CFR 46.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 46.118 Section 46.118...OF JUSTICE (CONTINUED) PROTECTION OF HUMAN SUBJECTS § 46.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2010-07-01

209

38 CFR 16.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 16.118 Section 16.118...DEPARTMENT OF VETERANS AFFAIRS PROTECTION OF HUMAN SUBJECTS § 16.118 Applications and...lacking definite plans for involvement of human subjects. Certain types...

2012-07-01

210

7 CFR 1c.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 1c.118 Section 1c.118...Secretary of Agriculture PROTECTION OF HUMAN SUBJECTS § 1c.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2011-01-01

211

15 CFR 27.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 27.118 Section 27.118...the Secretary of Commerce PROTECTION OF HUMAN SUBJECTS § 27.118 Applications and...lacking definite plans for involvement of human subjects. Certain types...

2011-01-01

212

38 CFR 16.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...lacking definite plans for involvement of human subjects. 16.118 Section 16.118...DEPARTMENT OF VETERANS AFFAIRS PROTECTION OF HUMAN SUBJECTS § 16.118 Applications and...lacking definite plans for involvement of human subjects. Certain types...

2014-07-01

213

38 CFR 16.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 16.118 Section 16.118...DEPARTMENT OF VETERANS AFFAIRS PROTECTION OF HUMAN SUBJECTS § 16.118 Applications and...lacking definite plans for involvement of human subjects. Certain types...

2013-07-01

214

28 CFR 46.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 46.118 Section 46.118...OF JUSTICE (CONTINUED) PROTECTION OF HUMAN SUBJECTS § 46.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2011-07-01

215

49 CFR 11.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 11.118 Section 11.118...Secretary of Transportation PROTECTION OF HUMAN SUBJECTS § 11.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2010-10-01

216

7 CFR 1c.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...lacking definite plans for involvement of human subjects. 1c.118 Section 1c.118...Secretary of Agriculture PROTECTION OF HUMAN SUBJECTS § 1c.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2014-01-01

217

38 CFR 16.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 16.118 Section 16.118...DEPARTMENT OF VETERANS AFFAIRS PROTECTION OF HUMAN SUBJECTS § 16.118 Applications and...lacking definite plans for involvement of human subjects. Certain types...

2010-07-01

218

28 CFR 46.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...lacking definite plans for involvement of human subjects. 46.118 Section 46.118...OF JUSTICE (CONTINUED) PROTECTION OF HUMAN SUBJECTS § 46.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2014-07-01

219

15 CFR 27.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 27.118 Section 27.118...the Secretary of Commerce PROTECTION OF HUMAN SUBJECTS § 27.118 Applications and...lacking definite plans for involvement of human subjects. Certain types...

2012-01-01

220

41 CFR 102-118.40 - How does my agency order transportation and transportation services?  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false How does my agency order transportation and transportation services? 102-118.40 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT...

2010-07-01

221

41 CFR 102-118.40 - How does my agency order transportation and transportation services?  

Code of Federal Regulations, 2011 CFR

...2011-01-01 false How does my agency order transportation and transportation services? 102-118.40 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT...

2011-01-01

222

41 CFR 102-118.95 - What forms can my agency use to pay transportation bills?  

Code of Federal Regulations, 2012 CFR

...false What forms can my agency use to pay transportation bills? 102-118.95 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2012-01-01

223

41 CFR 102-118.40 - How does my agency order transportation and transportation services?  

Code of Federal Regulations, 2014 CFR

...2014-01-01 false How does my agency order transportation and transportation services? 102-118.40 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT...

2014-01-01

224

41 CFR 102-118.50 - How does my agency pay for transportation services?  

Code of Federal Regulations, 2014 CFR

...2014-01-01 false How does my agency pay for transportation services? 102-118.50 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2014-01-01

225

41 CFR 102-118.95 - What forms can my agency use to pay transportation bills?  

Code of Federal Regulations, 2013 CFR

...false What forms can my agency use to pay transportation bills? 102-118.95 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2013-07-01

226

41 CFR 102-118.95 - What forms can my agency use to pay transportation bills?  

Code of Federal Regulations, 2011 CFR

...false What forms can my agency use to pay transportation bills? 102-118.95 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2011-01-01

227

41 CFR 102-118.40 - How does my agency order transportation and transportation services?  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false How does my agency order transportation and transportation services? 102-118.40 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT...

2013-07-01

228

41 CFR 102-118.95 - What forms can my agency use to pay transportation bills?  

Code of Federal Regulations, 2010 CFR

...false What forms can my agency use to pay transportation bills? 102-118.95 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2010-07-01

229

41 CFR 102-118.95 - What forms can my agency use to pay transportation bills?  

Code of Federal Regulations, 2014 CFR

...false What forms can my agency use to pay transportation bills? 102-118.95 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2014-01-01

230

41 CFR 102-118.40 - How does my agency order transportation and transportation services?  

Code of Federal Regulations, 2012 CFR

...2012-01-01 false How does my agency order transportation and transportation services? 102-118.40 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT...

2012-01-01

231

21 CFR 118.9 - Administration of the Salmonella Enteritidis (SE) prevention plan.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 2010-04-01 false Administration of the Salmonella Enteritidis (SE) prevention plan. 118.9 Section 118...TRANSPORTATION OF SHELL EGGS § 118.9 Administration of the Salmonella Enteritidis (SE) prevention plan. You must...

2010-04-01

232

21 CFR 118.9 - Administration of the Salmonella Enteritidis (SE) prevention plan.  

Code of Federal Regulations, 2014 CFR

...2014-04-01 2014-04-01 false Administration of the Salmonella Enteritidis (SE) prevention plan. 118.9 Section 118...TRANSPORTATION OF SHELL EGGS § 118.9 Administration of the Salmonella Enteritidis (SE) prevention plan. You must...

2014-04-01

233

21 CFR 118.9 - Administration of the Salmonella Enteritidis (SE) prevention plan.  

Code of Federal Regulations, 2012 CFR

...2012-04-01 2012-04-01 false Administration of the Salmonella Enteritidis (SE) prevention plan. 118.9 Section 118...TRANSPORTATION OF SHELL EGGS § 118.9 Administration of the Salmonella Enteritidis (SE) prevention plan. You must...

2012-04-01

234

21 CFR 118.9 - Administration of the Salmonella Enteritidis (SE) prevention plan.  

Code of Federal Regulations, 2011 CFR

...2011-04-01 2011-04-01 false Administration of the Salmonella Enteritidis (SE) prevention plan. 118.9 Section 118...TRANSPORTATION OF SHELL EGGS § 118.9 Administration of the Salmonella Enteritidis (SE) prevention plan. You must...

2011-04-01

235

21 CFR 118.9 - Administration of the Salmonella Enteritidis (SE) prevention plan.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 2013-04-01 false Administration of the Salmonella Enteritidis (SE) prevention plan. 118.9 Section 118...TRANSPORTATION OF SHELL EGGS § 118.9 Administration of the Salmonella Enteritidis (SE) prevention plan. You must...

2013-04-01

236

42 CFR 422.118 - Confidentiality and accuracy of enrollee records.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Confidentiality and accuracy of enrollee records. 422.118 Section 422.118 Public...Beneficiary Protections § 422.118 Confidentiality and accuracy of enrollee records. For any medical records or...

2011-10-01

237

42 CFR 422.118 - Confidentiality and accuracy of enrollee records.  

Code of Federal Regulations, 2014 CFR

...2014-10-01 2014-10-01 false Confidentiality and accuracy of enrollee records. 422.118 Section 422.118 Public...Beneficiary Protections § 422.118 Confidentiality and accuracy of enrollee records. For any medical records or...

2014-10-01

238

42 CFR 422.118 - Confidentiality and accuracy of enrollee records.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Confidentiality and accuracy of enrollee records. 422.118 Section 422.118 Public...Beneficiary Protections § 422.118 Confidentiality and accuracy of enrollee records. For any medical records or...

2010-10-01

239

42 CFR 422.118 - Confidentiality and accuracy of enrollee records.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Confidentiality and accuracy of enrollee records. 422.118 Section 422.118 Public...Beneficiary Protections § 422.118 Confidentiality and accuracy of enrollee records. For any medical records or...

2012-10-01

240

42 CFR 422.118 - Confidentiality and accuracy of enrollee records.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Confidentiality and accuracy of enrollee records. 422.118 Section 422.118 Public...Beneficiary Protections § 422.118 Confidentiality and accuracy of enrollee records. For any medical records or...

2013-10-01

241

Atomic-scale studies on the growth of palladium and titanium on GaN(0001)  

E-print Network

Atomic-scale studies on the growth of palladium and titanium on GaN(0001) C. No¨renberg a,b,*, M nitride; Palladium; Titanium; Alloys; Epitaxy; Metal­semiconductor interfaces; Nanostructures; Scanning;Here, we have focused on atomic-scale studies of the ini- tial growth stages of palladium and titanium

Castell, Martin

242

Preparation and Optical Properties of Nanocomposites Containing Palladium Within Mesoporous Silica via Sol-Gel Chemistry  

Microsoft Academic Search

The preparation and optical characterization of nanocomposites comprised of palladium into mesoporous silica are presented in this paper. Introduction of palladium was conducted through two different routes involving the sol-gel technique. In the first route, monolithic porous silica produced by hydrolysis of alkoxides in advance was then impregnated into the concentrated solution containing palladium precursor, and the nanocomposite was manufactured

W. Yucheng; Z. Lide; L. Guanghai; Z. Yong; S. Guangmin

2002-01-01

243

The influence of laser wavelength and fluence on palladium nanoparticles produced by pulsed laser ablation in deionized water  

NASA Astrophysics Data System (ADS)

Homogeneous spherical palladium (Pd) nanoparticles were synthesized by pulsed laser ablation of a solid Pd foil target submerged in deionized water, without the addition of any external chemical surfactant. The influence of laser wavelength (355, 532, and 1064 nm) and fluence (8.92, 12.74, and 19.90 J/cm2) on nucleation, growth, and aggregation of Pd nanoparticles were systematically studied. Microstructural and optical properties of the obtained nanoparticles were studied by field emission transmission electron microscopy (FETEM), energy dispersive X-ray spectroscopy, and UV-vis spectroscopy. FETEM micrographs indicate that the average nanocrystallite sizes are relatively low (3-6 nm) and homogeneous for the particles synthesized at the laser wavelengths of 355 and 532 nm. However, at a laser wavelength of 1064 nm, the average nanocrystallite size is relatively large and inhomogeneous in nature. Moreover, we observe that the mean diameter and production rate of particles increases with an increase in laser fluence. The selected area electron diffraction patterns obtained from isolated Pd nanoparticles show the characteristic diffused electron diffraction rings of polycrystalline materials with a face-centered cubic structure. Absorbance spectrum of the synthesized nanoparticle solution shows a broad absorption band, which corresponds to a typical inter-band transition of a metallic system, indicating the production of pure palladium nanoparticles. The present work provides new insights into the effect of laser wavelength and fluence on the control of size and aggregation of palladium nanoparticles in the liquid medium.

Kim, Jinil; Amaranatha Reddy, D.; Ma, Rory; Kim, Tae Kyu

2014-11-01

244

Recovery of Elemental Palladium by Shewanella putrefaciens  

NASA Astrophysics Data System (ADS)

Microbial reduction of metals plays an important role in environmental behavior and provides a technique for the recovery of metals from industrial wastewater. Recently, demand for platinum group metals (PGMs) increases by their catalytic properties. The extreme rarity of PGMs have led to a growing interest in their recovery. Palladium, one of PGMs, has different oxidation states of Pd(II) and Pd(0). The oxidized form of Pd(II) is soluble, while the reduced form of Pd(0) is insoluble. In this study, microbial reduction of palladium by Fe(III)- reducing bacterium, Shewanella putrefaceins was conducted. This bacterium is known to be capable of reducing metals, such as Mn(IV), U(VI), or Tc(VII) with organic C or H2 as an electron donor. In order to investigate the potential of S. putrefaciens to reduce Pd(II) in solution, resting cells or heat-killed cells were suspended under anaerobic conditions with lactate or H2 as an electron donor. The cells of S. putrefaciens (NBRC3908) were grown in aerobic medium, harvested by centrifugation, and then washed with 25 mmol/dm3 HEPES and 100 mmol/dm3 NaCl (HEPES-NaCl) solution (pH 7.0). The heat-killed cells were autoclaved for 20 min at 121 degrees C. The cell suspension (21.5 mg in dry weight) was resuspended in the HEPES-NaCl solution which contained 1.0 mmol/dm3 Na2PdCl4 (Wako Pure chemical Industries, Ltd). The suspensions were bubbled with N2 for 15 min before 10 mmol/dm3 lactate or 4.8 v/v% H2 was added. The suspensions were then incubated at 30 degrees C. Redox potential (Eh) and pH of the solutions were measured in an inert glove box with Ar gas. Concentration of Pd(II) was measured by Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES). Deposited Pd and cells were analyzed by X-ray powder diffraction (XRD) and Scanning Electron Microscope (SEM) with Energy-Dispersive Spectroscopy (EDS). Approximately 86% of Pd(II) of the initial concentration was removed from solution by the resting cells within 24 h when lactate was used as an electron donor. A black precipitates were observed in the solution, that was confirmed as Pd(0) by XRD analysis. SEM and EDS analyses identified that Pd bearing precipitates were present on and/or in the cells. The size of the precipitates associated with cells was approximately 100 nm in diameter. Approximately 23% of Pd(II) was removed by the heat-killed cells within 24 h. The precipitates between 200 and 300 nm in diameter were observed to be associated with the heat-killed cells by SEM and EDS analyses. No removal of Pd(II) was obtained without cells. On the contrary, complete removal of Pd(II) was occurred within 4 h after exposure of the resting cells to Pd(II) solution when H2 was used as an electron donor. Approximately 88 and 80% of Pd(II) was removed within 4 h with the heat-killed cells and without cells, respectively. The measured Eh and pH values were plotted in the Eh-pH diagram calculated for Pd-Cl-H2O system indicated that chemical conditions in the solutions were saturated with respect to Pd(0) at 24 or 4 h of incubation regardless the electron donor. These findings indicate that S. putrefaciens is capable to enhance the precipitation of palladium from solution by reducing Pd(II) to Pd(0) with lactate or H2 as an electron donor.

Akasaka, S.; Xia, X.; Sawada, K.; Enokida, Y.; Yamamoto, I.; Ohnuki, T.

2006-12-01

245

Size-Dependent Antimicrobial Effects of Novel Palladium Nanoparticles  

PubMed Central

Investigating the interactions between nanoscale materials and microorganisms is crucial to provide a comprehensive, proactive understanding of nanomaterial toxicity and explore the potential for novel applications. It is well known that nanomaterial behavior is governed by the size and composition of the particles, though the effects of small differences in size toward biological cells have not been well investigated. Palladium nanoparticles (Pd NPs) have gained significant interest as catalysts for important carbon-carbon and carbon-heteroatom reactions and are increasingly used in the chemical industry, however, few other applications of Pd NPs have been investigated. In the present study, we examined the antimicrobial capacity of Pd NPs, which provides both an indication of their usefulness as target antimicrobial compounds, as well as their potency as potential environmental pollutants. We synthesized Pd NPs of three different well-constrained sizes, 2.0±0.1 nm, 2.5±0.2 nm and 3.1±0.2 nm. We examined the inhibitory effects of the Pd NPs and Pd2+ ions toward gram negative Escherichia coli (E. coli) and gram positive Staphylococcus aureus (S. aureus) bacterial cultures throughout a 24 hour period. Inhibitory growth effects of six concentrations of Pd NPs and Pd2+ ions (2.5×10?4, 10?5, 10?6, 10?7, 10?8, and 10?9 M) were examined. Our results indicate that Pd NPs are generally much more inhibitory toward S. aureus than toward E. coli, though all sizes are toxic at ?10?5 M to both organisms. We observed a significant difference in size-dependence of antimicrobial activity, which differed based on the microorganism tested. Our work shows that Pd NPs are highly antimicrobial, and that fine-scale (<1 nm) differences in size can alter antimicrobial activity. PMID:24465824

Adams, Clara P.; Walker, Katherine A.; Obare, Sherine O.; Docherty, Kathryn M.

2014-01-01

246

Development and bioorthogonal activation of palladium-labile prodrugs of gemcitabine.  

PubMed

Bioorthogonal chemistry has become one of the main driving forces in current chemical biology, inspiring the search for novel biocompatible chemospecific reactions for the past decade. Alongside the well-established labeling strategies that originated the bioorthogonal paradigm, we have recently proposed the use of heterogeneous palladium chemistry and bioorthogonal Pd(0)-labile prodrugs to develop spatially targeted therapies. Herein, we report the generation of biologically inert precursors of cytotoxic gemcitabine by introducing Pd(0)-cleavable groups in positions that are mechanistically relevant for gemcitabine's pharmacological activity. Cell viability studies in pancreatic cancer cells showed that carbamate functionalization of the 4-amino group of gemcitabine significantly reduced (>23-fold) the prodrugs' cytotoxicity. The N-propargyloxycarbonyl (N-Poc) promoiety displayed the highest sensitivity to heterogeneous palladium catalysis under biocompatible conditions, with a reaction half-life of less than 6 h. Zebrafish studies with allyl, propargyl, and benzyl carbamate-protected rhodamines confirmed N-Poc as the most suitable masking group for implementing in vivo bioorthogonal organometallic chemistry. PMID:24867590

Weiss, Jason T; Dawson, John C; Fraser, Craig; Rybski, Witold; Torres-Sánchez, Carmen; Bradley, Mark; Patton, E Elizabeth; Carragher, Neil O; Unciti-Broceta, Asier

2014-06-26

247

118. Photographic copy of historic photo, April 5, 1932 (original ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

118. Photographic copy of historic photo, April 5, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). INVAR VOLUME METER, PANEL NO. 3, OWYHEE DAM. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR

248

27 CFR 479.118 - Proof of exportation.  

Code of Federal Regulations, 2011 CFR

...Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS Importation and Exportation Exportation § 479.118 Proof of...

2011-04-01

249

27 CFR 479.118 - Proof of exportation.  

Code of Federal Regulations, 2010 CFR

...Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS Importation and Exportation Exportation § 479.118 Proof of...

2010-04-01

250

27 CFR 479.118 - Proof of exportation.  

Code of Federal Regulations, 2014 CFR

...Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS Importation and Exportation Exportation § 479.118 Proof of...

2014-04-01

251

27 CFR 479.118 - Proof of exportation.  

Code of Federal Regulations, 2012 CFR

...Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS Importation and Exportation Exportation § 479.118 Proof of...

2012-04-01

252

27 CFR 479.118 - Proof of exportation.  

Code of Federal Regulations, 2013 CFR

...Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS Importation and Exportation Exportation § 479.118 Proof of...

2013-04-01

253

24 CFR 943.118 - What is a consortium?  

Code of Federal Regulations, 2014 CFR

...SECRETARY FOR PUBLIC AND INDIAN HOUSING, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT PUBLIC HOUSING AGENCY CONSORTIA AND JOINT VENTURES Consortia § 943.118 What is a consortium? A consortium consists of two or more PHAs that join together to...

2014-04-01

254

24 CFR 943.118 - What is a consortium?  

Code of Federal Regulations, 2010 CFR

...SECRETARY FOR PUBLIC AND INDIAN HOUSING, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT PUBLIC HOUSING AGENCY CONSORTIA AND JOINT VENTURES Consortia § 943.118 What is a consortium? A consortium consists of two or more PHAs that join together to...

2010-04-01

255

24 CFR 943.118 - What is a consortium?  

Code of Federal Regulations, 2012 CFR

...SECRETARY FOR PUBLIC AND INDIAN HOUSING, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT PUBLIC HOUSING AGENCY CONSORTIA AND JOINT VENTURES Consortia § 943.118 What is a consortium? A consortium consists of two or more PHAs that join together to...

2012-04-01

256

24 CFR 943.118 - What is a consortium?  

Code of Federal Regulations, 2013 CFR

...SECRETARY FOR PUBLIC AND INDIAN HOUSING, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT PUBLIC HOUSING AGENCY CONSORTIA AND JOINT VENTURES Consortia § 943.118 What is a consortium? A consortium consists of two or more PHAs that join together to...

2013-04-01

257

118. Stage basement. View, facing south, of the south hydraulic ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

118. Stage basement. View, facing south, of the south hydraulic ram (type D) in the middle row. Photo was taken before the stage flooring was removed. - Auditorium Building, 430 South Michigan Avenue, Chicago, Cook County, IL

258

50 CFR 216.118 - Renewal of Letters of Authorization.  

Code of Federal Regulations, 2010 CFR

... REGULATIONS GOVERNING THE TAKING AND IMPORTING OF MARINE MAMMALS Taking Marine Mammals Incidental to Coastal Commercial Fireworks Displays at Monterey Bay National Marine Sanctuary, CA § 216.118 Renewal of Letters of Authorization. (a) A...

2010-10-01

259

7 CFR 4280.118-4280.120 - [Reserved  

Code of Federal Regulations, 2010 CFR

...BUSINESS-COOPERATIVE SERVICE AND RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE LOANS AND GRANTS Renewable Energy Systems and Energy Efficiency Improvements Program Section A. Grants §§ 4280.118-4280.120 [Reserved]...

2010-01-01

260

18 CFR 11.8 - Adjustment of annual charges.  

Code of Federal Regulations, 2013 CFR

...FEDERAL POWER ACT Charges for Costs of Administration, Use of Tribal Lands and Other Government Lands, and Use of Government Dams § 11.8 Adjustment of annual charges. All annual charges imposed under this subpart continue in effect as fixed...

2013-04-01

261

18 CFR 11.8 - Adjustment of annual charges.  

Code of Federal Regulations, 2010 CFR

...FEDERAL POWER ACT Charges for Costs of Administration, Use of Tribal Lands and Other Government Lands, and Use of Government Dams § 11.8 Adjustment of annual charges. All annual charges imposed under this subpart continue in effect as fixed...

2010-04-01

262

18 CFR 11.8 - Adjustment of annual charges.  

Code of Federal Regulations, 2011 CFR

...FEDERAL POWER ACT Charges for Costs of Administration, Use of Tribal Lands and Other Government Lands, and Use of Government Dams § 11.8 Adjustment of annual charges. All annual charges imposed under this subpart continue in effect as fixed...

2011-04-01

263

18 CFR 11.8 - Adjustment of annual charges.  

Code of Federal Regulations, 2014 CFR

...FEDERAL POWER ACT Charges for Costs of Administration, Use of Tribal Lands and Other Government Lands, and Use of Government Dams § 11.8 Adjustment of annual charges. All annual charges imposed under this subpart continue in effect as fixed...

2014-04-01

264

18 CFR 11.8 - Adjustment of annual charges.  

Code of Federal Regulations, 2012 CFR

...FEDERAL POWER ACT Charges for Costs of Administration, Use of Tribal Lands and Other Government Lands, and Use of Government Dams § 11.8 Adjustment of annual charges. All annual charges imposed under this subpart continue in effect as fixed...

2012-04-01

265

24 CFR 884.118 - Responsibilities of the owner.  

Code of Federal Regulations, 2014 CFR

...Section 884.118 Housing and Urban Development REGULATIONS RELATING TO HOUSING AND URBAN DEVELOPMENT (CONTINUED...DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT (SECTION 8...SET-ASIDE FOR SECTION 515 RURAL RENTAL HOUSING PROJECTS...

2014-04-01

266

24 CFR 884.118 - Responsibilities of the owner.  

Code of Federal Regulations, 2011 CFR

...Section 884.118 Housing and Urban Development REGULATIONS RELATING TO HOUSING AND URBAN DEVELOPMENT (CONTINUED...DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT (SECTION 8...SET-ASIDE FOR SECTION 515 RURAL RENTAL HOUSING PROJECTS...

2011-04-01

267

24 CFR 884.118 - Responsibilities of the owner.  

Code of Federal Regulations, 2013 CFR

...Section 884.118 Housing and Urban Development REGULATIONS RELATING TO HOUSING AND URBAN DEVELOPMENT (CONTINUED...DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT (SECTION 8...SET-ASIDE FOR SECTION 515 RURAL RENTAL HOUSING PROJECTS...

2013-04-01

268

24 CFR 884.118 - Responsibilities of the owner.  

Code of Federal Regulations, 2012 CFR

...Section 884.118 Housing and Urban Development REGULATIONS RELATING TO HOUSING AND URBAN DEVELOPMENT (CONTINUED...DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT (SECTION 8...SET-ASIDE FOR SECTION 515 RURAL RENTAL HOUSING PROJECTS...

2012-04-01

269

24 CFR 884.118 - Responsibilities of the owner.  

Code of Federal Regulations, 2010 CFR

...Section 884.118 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued...DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT (SECTION 8...SET-ASIDE FOR SECTION 515 RURAL RENTAL HOUSING PROJECTS...

2010-04-01

270

118. INTERIOR OF CABLE DISTRIBUTION CABINETS ON NORTHEAST SIDE OF ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

118. INTERIOR OF CABLE DISTRIBUTION CABINETS ON NORTHEAST SIDE OF LANDLINE INSTRUMENTATION ROOM (206), LSB (BLDG. 751) - Vandenberg Air Force Base, Space Launch Complex 3, Launch Pad 3 East, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

271

118. Guillotine type gate (in open position) to regulate stove ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

118. Guillotine type gate (in open position) to regulate stove exhausts to underground flue. - Sloss-Sheffield Steel & Iron, First Avenue North Viaduct at Thirty-second Street, Birmingham, Jefferson County, AL

272

Chemical state and reactivity of supported palladium1. Characterization by XPS ((ESCA)) and UV-visible spectroscopy  

Microsoft Academic Search

After impregnating supports with palladium chloride and drying at 120°C, the palladium was present as the tetrachloropalladate on g- and delta-alumina and on titanium dioxide, but as an aquocomplex and palladium dichloride on silica. After hydrogen-reducing for six hours at 300°C, chlorine-containing palladium complexes remained on the surface; the chlorine-palladium ratio on alumina was 1:5; and it decreased in the

F. Bozon-Verduraz; J. Escard; A. Omar; B. Pontvianne

1978-01-01

273

The oxidation-reduction kinetics of palladium powder  

NASA Astrophysics Data System (ADS)

The cyclic oxidation-reduction of submicrometer sized palladium powder was investigated over the temperature range 848 to 923 K. The total oxygen uptake was found to decrease with increasing number of cycles as a consequence of sintering. Furthermore, sintering was found to be restricted to the reduction steps in these cycles. The relationships for the rate constants of the oxidation and reduction processes are, respectively, Kx, = (1.04)106 exp[-(74.1)103/RT], kr = (7.63)1012 exp[—(207.9)103/RT]. The activation energies for the oxidation of palladium powder and the reduction of palladium oxide are 74.1 and 207.9 kJ mol-1, respectively.

Munir, Z. A.; Coombs, P. G.

1983-03-01

274

Superlattices of platinum and palladium nanoparticles  

SciTech Connect

The authors have used a nonionic inverse micelle synthesis technique to form nanoclusters of platinum and palladium. These nanoclusters can be rendered hydrophobic or hydrophilic by the appropriate choice of capping ligand. Unlike Au nanoclusters, Pt nanoclusters show great stability with thiol ligands in aqueous media. Alkane thiols, with alkane chains ranging from C{sub 6} to C{sub 18} were used as hydrophobic ligands, and with some of these they were able to form 2-D and/or 3-D superlattices of Pt nanoclusters as small as 2.7 nm in diameter. Image processing techniques were developed to reliably extract from transmission electron micrographs (TEMs) the particle size distribution, and information about the superlattice domains and their boundaries. The latter permits one to compute the intradomain vector pair correlation function of the particle centers, from which they can accurately determine the lattice spacing and the coherent domain size. From these data the gap between the particles in the coherent domains can be determined as a function of the thiol chain length. It is found that as the thiol chain length increases, the gaps between particles within superlattice domains increases, but more slowly than one might expect, possibly indicating thiol chain interdigitation.

MARTIN,JAMES E.; WILCOXON,JESS P.; ODINEK,JUDY G.; PROVENCIO,PAULA P.

2000-04-06

275

Palladium exposure of barley: uptake and effects.  

PubMed

Motor vehicles are now equipped with exhaust gas catalytic converters containing rare metals, such as palladium (Pd), platinum and rhodium, as catalytic active materials, leading to significantly increased emission of these metals. Compared with platinum and rhodium, low concentrations of Pd have been shown to have more serious effects on cells and organisms. In the present study, uptake of Pd by barley and behaviour of Pd nanoparticles in nutrient solutions used to grow plants were observed in order to develop a model of Pd exposure of plant systems. Pd determination was performed using a selective separation and pre-concentration procedure, which was further developed for this study, and coupled to graphite furnace atomic absorption spectrometry. The results show that uptake of Pd depends on Pd particle diameter. Compared to other toxic metals, like mercury, Pd causes stress effects in leaves at lower concentrations in nutrient solutions. Furthermore, Pd particles are dissolved at different rates, depending on size, in the nutrient solution during plant growth. PMID:18304202

Battke, F; Leopold, K; Maier, M; Schmidhalter, U; Schuster, M

2008-03-01

276

Migration behavior of palladium in uranium dioxide  

NASA Astrophysics Data System (ADS)

The migration behavior of palladium in UO 2 was investigated by determining the concentration profiles of Pd in UO 2 at temperatures from 1573 to 2073 K in Ar + 3% H 2. Pd was found exclusively in the pores of UO 2. The maximum penetration depth of Pd was more than 100 ? for the pellet of 90% TD and about 50 ? for the pellet of 95% TD for 100 h at 1623 K. Melted Pd wetted UO 2 well and U was detected both in precipitates and in Pd sources, forming an ?-Pd phase containing U at about 10 at.%. On the basis of thermodynamic calculations, it was found that a UPd 3 and Pd alloy containing U can form even under the oxygen potential, where O/U ratios were slightly higher than 2.00, say 2.000-2.003. From the above results, a model of the gaseous diffusion of Pd through pores in UO 2 retarded by the formation of U-Pd alloy was proposed.

Yoneyama, Mitsuru; Sato, Seichi; Ohashi, Hiroshi; Ogawa, Toru; Ito, Akinori; Fukuda, Kousaku

1997-08-01

277

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

122 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,000 Palladium 127,000 139,000 119,000 113,000 107,000 Rhodium 13,200 13,600 15,900 16,600 16,000 Ruthenium 18,059.73 4,561.06 6,203.09 7,260.00 Ruthenium 64.22 74.41 193.09 573.74 340.00 Iridium 185.33 169.51 349

278

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

120 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,000 Rhodium 11,200 12,800 13,100 12,800 11,000 Ruthenium 21,200 14,100 13,300 10,200 13,000 Iridium 1,520 3,511.00 Palladium 265.65 530.61 738.51 649.27 736.00 Rhodium 1,591.32 2,459.07 2,204.35 1,274.98 1,095.00 Ruthenium

279

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

124 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,000 Palladium 148,000 176,000 189,000 181,000 220,000 Rhodium 14,400 13,500 10,300 18,200 11,000 Ruthenium 11 184.14 289.76 363.20 691.84 770.00 Rhodium 298.00 619.83 904.35 1,990.00 1,800.00 Ruthenium 40.51 47

280

Role of palladium in the redox electrochemistry of ferrocene monocarboxylic acid encapsulated within ORMOSIL networks.  

PubMed

We report herein the effect of palladium on the redox electrochemistry of ferrocene monocarboxylic acid encapsulated within an organically modified sol-gel glass network (ORMOSIL). It has been found that amount of palladium and its geometrical distribution significantly alter the redox electrochemistry of FcMCA. The geometrical distribution of palladium has been controlled by two methods: (i) palladium is allowed to link within nanostructured network of the ORMOSIL which was subsequently availed from the reactivity of palladium chloride and trimethoxysilane; (ii) palladium powder is encapsulated together FcMCA thus allowing the presence of palladium within the nanoporous domain. The content of palladium is varied by controlling the reaction dynamics of palladium chloride and trimethoxysilane interaction. For this we initially allowed to trigger hydrolysis, condensation and poly-condensation of trimethoxysilane and dimethyldiethoxysilane in acidic medium and subsequently partially dried ORMOSIL film was allowed to interact with palladium chloride. Even with partially dried ORMOSIL derived from trimethoxysilane and dimethyldiethoxysilane undergoes rapid interaction with palladium chloride and the transparent color of ORMOSIL changed to a black colour due to the formation of palladium silicon linkage. The palladium-silicon linkage has been identified by NMR, UV-VIS and transmission electron spectroscopy. The electrochemistry of FcMCA encapsulated within such an ORMOSIL matrix has been studied. Excellent redox electrochemistry of ferrocene monocarboxylic acid having peak potential separation tending to 0 for a multilayered electrode was investigated. The palladium content has been found to affect the redox electrochemistry of ferrocene as well as electrocatalytic efficiency of new ORMOSIL material. The electroanalysis of NADH is reported. The modified electrode is very sensitive to NADH with lowest detection limit of < 1 microM. PMID:18007341

Pandey, P C; Upadhyay, B C

2005-01-01

281

Platinum-monolayer Electrocatalysts: Palladium Interlayer on IrCo Alloy Core Improves Activity in Oxygen-reduction Reaction  

SciTech Connect

We describe the synthesis and electrocatalytic properties of a new low-Pt electrocatalyst consisting of an IrCo core, a Pd interlayer, and a surface Pt monolayer, emphasizing the interlayer's role in improving electrocatalytic activity for the oxygen-reduction reaction on Pt in HClO{sub 4} solution. We prepared the IrCo alloys by decomposing, at 800 C, hexacyanometalate, KCoIr(CN){sub 6}, adsorbed on the carbon surfaces. The synthesis of Ir{sub 3}Co/C involved heating a mix of metal salts and carbon in hydrogen at 500 C. Thereafter, we placed a palladium and/or platinum monolayer on them via the galvanic displacement of an underpotentially deposited copper monolayer. The electrocatalysts were characterized using structural- and electrochemical-techniques. For PtML/PdML/IrCo/C, we observed a Pt mass activity of 1.18 A/mg{sub (Pt)} and the platinum-group-metals mass of 0.16 A/mg{sub (Pt, Pd, Ir)}. In comparison, without a Pd interlayer, i.e., Pt{sub ML}/IrCo/C, the activities of 0.15 A/mg{sub (Pt)} and 0.036 A/mg{sub (Pt, Pd, Ir)} were considerably lower. We consider that the palladium interlayer plays an essential role in achieving high catalytic activity by adjusting the electronic interaction of the platinum monolayer with the IrCo core, so that it accelerates the kinetics of adsorption and desorption of the intermediates of oxygen reduction. A similar trend was observed for Pt{sub ML}/Pd{sub ML} and Pt{sub ML} deposited on Ir{sub 3}Co/C alloy core. We used density functional theory to interpret the observed phenomena.

Gong, K.; Chen, W.-F.; Sasaki, K.; Su, D.; Vukmirovic, M.B.; Zhou, W.; Izzo, E.L.; Perez-Acosta, C.; Hirunsit, P.; Balbuena, P.B.; Adzic, R.R.

2010-11-15

282

On the corrosion behavior and biocompatibility of palladium-based dental alloys  

NASA Astrophysics Data System (ADS)

Palladium-based alloys have been used as dental restorative materials for about two decades with good clinical history. But there have been clinical case reports showing possible allergy effects from these alloys. The aim of this study was to characterize the corrosion behavior and mechanisms of several palladium-based dental alloys by potentiodynamic polarization methods, electrochemical impedance spectroscopy (EIS), and scanning Kelvin probe force microscopy/atomic force microscopy (SKPFM/AFM), and to evaluate their biocompatibility by a cell culture technique and an animal model. Using SKPFM/AFM and scanning electron microscopy, the Ru-enriched phase from the use of ruthenium as a grain-refining element was identified as being slightly more noble than the palladium solid solution matrix in a high-palladium alloy. Other secondary precipitates that exist in the microstructures of these high-palladium alloys have minimal differences in Volta potential compared to the matrix. For high-palladium alloys, corrosion is generally uniform due to the predominant palladium content in the different phases. Potentiodynamic polarization and EIS have shown that representative palladium-silver alloys have low corrosion tendency and high corrosion resistance, which are equivalent to a well-known high-noble gold-palladium alloy in simulated body fluid and oral environments. The palladium-silver alloys tested are resistant to chloride ion corrosion. Passivation and dealloying have been identified for all of the tested palladium-silver alloys. The great similarity in corrosion behavior among the palladium-silver alloys is attributed to their similar chemical compositions. The variation in microstructures of palladium-silver alloys tested does not cause significant difference in corrosion behavior. The corrosion resistance of these palladium-silver alloys at elevated potentials relevant to oral environment is still satisfactory. The release of elements from representative dental palladium alloys into cell culture media did not significantly affect the proliferation and viability of human fibroblast cells. Subcutaneous implantation of samples of one high-palladium alloy, one palladium-silver alloy and a gold alloy into mice did not cause any significant histological change in their skin and spleen. The presence of an oxide layer from dental laboratory processing of these alloys did not cause any adverse reactions from the cells or animals. The biocompatibility of the dental palladium-based alloys evaluated by the cell culture and animal models is satisfactory, suggesting that these alloys are safe for clinical usage.

Sun, Desheng

283

Synthesis of monodispersed bimetallic palladium-copper nanoscale colloids  

Microsoft Academic Search

Bimetallic clusters have been the subject of many studies of the surface chemistry and catalytic properties of metal crystallites on solid supports. Mixtures of palladium acetate and copper acetate were refluxed in 2-ethoxyethanol in the presence of poly(vinylpyrrolidone) to give 40-[angstrom] alloy nanoclusters. TEM and EDAX analysis showed that the particles were homogeneously bimetallic and crystalline, with a composition determined

John S. Bradley; Ernestine W. Hill; Carl Klein; Bruno Chaudret; Anne Duteil

1993-01-01

284

Discovery of palladium, antimony, tellurium, iodine, and xenon isotopes  

E-print Network

Currently, thirty-eight palladium, thirty-eight antimony, thirty-nine tellurium, thirty-eight iodine, and forty xenon isotopes have been observed and the discovery of these isotopes is discussed here. For each isotope a brief synopsis of the first refereed publication, including the production and identification method, is presented.

J. Kathawa; C. Fry; M. Thoennessen

2012-01-20

285

Discovery of palladium, antimony, tellurium, iodine, and xenon isotopes  

SciTech Connect

Currently, thirty-eight palladium, thirty-eight antimony, thirty-nine tellurium, thirty-eight iodine, and forty xenon isotopes have been observed and the discovery of these isotopes is described here. For each isotope a brief synopsis of the first refereed publication, including the production and identification method, is presented.

Kathawa, J.; Fry, C.; Thoennessen, M., E-mail: thoennessen@nscl.msu.edu

2013-01-15

286

Structural transitions and stabilization of palladium nanoparticles upon hydrogenation  

Microsoft Academic Search

Using an explicit empirical potential and a combination of Monte Carlo and molecular dynamics simulations, we investigate the energetic, thermal and dynamical stability of hydrogenated palladium nanoclusters containing a few hundred atoms. At zero temperature, icosahedral clusters favour tetrahedral absorption sites, while cubic clusters preferentially absorb at octahedral sites. As a consequence, icosahedra can absorb a larger quantity of hydrogen

F. Calvo; A. Carré

2006-01-01

287

Self Diffusion and Activation Energy of Liquid Palladium  

Microsoft Academic Search

Molecular dynamics studies of the temperature dependence of self diffusion coefficient of palladium has been carried out using the many body potential generated by the Embedded Atom Method of Daw and Baskes. These values as well as the results for activation energy are compared with similar results for other fcc metals.

J. I. Akhter; K. Yaldram

1997-01-01

288

STRONTIUM AS AN EFFICIENT PROMOTER FOR SUPPORTED PALLADIUM HYDROGENATION CATALYSTS  

EPA Science Inventory

The effect of strontium promotion is studied for a series of supported palladium catalysts such as Pd/zeolite-?, Pd/Al2O3, Pd/SiO2, Pd/hydrotalcite and Pd/MgO. Strontium is found to be an effective promoter for enhancing the metal area, perce...

289

Observation of a crossover in kinetic aggregation of Palladium colloids  

E-print Network

We use field emission scanning electron microscope (FE-SEM) to investigate the growth of palladium colloids over the surface of thin films of WO3/glass. The film is prepared by Pulsed Laser Deposition (PLD) at different temperatures. A PdCl2 (aq) droplet is injected on the surface and in the presence of steam hydrogen the droplet is dried through a reduction reaction process. Two distinct aggregation regimes of palladium colloids are observed over the substrates. We argue that the change in aggregation dynamics emerges when the measured water drop Contact Angel (CA) for the WO3/glass thin films passes a certain threshold value, namely CA = 46 degrees, where a crossover in kinetic aggregation of palladium colloids occurs. Our results suggest that the mass fractal dimension of palladium aggregates follows a power-law behavior. The fractal dimension (Df) in the fast aggregation regime, where the measured CA values vary from 27 up to 46 degrees, according to different substrate deposition temperatures, is Df = 1.75 (0.02). This value of Df is in excellent agreement with kinetic aggregation of other colloidal systems in fast aggregation regime. Whereas for the slow aggregation regime, with CA = 58 degrees, the fractal dimension changes abruptly to Df=1.92 (0.03). We have also used a modified Box-Counting method to calculate fractal dimension of gray-level images and observe that the crossover at around CA = 46 degrees remains unchanged.

M. Ghafari; M. Ranjbar; S. Rouhani

2014-12-27

290

Palladium based cermet composite for hydrogen separation at elevated temperature  

NASA Astrophysics Data System (ADS)

A cermet composite consisting of palladium and BaCe0.4Zr0.4Gd0.1Dy0.1O3-x (BCZGD) is fabricated by mixing palladium and BCZGD powders in a ball mill, followed by pressing and sintering at 1450 °C for 24 h in air. The Pd-BCZGD cermet demonstrates impressive hydrogen permeation flux in a mixture of hydrogen and carbon dioxide at elevated temperature, in which the palladium plays the predominant role of facile transport in the hydrogen atoms whereas the BCZGD provides channels for proton conduction. Material characterization including scanning electron microscopy (SEM), X-ray diffraction (XRD), and thermo-gravimetric analysis (TGA) are performed. XRD patterns indicate pure phases of fcc palladium and perovskite BCZGD. SEM images and element mapping suggest a homogeneous mixture of cermet without noticeable defect and phase segregation. TGA results confirm stability of the cermet against carbon dioxide without chemical decomposition. The hydrogen permeation flux is determined via a gas chromatography from 400 to 700 °C at various hydrogen concentration gradients. We record a hydrogen flux of 1.25 cm3 min-1 cm-2 in 50% hydrogen and 50% carbon dioxide at 700 °C, with a selectivity of H2/CO2 approaching infinity.

Tsai, Yen-Chang; Lin, Chien-Cheng; Lin, Wei-Lin; Wang, Jeng-Han; Chen, San-Yuan; Lin, Pang; Wu, Pu-Wei

2015-01-01

291

The Reaction of Carbon Dioxide with Palladium Allyl Bonds  

PubMed Central

A family of palladium allyl complexes of the type bis(2-methylallyl)Pd(L) (L = PMe3 (1), PEt3 (2), PPh3 (3) or NHC (4); NHC = 1,3-Bis(2,6-diisopropylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene) have been prepared through the reaction of bis(2-methylallyl)Pd with the appropriate free ligand. Compounds 1–4 contain one ?1 and one ?3-2-methylallyl ligand and 3 was characterized by X-ray crystallography. These complexes react rapidly with CO2 at low temperature to form well defined unidentate palladium carboxylates of the type (?3-2-methylallyl)Pd(OC(O)C4H7)(L) (L = PMe3 (6), PEt3 (7), PPh3 (8) or NHC (9). The structure of 9 was elucidated using X-ray crystallography. The mechanism of the reaction of 1–4 with CO2 was probed using a combination of experimental and theoretical (density functional theory) studies. The coordination mode of the allyl ligand is crucial and whereas nucleophilic ?1-allyls react rapidly with CO2, ?3-allyls do not react. We propose that the reaction of ?1-palladium allyls with CO2 does not proceed via direct insertion of CO2 into the Pd-C bond but through nucleophilic attack of the terminal olefin on electrophilic CO2, followed by an associative substitution at palladium. PMID:21218132

Wu, Jianguo; Green, Jennifer C.; Hruszkewycz, Damian P.; Incarvito, Christopher D.; Schmeier, Timothy J.

2010-01-01

292

Palladium nanoparticle-graphene hybrids as active catalysts for the Suzuki reaction  

Microsoft Academic Search

Graphene has been successfully modified with palladium nanoparticles in a facile manner by reducing palladium acetate [Pd(OAc)2] in the present of sodium dodecyl sulfate (SDS), which is used as both surfactant and the reducing agent. The palladium nanoparticle-graphene\\u000a hybrids (Pd-graphene hybrids) are characterized by high-resolution transmission electron microscopy, atomic force microscopy,\\u000a Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and energy

Yang Li; Xiaobin Fan; Junjie Qi; Junyi Ji; Shulan Wang; Guoliang Zhang; Fengbao Zhang

2010-01-01

293

Structure, energetic and phase transition of small nickel-palladium heterogeneous clusters  

NASA Astrophysics Data System (ADS)

Molecular dynamics simulation (MD) with Sutton-Chen potential for palladium-palladium, nickel-nickel and palladium-nickel interactions has been used to generate the minimum energy structures and to study the thermodynamic and dynamic properties of mixed transition metal cluster motifs of Ni n Pd(13- n) for n ? 13. Thirteen particle icosahedral clusters of neat palladium and nickel atoms were first reproduced accordingly with the results in literature. Then in the palladium icosahedra, each palladium atom has been successively replaced by nickel atom. Calculation is repeated for both palladium-centered and nickel-centered clusters. It is found that the nickel-centered clusters are more stable than the palladium-centered clusters and cohesive energy increases along the palladium end to nickel end. Phase transition of each cluster from one end-species to the other end-species is studied by means of caloric curve, root mean square bond fluctuation and heat capacity. Trend in variation of melting temperature is opposite to the energy trend. Palladium-centered cluster shows a premelting at low temperature due to the solid-solid structural transition. Species-centric order parameters developed by Hewage and Amar is used to understand the dynamic behavior in the solid-solid transition of palladium-centered cluster to more stable nickel-centered cluster (premelting). This species-centric order parameter calculation further confirmed the stability of nickel-centered species over those of palladium-centered species and solid-solid structural transition at low temperature.

Hewage, Jinasena W.

2014-06-01

294

Hydrogen transport through tubular membranes of palladium-coated tantalum and niobium  

Microsoft Academic Search

Palladium-based membranes have been used for decades in hydrogen extraction because of their high permeability and good surface properties and because palladium, like all metals, is 100% selective for hydrogen transport. The authors describe experiments with hydrogen-extraction membranes made of palladium-coated niobium and tantalum heat-exchanger tubers. The cost was about $45\\/ft of 3\\/8 inch tubular membrane, and the fluxes were

Robert E. Buxbaum; Andrew B. Kinney

1996-01-01

295

Lifetime measurements by the Doppler-shift attenuation method in the {sup 115}Sn({alpha},n{gamma}){sup 118}Te reaction  

SciTech Connect

{gamma} rays were measured at several angles in both singles and coincidence modes in the {sup 115}Sn({alpha},n{gamma}){sup 118}Te reaction at 15 MeV on a thick target. Multipolarities and mixing ratios were determined from the {gamma}-ray angular distribution analysis. Lifetimes of 11 low- and medium-spin excited states in {sup 118}Te were determined from a Monte Carlo Doppler-shift attenuation method analysis of the Doppler broadened line shapes of {gamma} rays deexciting the levels. The results are discussed in comparison with the predictions of the interacting boson model.

Mihai, C. [Horia Hulubei National Institute of Physics and Nuclear Engineering, RO-077125 Bucharest (Romania); Faculty of Physics, University of Bucharest, Bucharest (Romania); Pasternak, A. A. [Cyclotron Laboratory, A.F. Ioffe Physical Technical Institute, 194021 St. Petersburg (Russian Federation); Pascu, S.; Filipescu, D.; Ivascu, M.; Bucurescu, D.; Cata-Danil, I.; Deleanu, D.; Ghita, D. G.; Glodariu, T.; Marginean, N.; Marginean, R.; Negret, A.; Sava, T.; Stroe, L.; Suliman, G.; Zamfir, N. V. [Horia Hulubei National Institute of Physics and Nuclear Engineering, RO-077125 Bucharest (Romania); Cata-Danil, G. [Horia Hulubei National Institute of Physics and Nuclear Engineering, RO-077125 Bucharest (Romania); Physics Department, University 'Politehnica' of Bucharest, Bucharest (Romania)

2011-05-15

296

Carbon-trifluoromethyl bond forming reactions and palladium-catalyzed cyanation of (hetero)aryl halides  

E-print Network

Chapter 1 Nucleophilic trifluoromethyl sources were systematically examined in stoichiometric palladium experiments to determine the most efficient class of reagents for transmetallation. In conjunction with reductive ...

Senecal, Todd D. (Todd Dale)

2013-01-01

297

Extraction of palladium from acidic solutions with the use of carbon adsorbents  

SciTech Connect

We studied the sorption of palladium(II) on LKAU-4, LKAU-7, and BAU carbon adsorbents from model hydrochloric acid solutions and the solutions of spent palladium-containing catalysts. It was found that sorbents based on charcoal (BAU) and anthracite (LKAU-4) were characterized by high sorption capacities for palladium. The kinetics of the saturation of carbon adsorbents with palladium(II) ions was studied, and it was found that more than 60% of the initial amount of Pd(II) was recovered in a 1-h contact of an adsorbent with a model solution. This value for the solutions of spent catalysts was higher than 35%.

O.N. Kononova; N.G. Goryaeva; N.B. Dostovalova; S.V. Kachin; A.G. Kholmogorov [Krasnoyarsk State University, Krasnoyarsk (Russian Federation)

2007-08-15

298

Fixed-angle observation of surface plasmon coupled chemiluminescence from palladium thin films  

NASA Astrophysics Data System (ADS)

In this letter, the fixed-angle observation of surface plasmon coupled chemiluminescence (SPCC) from palladium thin films is reported. Fresnel calculations predict that light 492-549 nm spectral range can efficiently induce surface plasmon modes in 15 nm palladium thin films. Free-space emission from blue, green, and chartreuse chemiluminescent solutions on palladium thin films was isotropic, while the SPCC emission was highly directional and predominantly p-polarized in accordance with the predictions of the Fresnel calculations. In addition, the decay rates of the SPCC and free-space emission were similar, which suggests that palladium thin films have no catalytic effect on chemiluminescence emission.

Aslan, Kadir; Weisenberg, Micah; Hortle, Elinor; Geddes, Chris D.

2009-09-01

299

118. COTTONWOOD CREEK SPILL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

118. COTTONWOOD CREEK SPILL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; WEST VIEW OF GATES ON HIGH LINE CANAL. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

300

118. Photocopy of drawing (1958 civil engineering drawing by the ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

118. Photocopy of drawing (1958 civil engineering drawing by the Ralph M. Parsons Company) PLOT AND UTILITY PLAN FOR LAUNCH OPERATIONS BUILDING, SHEET C7 OF 40 - Vandenberg Air Force Base, Space Launch Complex 3, Launch Operations Building, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

301

Cleanup Verification Package for the 118-F-6 Burial Ground  

SciTech Connect

This cleanup verification package documents completion of remedial action for the 118-F-6 Burial Ground located in the 100-FR-2 Operable Unit of the 100-F Area on the Hanford Site. The trenches received waste from the 100-F Experimental Animal Farm, including animal manure, animal carcasses, laboratory waste, plastic, cardboard, metal, and concrete debris as well as a railroad tank car.

H. M. Sulloway

2008-10-02

302

118. #3 SHAFT ALLEY (PROPELLER SHAFT) FORWARD LOOKING AFT ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

118. #3 SHAFT ALLEY (PROPELLER SHAFT) - FORWARD LOOKING AFT ON PORT SIDE SHOWING THE SHAFT, SHAFT PACKING GLAND, SHAFT SEAL COOLING WATER LINE AND FIVE INCH FIRE MAIN PIPING. - U.S.S. HORNET, Puget Sound Naval Shipyard, Sinclair Inlet, Bremerton, Kitsap County, WA

303

CNN Newsroom Classroom Guides. December 1-18, 1998.  

ERIC Educational Resources Information Center

These guides, designed to accompany the daily Cable News Network (CNN) Newsroom broadcasts for December 1-18, 1998, provide program rundowns, suggestions for class activities and discussion, links to relevant World Wide Web sites, and a list of related news terms. Top stories include: World AIDS Day/AIDS history, Exxon and Mobile announce a…

Cable News Network, Atlanta, GA.

304

21 CFR 118.12 - Enforcement and compliance.  

Code of Federal Regulations, 2011 CFR

...STORAGE, AND TRANSPORTATION OF SHELL EGGS § 118.12 Enforcement and compliance...for the diversion or destruction of shell eggs and for informal hearings under the PHS Act: (1) Upon a finding that any shell eggs have been produced or held in...

2011-04-01

305

Agricultural and Forest Meteorology 118 (2003) 137141 Short communication  

E-print Network

in understory PAR for a mixed deciduous forest in New England, USA Matthew M. Fladeland, Mark S. Ashton, Xuhui and Plusnin, 1945). It is classified as a mixed deciduous­coniferous forest with a tree canopy comprisedAgricultural and Forest Meteorology 118 (2003) 137­141 Short communication Landscape variations

Lee, Xuhui

306

118 Environmental Science and Policy Environmental Science and Policy  

E-print Network

118 · Environmental Science and Policy Environmental Science and Policy ADVISORY COMMITTEE: A: De- Berry. The environmental problems that threaten the planet on which our society depends of the need for an appropriate balance between breadth and depth of training, the Environmental Science

Lewis, Robert Michael

307

118 Correspondence manuscript the relevant formulae were given in an  

E-print Network

and §Psychology and CPO, University of Turin, Turin, Italy *Correspondence. (e-mail: caterina.guiot@unito.it) DOI118 Correspondence manuscript the relevant formulae were given in an Appendix but were deleted would like to remark that a love for accurate phrasing should never conflict with common sense. Blood

308

Institute Archives and Special Collections Building 14N-118  

E-print Network

Institute Archives and Special Collections Building 14N-118 77 Massachusetts Avenue Cambridge, MA 02139-4307 http://libraries.mit.edu/archives A R C H I V E S Phone 617.253.5136 Fax 617.258.7305 Email of the President (Jerome B. Wiesner), 1960-1984 Archival Collection - AC 8 254 manuscript boxes 84.6 cubic feet

Reif, Rafael

309

Institute Archives and Special Collections Building 14N-118  

E-print Network

Institute Archives and Special Collections Building 14N-118 77 Massachusetts Avenue Cambridge, MA 02139-4307 http://libraries.mit.edu/archives A R C H I V E S Phone 617.253.5136 Fax 617.258.7305 Email This collection was assembled by the staff of the Institute Archives. Some publications were originally in the MIT

Reif, Rafael

310

32 CFR 552.118 - Issuance from unit arms room.  

Code of Federal Regulations, 2010 CFR

...Arms, Ammunition, and Explosives-Fort Lewis, Washington § 552.118 Issuance from...will be signed out on Headquarters Fort Lewis Form 938 (Weapons/Ammunition and Sensitive...owner with a copy of Headquarters Fort Lewis Form 816 (Registration of Personal...

2010-07-01

311

Complete oxidation of methane on palladium catalysts. Final Report  

SciTech Connect

This is the final report for grant DE-FG02-00ER15026. It summarizes all the accomplishments in these 8 sections: (1) Adaptations on Existing Unit and Construction of New Unit; (2) Turnover Rate and Reaction Orders for the Complete Oxidation of Methane on a Palladium Foil in Excess Dioxygen; (3) Surface area increase on Pd foils after oxidation in excess methane; (4) UV Raman spectroscopic study of hydrogen bonding in gibbsite and bayerite between 93 and 453 K; (5) Coverage of Palladium Catalysts by Oxidized Silicon During Complete Oxidation of Methane; (6) Kinetics of Methane Oxidation under lean conditions over Pd and PdO; (7) An Explanation for the Hysteresis on the Oxidation of Methane; and (8) Structure of Pd(111) after oxidation in O{sub 2}.

Ribeiro, Fabio H.

2003-07-17

312

The catalytic inactivation of cellulase enzyme components by palladium complexes  

SciTech Connect

It has been discovered that sodium hexachloropalladate is a strong inhibitor of cellobiohydrolase I (CBH I) from Trichoderma reesei having an I{sub 50} of <50 {mu}M with p-nitrophenylcellobioside (PNPC) as the substrate. Similar complexes of the metals platinum, osmium, iridium, and rhodium have little effect on CBH I. Other cellulase activities (Avicelase, {beta}-glucanase) are also inhibited by the palladium complex, suggesting that inhibition of two major types of catalytic activity in cellulase are affected. Preliminary data on the kinetics of inhibition of CBH I by sodium hexachloropalladate indicate that the inhibition is reversible and, possibly, uncompetitive. It is anticipated that sodium hexachloropalladate and other palladium complexes will be useful for determining the effect of the binding of catalytically inactivated CBH I and other cellulase components on the structure of cellulose fibers.

Woodward, J.; Gooch, M.G.; Shultz, M.D.

1993-10-01

313

METHOD TO TEST ISOTOPIC SEPARATION EFFICIENCY OF PALLADIUM PACKED COLUMNS  

SciTech Connect

The isotopic effect of palladium has been applied in different ways to separate hydrogen isotopes for many years. At Savannah River Site palladium deposited on kieselguhr (Pd/k) is used in a thermal cycling absorption process (TCAP) to purify tritium for over ten years. The need to design columns for different throughputs and the desire to advance the performance of TCAP created the need to evaluate different column designs and packing materials for their separation efficiency. In this work, columns with variations in length, diameter and metal foam use, were tested using an isotope displacement method. A simple computer model was also developed to calculate the number of theoretical separation stages using the test results. The effects of column diameter, metal foam and gas flow rate were identified.

Heung, L; Gregory Staack, G; James Klein, J; William Jacobs, W

2007-06-27

314

SRS history and experience with palladium diffusers. Revision 1  

SciTech Connect

The Savannah River Site (SRS) has processed tritium in support of national defense programs since 1955. Palladium diffusers have been used extensively for separating hydrogen isotopes from inert gases (such as argon, helium, and nitrogen). In almost forty years of service, the design of the diffuser has been steadily improving. Several diffuser designs from different manufacturers have been evaluated at SRS. The operating experience gained from these designs together with failure analyses performed on failed units have led to several recommendations for improved diffuser designs and operating methods. This experience gained at SRS and the following recommendations form the basis of this report. Even though palladium diffuser technology has proven to be reliable, SRS has examined several alternative technologies over the past several years. This report will also review some of these promising alternatives.

Clark, E.A.; Dauchess, D.A.; Heung, L.K.; Rabun, R.L.; Motyka, T.

1995-08-11

315

Reduction of porphyrins to porphyrinogens with palladium on carbon  

PubMed Central

Porphyrinogens serve as substrates for three heme biosynthetic enzymes. Porphyrinogens are highly unstable and must be generated as an integral part of enzyme assays. Methods commonly utilized to generate porphyrinogens include chemical reduction using sodium amalgam or sodium borohydride and enzymatic generation from porphobilinogen. Chemical reduction yields porphyrinogens in highly alkaline solutions with high ionic strength, while enzymatic generation requires purified enzymes, deproteination and complete buffer replacement. This report describes an improved method for reducing porphyrins to porphyrinogens using palladium on carbon as a catalyst under hydrogen at ambient temperature and pressure in the dark. The palladium catalyst is removed by filtration, the filtrate blown dry with an inert gas and the dried porphyrinogen can be dissolved in a buffer compatible with biological studies. PMID:18845122

Bergonia, Hector A.; Phillips, John D.; Kushner, James P.

2008-01-01

316

Structure of Palladium Nanoclusters for Hydrogen Gas Sensors  

Microsoft Academic Search

Palladium nanoclusters produced by inert gas aggregation\\/magnetron sputtering are used as building blocks for the construction of nano electronic devices with large surface to volume ratios that can be used as sensitive hydrogen gas sensors in fuel cells and in petrochemical plants. X-ray diffraction (XRD), extended X-ray absorption fine structure (EXAFS), and high resolution transmission electron microscopy (HRTEM) have been

K. J. Stevens; B. Ingham; M. F. Toney; S. A. Brown; A. Lassesson

2009-01-01

317

Structure of palladium nanoclusters for hydrogen gas sensors  

Microsoft Academic Search

Palladium nanoclusters produced by inert gas aggregation\\/magnetron sputtering are used as building blocks for the construction of nano electronic devices with large surface to volume ratios that can be used as sensitive hydrogen gas sensors in fuel cells and in petrochemical plants. X-ray diffraction (XRD), extended X-ray absorption fine structure (EXAFS), and high resolution transmission electron microscopy (HRTEM) have been

K. J. Stevens; B. Ingham; M. F. Toney; S. A. Brown; A. Lassesson

2008-01-01

318

Generating palladium nanoclusters inside functional cross-linked polymer frameworks  

Microsoft Academic Search

The use of functional resins as designable supports for palladium nanoclusters is reviewed. Data are related to the generation of Pd nanoparticles under various conditions and inside gel-type or macroporous frameworks. The combination of different physico-chemical techniques (ISEC, ESR and PGSE NMR) is illustrated as a powerful tool for evaluating nanomorphology and molecular accessibility, mainly of gel-type resins. A few

Benedetto Corain; Milan Kralik

2001-01-01

319

Mass transport on composite dense PDMS membranes with palladium nanoclusters  

Microsoft Academic Search

Sorption, diffusion and permeability coefficients of argon, hydrogen, propane, propylene and propyne were determined for unfilled poly(dimethylsiloxane) (PDMS) membranes at 308K and for PDMS membrane filled with palladium nanoclusters (5wt.%). Time-lag and sorption methods were used to obtain kinetic and equilibrium relevant parameters for characterizing the mass transport.Mass transport in a PDMS composite membrane differs from the corresponding unfilled membrane

Lúcia Brandão; Luis M. Madeira; Adélio M. Mendes

2007-01-01

320

Selective Liquid-Phase Hydrogenation of Citral over Supported Palladium  

Microsoft Academic Search

Citral in the liquid phase was reduced in a low-pressure hydrogenator by using catalysts consisting of palladium supported on (a) a mixed 80:20 SiO2\\/AlPO4system and (b) sepiolite from Vallecas (Madrid, Spain). A kinetic study provided the reaction orders in the substrate concentration and hydrogen pressure. Experimental variables such as temperature, hydrogen pressure and the type of solvent were adjusted in

M. A. Aramend??a; V. Borau; C. Jiménez; J. M. Marinas; A. Porras; F. J. Urbano

1997-01-01

321

Molecular Dynamics Study of Plastic Deformation of Nanocrystalline Palladium  

Microsoft Academic Search

\\u000a Atomistic simulations of tensile and compressive deformation of three-dimensional nanocrystalline palladium at room temperature\\u000a and different strain rates were perfomed. Detailed analysis of tensile straining has revealed almost no plasticity and an\\u000a absence of dislocation activity in the grains right up to the moment of intergranular cracking. During compressive straining\\u000a the sample exhibits a plastic regime brought about by the

D. V. Bachurin; P. Gumbsch

322

Tight-binding molecular dynamics study of palladium  

Microsoft Academic Search

We present a study of palladium by the NRL tight-binding (TB) method. We constructed a set of TB parameters by fitting to first-principles data for the electronic energies of face-centered cubic (fcc) and body-centered cubic (bcc) Pd as a function of volume. This TB Hamiltonian was then used to calculate phonon frequencies and elastic constants. Our calculations show good agreement

A. Shabaev; D. A. Papaconstantopoulos

2009-01-01

323

Palladium catalyzed aryl(alkyl)thiolation of unactivated arenes.  

PubMed

A general palladium-catalyzed aryl(alkyl)thiolation of various substituted unactivated arenes is accomplished for the synthesis of diverse unsymmetrical diaryl(alkyl) sulfides in good yield employing electrophilic sulfur reagent 6 derived from succinimide. The developed strategy was coupled with intramolecular arylation of a C-H bond to afford dibenzothiphene derivatives, an important moiety in material science as organic semiconductors. PMID:24437617

Saravanan, Perumal; Anbarasan, Pazhamalai

2014-02-01

324

Development of a Palladium-Catalyzed ?-Arylation of Cyclopropyl Nitriles.  

PubMed

1,1-Disubstituted aryl cyclopropyl nitriles are useful moieties in biologically active compounds and provide access to a range of cyclopropyl derivatives. Herein, we describe the development of a palladium-catalyzed ?-arylation of cyclopropyl, cyclobutyl, and cyclopentyl nitriles that affords these functional groups in one step from a variety of aryl bromides in good to excellent yields. Furthermore, we demonstrate the transformation of aryl cyclopropyl nitriles into aryl trifluoromethyl cyclopropanes. PMID:25474721

McCabe Dunn, Jamie M; Kuethe, Jeffrey T; Orr, Robert K; Tudge, Matthew; Campeau, Louis-Charles

2014-12-19

325

40 CFR 265.118 - Post-closure plan; amendment of plan.  

Code of Federal Regulations, 2012 CFR

... 2012-07-01 2012-07-01 false Post-closure plan; amendment of plan. 265.118 Section...WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Closure and Post-Closure § 265.118 Post-closure plan; amendment...

2012-07-01

326

40 CFR 264.118 - Post-closure plan; amendment of plan.  

Code of Federal Regulations, 2013 CFR

... 2013-07-01 2013-07-01 false Post-closure plan; amendment of plan. 264.118 Section...WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Closure and Post-Closure § 264.118 Post-closure plan; amendment...

2013-07-01

327

40 CFR 265.118 - Post-closure plan; amendment of plan.  

Code of Federal Regulations, 2014 CFR

... 2014-07-01 2014-07-01 false Post-closure plan; amendment of plan. 265.118 Section...WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Closure and Post-Closure § 265.118 Post-closure plan; amendment...

2014-07-01

328

40 CFR 264.118 - Post-closure plan; amendment of plan.  

Code of Federal Regulations, 2014 CFR

... 2014-07-01 2014-07-01 false Post-closure plan; amendment of plan. 264.118 Section...WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Closure and Post-Closure § 264.118 Post-closure plan; amendment...

2014-07-01

329

40 CFR 265.118 - Post-closure plan; amendment of plan.  

Code of Federal Regulations, 2013 CFR

... 2013-07-01 2013-07-01 false Post-closure plan; amendment of plan. 265.118 Section...WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Closure and Post-Closure § 265.118 Post-closure plan; amendment...

2013-07-01

330

40 CFR 264.118 - Post-closure plan; amendment of plan.  

Code of Federal Regulations, 2012 CFR

... 2012-07-01 2012-07-01 false Post-closure plan; amendment of plan. 264.118 Section...WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Closure and Post-Closure § 264.118 Post-closure plan; amendment...

2012-07-01

331

33 CFR 100.118 - Searsport Lobster Boat Races, Searsport Harbor, ME.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Searsport Lobster Boat Races, Searsport Harbor, ME. 100.118... § 100.118 Searsport Lobster Boat Races, Searsport Harbor, ME. (a) Regulated...commander may delay, modify, or cancel the race as conditions or circumstances...

2010-07-01

332

37 CFR 1.18 - Patent post allowance (including issue) fees.  

Code of Federal Regulations, 2010 CFR

37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Patent post allowance (including issue) fees. 1.18 Section 1.18 Patents, Trademarks, and Copyrights UNITED STATES PATENT AND TRADEMARK...

2010-07-01

333

37 CFR 1.18 - Patent post allowance (including issue) fees.  

Code of Federal Regulations, 2011 CFR

37 Patents, Trademarks, and Copyrights 1 2011-07-01 2011-07-01 false Patent post allowance (including issue) fees. 1.18 Section 1.18 Patents, Trademarks, and Copyrights UNITED STATES PATENT AND TRADEMARK...

2011-07-01

334

37 CFR 1.18 - Patent post allowance (including issue) fees.  

Code of Federal Regulations, 2014 CFR

37 Patents, Trademarks, and Copyrights 1 2014-07-01 2014-07-01 false Patent post allowance (including issue) fees. 1.18 Section 1.18 Patents, Trademarks, and Copyrights UNITED STATES PATENT AND TRADEMARK...

2014-07-01

335

37 CFR 1.18 - Patent post allowance (including issue) fees.  

Code of Federal Regulations, 2013 CFR

37 Patents, Trademarks, and Copyrights 1 2013-07-01 2013-07-01 false Patent post allowance (including issue) fees. 1.18 Section 1.18 Patents, Trademarks, and Copyrights UNITED STATES PATENT AND TRADEMARK...

2013-07-01

336

37 CFR 1.18 - Patent post allowance (including issue) fees.  

Code of Federal Regulations, 2012 CFR

37 Patents, Trademarks, and Copyrights 1 2012-07-01 2012-07-01 false Patent post allowance (including issue) fees. 1.18 Section 1.18 Patents, Trademarks, and Copyrights UNITED STATES PATENT AND TRADEMARK...

2012-07-01

337

14 CFR 1230.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 1230.118 Section 1230...AND SPACE ADMINISTRATION PROTECTION OF HUMAN SUBJECTS § 1230.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2010-01-01

338

40 CFR 26.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...lacking definite plans for involvement of human subjects. 26.118 Section 26.118...PROTECTION AGENCY GENERAL PROTECTION OF HUMAN SUBJECTS Basic EPA Policy for Protection of Subjects in Human Research Conducted or Supported by EPA...

2014-07-01

339

10 CFR 745.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...lacking definite plans for involvement of human subjects. 745.118 Section 745... DEPARTMENT OF ENERGY PROTECTION OF HUMAN SUBJECTS § 745.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2014-01-01

340

45 CFR 690.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 690.118 Section 690...NATIONAL SCIENCE FOUNDATION PROTECTION OF HUMAN SUBJECTS § 690.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2011-10-01

341

45 CFR 46.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...proposals lacking definite plans for involvement of human subjects. 46.118 Section 46.118 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION PROTECTION OF HUMAN SUBJECTS Basic HHS Policy for...

2013-10-01

342

14 CFR 1230.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 1230.118 Section 1230...AND SPACE ADMINISTRATION PROTECTION OF HUMAN SUBJECTS § 1230.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2011-01-01

343

45 CFR 46.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...proposals lacking definite plans for involvement of human subjects. 46.118 Section 46.118 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION PROTECTION OF HUMAN SUBJECTS Basic HHS Policy for...

2011-10-01

344

45 CFR 46.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...proposals lacking definite plans for involvement of human subjects. 46.118 Section 46.118 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION PROTECTION OF HUMAN SUBJECTS Basic HHS Policy for...

2012-10-01

345

16 CFR 1028.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 1028.118 Section 1028...SAFETY COMMISSION GENERAL PROTECTION OF HUMAN SUBJECTS § 1028.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2012-01-01

346

32 CFR 219.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 219.118 Section 219...CONTINUED) MISCELLANEOUS PROTECTION OF HUMAN SUBJECTS § 219.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2013-07-01

347

10 CFR 745.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 745.118 Section 745... DEPARTMENT OF ENERGY PROTECTION OF HUMAN SUBJECTS § 745.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2012-01-01

348

14 CFR 1230.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 1230.118 Section 1230...AND SPACE ADMINISTRATION PROTECTION OF HUMAN SUBJECTS § 1230.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2012-01-01

349

32 CFR 219.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 219.118 Section 219...CONTINUED) MISCELLANEOUS PROTECTION OF HUMAN SUBJECTS § 219.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2010-07-01

350

22 CFR 225.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 225.118 Section 225...INTERNATIONAL DEVELOPMENT PROTECTION OF HUMAN SUBJECTS § 225.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2010-04-01

351

10 CFR 745.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 745.118 Section 745... DEPARTMENT OF ENERGY PROTECTION OF HUMAN SUBJECTS § 745.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2011-01-01

352

22 CFR 225.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 225.118 Section 225...INTERNATIONAL DEVELOPMENT PROTECTION OF HUMAN SUBJECTS § 225.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2013-04-01

353

40 CFR 26.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 26.118 Section 26.118...PROTECTION AGENCY GENERAL PROTECTION OF HUMAN SUBJECTS Basic EPA Policy for Protection of Subjects in Human Research Conducted or Supported by EPA...

2011-07-01

354

40 CFR 26.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 26.118 Section 26.118...PROTECTION AGENCY GENERAL PROTECTION OF HUMAN SUBJECTS Basic EPA Policy for Protection of Subjects in Human Research Conducted or Supported by EPA...

2012-07-01

355

16 CFR 1028.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 1028.118 Section 1028...SAFETY COMMISSION GENERAL PROTECTION OF HUMAN SUBJECTS § 1028.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2011-01-01

356

45 CFR 690.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 690.118 Section 690...NATIONAL SCIENCE FOUNDATION PROTECTION OF HUMAN SUBJECTS § 690.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2013-10-01

357

40 CFR 26.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 26.118 Section 26.118...PROTECTION AGENCY GENERAL PROTECTION OF HUMAN SUBJECTS Basic EPA Policy for Protection of Subjects in Human Research Conducted or Supported by EPA...

2013-07-01

358

22 CFR 225.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...lacking definite plans for involvement of human subjects. 225.118 Section 225...INTERNATIONAL DEVELOPMENT PROTECTION OF HUMAN SUBJECTS § 225.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2014-04-01

359

10 CFR 745.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 745.118 Section 745... DEPARTMENT OF ENERGY PROTECTION OF HUMAN SUBJECTS § 745.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2010-01-01

360

45 CFR 690.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 690.118 Section 690...NATIONAL SCIENCE FOUNDATION PROTECTION OF HUMAN SUBJECTS § 690.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2010-10-01

361

22 CFR 225.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 225.118 Section 225...INTERNATIONAL DEVELOPMENT PROTECTION OF HUMAN SUBJECTS § 225.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2011-04-01

362

45 CFR 690.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 690.118 Section 690...NATIONAL SCIENCE FOUNDATION PROTECTION OF HUMAN SUBJECTS § 690.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2012-10-01

363

45 CFR 46.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...proposals lacking definite plans for involvement of human subjects. 46.118 Section 46.118 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION PROTECTION OF HUMAN SUBJECTS Basic HHS Policy for...

2010-10-01

364

32 CFR 219.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 219.118 Section 219...CONTINUED) MISCELLANEOUS PROTECTION OF HUMAN SUBJECTS § 219.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2012-07-01

365

10 CFR 745.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 745.118 Section 745... DEPARTMENT OF ENERGY PROTECTION OF HUMAN SUBJECTS § 745.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2013-01-01

366

45 CFR 46.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...proposals lacking definite plans for involvement of human subjects. 46.118 Section 46.118 Public Welfare Department of Health and Human Services GENERAL ADMINISTRATION PROTECTION OF HUMAN SUBJECTS Basic HHS Policy for...

2014-10-01

367

14 CFR 1230.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 1230.118 Section 1230...AND SPACE ADMINISTRATION PROTECTION OF HUMAN SUBJECTS § 1230.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2013-01-01

368

34 CFR 97.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...proposals lacking definite plans for involvement of human subjects. 97.118 Section 97.118...Secretary, Department of Education PROTECTION OF HUMAN SUBJECTS Federal Policy for the Protection of Human Subjects (Basic ED Policy for...

2010-07-01

369

45 CFR 690.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...lacking definite plans for involvement of human subjects. 690.118 Section 690...NATIONAL SCIENCE FOUNDATION PROTECTION OF HUMAN SUBJECTS § 690.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2014-10-01

370

34 CFR 97.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...proposals lacking definite plans for involvement of human subjects. 97.118 Section 97.118...Secretary, Department of Education PROTECTION OF HUMAN SUBJECTS Federal Policy for the Protection of Human Subjects (Basic ED Policy for...

2014-07-01

371

34 CFR 97.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...proposals lacking definite plans for involvement of human subjects. 97.118 Section 97.118...Secretary, Department of Education PROTECTION OF HUMAN SUBJECTS Federal Policy for the Protection of Human Subjects (Basic ED Policy for...

2012-07-01

372

16 CFR 1028.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...lacking definite plans for involvement of human subjects. 1028.118 Section 1028...SAFETY COMMISSION GENERAL PROTECTION OF HUMAN SUBJECTS § 1028.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2014-01-01

373

32 CFR 219.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...lacking definite plans for involvement of human subjects. 219.118 Section 219...CONTINUED) MISCELLANEOUS PROTECTION OF HUMAN SUBJECTS § 219.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2011-07-01

374

40 CFR 26.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 26.118 Section 26.118...PROTECTION AGENCY GENERAL PROTECTION OF HUMAN SUBJECTS Basic EPA Policy for Protection of Subjects in Human Research Conducted or Supported by EPA...

2010-07-01

375

32 CFR 219.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2014 CFR

...lacking definite plans for involvement of human subjects. 219.118 Section 219...CONTINUED) MISCELLANEOUS PROTECTION OF HUMAN SUBJECTS § 219.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2014-07-01

376

34 CFR 97.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...proposals lacking definite plans for involvement of human subjects. 97.118 Section 97.118...Secretary, Department of Education PROTECTION OF HUMAN SUBJECTS Federal Policy for the Protection of Human Subjects (Basic ED Policy for...

2013-07-01

377

16 CFR 1028.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2010 CFR

...lacking definite plans for involvement of human subjects. 1028.118 Section 1028...SAFETY COMMISSION GENERAL PROTECTION OF HUMAN SUBJECTS § 1028.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2010-01-01

378

16 CFR 1028.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2013 CFR

...lacking definite plans for involvement of human subjects. 1028.118 Section 1028...SAFETY COMMISSION GENERAL PROTECTION OF HUMAN SUBJECTS § 1028.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2013-01-01

379

22 CFR 225.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2012 CFR

...lacking definite plans for involvement of human subjects. 225.118 Section 225...INTERNATIONAL DEVELOPMENT PROTECTION OF HUMAN SUBJECTS § 225.118 Applications...lacking definite plans for involvement of human subjects. Certain types...

2012-04-01

380

34 CFR 97.118 - Applications and proposals lacking definite plans for involvement of human subjects.  

Code of Federal Regulations, 2011 CFR

...proposals lacking definite plans for involvement of human subjects. 97.118 Section 97.118...Secretary, Department of Education PROTECTION OF HUMAN SUBJECTS Federal Policy for the Protection of Human Subjects (Basic ED Policy for...

2011-07-01

381

21 CFR 118.6 - Egg testing for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2010 CFR

...Drugs 2 2010-04-01 2010-04-01 false Egg testing for Salmonella Enteritidis (SE). 118.6... PRODUCTION, STORAGE, AND TRANSPORTATION OF SHELL EGGS § 118.6 Egg testing for Salmonella Enteritidis (SE)....

2010-04-01

382

21 CFR 118.10 - Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan.  

Code of Federal Regulations, 2011 CFR

...2011-04-01 false Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan. 118.10 Section...SHELL EGGS § 118.10 Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan. (a) Records:...

2011-04-01

383

21 CFR 118.10 - Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 false Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan. 118.10 Section...SHELL EGGS § 118.10 Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan. (a) Records:...

2010-04-01

384

21 CFR 118.10 - Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 false Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan. 118.10 Section...SHELL EGGS § 118.10 Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan. (a) Records:...

2013-04-01

385

21 CFR 118.10 - Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan.  

Code of Federal Regulations, 2012 CFR

...2012-04-01 false Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan. 118.10 Section...SHELL EGGS § 118.10 Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan. (a) Records:...

2012-04-01

386

21 CFR 118.10 - Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan.  

Code of Federal Regulations, 2014 CFR

...2014-04-01 false Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan. 118.10 Section...SHELL EGGS § 118.10 Recordkeeping requirements for the Salmonella Enteritidis (SE) prevention plan. (a) Records:...

2014-04-01

387

23 CFR 636.118 - Is team switching allowed after contract award?  

Code of Federal Regulations, 2010 CFR

23 Highways 1 2010-04-01 2010-04-01... 636.118 Section 636.118 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION...ENGINEERING AND TRAFFIC OPERATIONS DESIGN-BUILD CONTRACTING General §...

2010-04-01

388

27 CFR 20.118 - Rubbing alcohol general-use formula.  

Code of Federal Regulations, 2011 CFR

...formula. 20.118 Section 20.118 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT...TREASURY LIQUORS DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM Formulas and Statements of...

2011-04-01

389

27 CFR 20.118 - Rubbing alcohol general-use formula.  

Code of Federal Regulations, 2012 CFR

...formula. 20.118 Section 20.118 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT...TREASURY LIQUORS DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM Formulas and Statements of...

2012-04-01

390

46 CFR 118.420 - Pre-engineered fixed gas fire extinguishing systems.  

Code of Federal Regulations, 2014 CFR

...2014-10-01 false Pre-engineered fixed gas fire extinguishing systems. 118.420 Section 118...OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS FIRE PROTECTION EQUIPMENT Fixed Fire Extinguishing and Detecting Systems §...

2014-10-01

391

24 CFR 904.118 - Homeowners association-planned unit development (PUD).  

Code of Federal Regulations, 2014 CFR

24 Housing and Urban Development 4 2014-04-01 2014-04-01...Homeowners association-planned unit development (PUD). 904.118 Section 904.118 Housing and Urban Development REGULATIONS RELATING TO HOUSING...

2014-04-01

392

24 CFR 904.118 - Homeowners association-planned unit development (PUD).  

Code of Federal Regulations, 2013 CFR

24 Housing and Urban Development 4 2013-04-01 2013-04-01...Homeowners association-planned unit development (PUD). 904.118 Section 904.118 Housing and Urban Development REGULATIONS RELATING TO HOUSING...

2013-04-01

393

24 CFR 904.118 - Homeowners association-planned unit development (PUD).  

Code of Federal Regulations, 2012 CFR

24 Housing and Urban Development 4 2012-04-01 2012-04-01...Homeowners association-planned unit development (PUD). 904.118 Section 904.118 Housing and Urban Development REGULATIONS RELATING TO HOUSING...

2012-04-01

394

24 CFR 904.118 - Homeowners association-planned unit development (PUD).  

Code of Federal Regulations, 2010 CFR

24 Housing and Urban Development 4 2010-04-01 2010-04-01...Homeowners association-planned unit development (PUD). 904.118 Section 904.118 Housing and Urban Development Regulations Relating to Housing...

2010-04-01

395

24 CFR 904.118 - Homeowners association-planned unit development (PUD).  

Code of Federal Regulations, 2011 CFR

24 Housing and Urban Development 4 2011-04-01 2011-04-01...Homeowners association-planned unit development (PUD). 904.118 Section 904.118 Housing and Urban Development REGULATIONS RELATING TO HOUSING...

2011-04-01

396

In situ generation of palladium nanoparticles in smectite clays  

SciTech Connect

A novel synthetic route has been developed for the preparation of clay intercalated palladium catalysts. Liquid sorption and X-ray diffraction measurements on ethanol(1)-toluene(2)/hexadecylammonium montmorillonite dispersions indicated that a toluene-rich bulk liquid phase was equilibrated with a swollen, ethanol-rich interlamellar phase having a volume of about 0.9 cm{sup 3}/g organoclay. Introduction of palladium(II) acetate into the organoclay suspension led to the generation and deposition of a metallic palladium dispersion in the interlamellar space. This system behaved as a versatile nanophase reactor, wherein the ethanol functioned as both solvent and reducing agent. The progress of the Pd{sup 2+} {r_arrow} Pd{sup 0} reaction was monitored spectrophotometrically. The ethanolic reduction afforded Pd particles 2 to 14 nm in diameter, depending on the experimental conditions, deposited on clay particle defect sites. Organoclays loaded up to 10 mass % Pd were synthesized and characterized by BET surface area analysis, transmission electron microscopy, low-shear rheology, X-ray diffraction, and small-angle X-ray scattering measurements. The Pd-organoclay samples proved to be catalytically active in olefin hydrogenation in the liquid phase. 30 refs., 8 figs., 1 tab.

Kiraly, Z.; Dekany, I.; Mastalir, A. [Attila Jozsef Univ., Szeged (Hungary)] [and others] [Attila Jozsef Univ., Szeged (Hungary); and others

1996-06-01

397

Instructions for use A Palladium-Catalyzed Biaryl Coupling of Arylboronic Acids in Aqueous Media Using A  

E-print Network

Instructions for use #12;A Palladium-Catalyzed Biaryl Coupling of Arylboronic Acids in Aqueous), was newly synthesized to perform the palladium-catalyzed biaryl coupling of arylboronic acids in a single-catalyzed biaryl coupling of arylboronic acids.2 A fine metallic palladium generated in situ from Pd(OAc)2

Tachizawa, Kazuya

398

Ultrafine nanoporous palladium-aluminum film fabricated by citric acid-assisted hot-water-treatment of aluminum-palladium alloy film  

NASA Astrophysics Data System (ADS)

Hot-water-treatment has been adapted to fabricate ultrafine nanoporous palladium-aluminum film from aluminum-palladium alloy film. Using citric acid as a chelating agent, a precipitation of boehmite (aluminum oxide hydroxide, AlOOH) on the nanoporous palladium-aluminum film was suppressed. According to cross-sectional scanning transmission electron microscopy observations, the ligament/pore sizes of the prepared nanoporous film were considerably small (on the order of 10 nm). Since this fabrication method only requires aluminum alloy film and hot-water with chelating agent, the ultrafine nanoporous film can be prepared simply and environmentally friendly.

Harumoto, Takashi; Tamura, Yohei; Ishiguro, Takashi

2015-01-01

399

41 CFR 102-118.110 - Where can I find the rules governing the use of a Government Transportation Request?  

Code of Federal Regulations, 2012 CFR

...the rules governing the use of a Government Transportation Request? 102-118.110 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2012-01-01

400

41 CFR 102-118.160 - Who is liable if my agency makes an overpayment on a transportation bill?  

Code of Federal Regulations, 2010 CFR

...liable if my agency makes an overpayment on a transportation bill? 102-118.160 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2010-07-01

401

41 CFR 102-118.145 - Where are the mandatory terms and conditions governing the use of passenger transportation...  

Code of Federal Regulations, 2010 CFR

...and conditions governing the use of passenger transportation documents? 102-118.145 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2010-07-01

402

41 CFR 102-118.145 - Where are the mandatory terms and conditions governing the use of passenger transportation...  

Code of Federal Regulations, 2011 CFR

...and conditions governing the use of passenger transportation documents? 102-118.145 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2011-01-01

403

41 CFR 102-118.110 - Where can I find the rules governing the use of a Government Transportation Request?  

Code of Federal Regulations, 2014 CFR

...the rules governing the use of a Government Transportation Request? 102-118.110 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2014-01-01

404

41 CFR 102-118.160 - Who is liable if my agency makes an overpayment on a transportation bill?  

Code of Federal Regulations, 2012 CFR

...liable if my agency makes an overpayment on a transportation bill? 102-118.160 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2012-01-01

405

41 CFR 102-118.145 - Where are the mandatory terms and conditions governing the use of passenger transportation...  

Code of Federal Regulations, 2014 CFR

...and conditions governing the use of passenger transportation documents? 102-118.145 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2014-01-01

406

41 CFR 102-118.160 - Who is liable if my agency makes an overpayment on a transportation bill?  

Code of Federal Regulations, 2013 CFR

...liable if my agency makes an overpayment on a transportation bill? 102-118.160 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2013-07-01

407

41 CFR 102-118.110 - Where can I find the rules governing the use of a Government Transportation Request?  

Code of Federal Regulations, 2013 CFR

...the rules governing the use of a Government Transportation Request? 102-118.110 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2013-07-01

408

41 CFR 102-118.150 - What are the major mandatory terms and conditions governing the use of passenger transportation...  

Code of Federal Regulations, 2013 CFR

...and conditions governing the use of passenger transportation documents? 102-118.150 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2013-07-01

409

41 CFR 102-118.110 - Where can I find the rules governing the use of a Government Transportation Request?  

Code of Federal Regulations, 2010 CFR

...the rules governing the use of a Government Transportation Request? 102-118.110 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2010-07-01

410

41 CFR 102-118.150 - What are the major mandatory terms and conditions governing the use of passenger transportation...  

Code of Federal Regulations, 2014 CFR

...and conditions governing the use of passenger transportation documents? 102-118.150 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2014-01-01

411

41 CFR 102-118.145 - Where are the mandatory terms and conditions governing the use of passenger transportation...  

Code of Federal Regulations, 2013 CFR

...and conditions governing the use of passenger transportation documents? 102-118.145 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2013-07-01

412

41 CFR 102-118.55 - What administrative procedures must my agency establish for payment of freight, household goods...  

Code of Federal Regulations, 2013 CFR

...payment of freight, household goods, or other transportation services? 102-118.55 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2013-07-01

413

41 CFR 102-118.145 - Where are the mandatory terms and conditions governing the use of passenger transportation...  

Code of Federal Regulations, 2012 CFR

...and conditions governing the use of passenger transportation documents? 102-118.145 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2012-01-01

414

41 CFR 102-118.160 - Who is liable if my agency makes an overpayment on a transportation bill?  

Code of Federal Regulations, 2014 CFR

...liable if my agency makes an overpayment on a transportation bill? 102-118.160 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2014-01-01

415

41 CFR 102-118.55 - What administrative procedures must my agency establish for payment of freight, household goods...  

Code of Federal Regulations, 2010 CFR

...payment of freight, household goods, or other transportation services? 102-118.55 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2010-07-01

416

41 CFR 102-118.65 - Can my agency receive electronic billing for payment of transportation services?  

Code of Federal Regulations, 2014 CFR

...agency receive electronic billing for payment of transportation services? 102-118.65 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2014-01-01

417

41 CFR 102-118.150 - What are the major mandatory terms and conditions governing the use of passenger transportation...  

Code of Federal Regulations, 2012 CFR

...and conditions governing the use of passenger transportation documents? 102-118.150 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2012-01-01

418

41 CFR 102-118.55 - What administrative procedures must my agency establish for payment of freight, household goods...  

Code of Federal Regulations, 2012 CFR

...payment of freight, household goods, or other transportation services? 102-118.55 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2012-01-01

419

41 CFR 102-118.150 - What are the major mandatory terms and conditions governing the use of passenger transportation...  

Code of Federal Regulations, 2011 CFR

...and conditions governing the use of passenger transportation documents? 102-118.150 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2011-01-01

420

41 CFR 102-118.55 - What administrative procedures must my agency establish for payment of freight, household goods...  

Code of Federal Regulations, 2014 CFR

...payment of freight, household goods, or other transportation services? 102-118.55 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2014-01-01

421

41 CFR 102-118.150 - What are the major mandatory terms and conditions governing the use of passenger transportation...  

Code of Federal Regulations, 2010 CFR

...and conditions governing the use of passenger transportation documents? 102-118.150 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2010-07-01

422

41 CFR 102-118.110 - Where can I find the rules governing the use of a Government Transportation Request?  

Code of Federal Regulations, 2011 CFR

...the rules governing the use of a Government Transportation Request? 102-118.110 Section 102-118...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2011-01-01

423

41 CFR 102-118.365 - Do the requirements of a prepayment audit change the disbursing official's liability for...  

Code of Federal Regulations, 2012 CFR

...official's liability for overpayment? 102-118.365 Section 102-118.365 Public Contracts and Property Management Federal...for Certifying and Disbursing Officers § 102-118.365 Do the requirements of a prepayment audit...

2012-01-01

424

41 CFR 102-118.365 - Do the requirements of a prepayment audit change the disbursing official's liability for...  

Code of Federal Regulations, 2010 CFR

...official's liability for overpayment? 102-118.365 Section 102-118.365 Public Contracts and Property Management Federal...for Certifying and Disbursing Officers § 102-118.365 Do the requirements of a prepayment audit...

2010-07-01

425

41 CFR 102-118.365 - Do the requirements of a prepayment audit change the disbursing official's liability for...  

Code of Federal Regulations, 2013 CFR

...official's liability for overpayment? 102-118.365 Section 102-118.365 Public Contracts and Property Management Federal...for Certifying and Disbursing Officers § 102-118.365 Do the requirements of a prepayment audit...

2013-07-01

426

41 CFR 102-118.365 - Do the requirements of a prepayment audit change the disbursing official's liability for...  

Code of Federal Regulations, 2014 CFR

...official's liability for overpayment? 102-118.365 Section 102-118.365 Public Contracts and Property Management Federal...for Certifying and Disbursing Officers § 102-118.365 Do the requirements of a prepayment audit...

2014-01-01

427

41 CFR 102-118.365 - Do the requirements of a prepayment audit change the disbursing official's liability for...  

Code of Federal Regulations, 2011 CFR

...official's liability for overpayment? 102-118.365 Section 102-118.365 Public Contracts and Property Management Federal...for Certifying and Disbursing Officers § 102-118.365 Do the requirements of a prepayment audit...

2011-01-01

428

Life as a sober citizen: Aldo Leopold's Wildlife Ecology 118  

NASA Astrophysics Data System (ADS)

This historic case study addressed the issue of the lack of citizen action toward environmentally responsible behavior. Although there have been studies regarding components of environmental responsible behavior [ERB], there has been little focus on historic models of exemplary figures of ERB. This study examined one of the first conservation courses in the United States, Wildlife Ecology 118, taught by Aldo Leopold (1887--1948) for 13 years at the University of Wisconsin. Today, Aldo Leopold is recognized as an exemplary conservationist whose land ethic is cited as providing the ecological approach needed for understanding the complex issues of modern society. The researcher conjectured that examination of one of the first environmental education courses could support and strengthen environmental education practices by providing a heuristic perspective. The researcher used two different strategies for analysis of the case. For Research Question One---"What were Leopold's teaching strategies in Wildlife Ecology 118?"---the researcher used methods of comparative historical analysis. The researcher examined the learning outcomes that Leopold used in Wildlife Ecology 118 and compared them against a rubric of the Four Strands for Environmental Education (North American Association for Environmental Education [NAAEE], 1999). The Four Strands for Environmental Education are the current teaching strategies used by educators. The results indicated that Wildlife Ecology 118 scored high in Knowledge of Processes and Systems and Environmental Problem Solving strands. Leopold relied on historic case examples and animal biographies to build stories that engaged students. Field trips gave students practical experience for environmental knowledge with special emphasis on phenology. For Research Question Two---"What was the context of the lessons in Wildlife Ecology 118?"---the researcher used environmental history methods for analysis. Context provided the knowledge and understanding of Leopold's choices for developing lessons that he thought would engage students to become environmentally responsible citizens. The contexts were grouped into four categories: (a) work and research related, (b) professional development, (c) leisure and, (d) public service. There were five themes that emerged from the course contexts: (a) case histories, (b) animal biographies, (c) phenology application, (d) food chains, and (e) ecosystems. The results of the study indicated that Wildlife Ecology 118 ranks high in areas of environmental problem solving and knowledge of processes and systems. Both of the areas are often difficult for educators to incorporate in their lessons. Through case histories, animal biographies, phenology, ecological diagrams, ecosystem comparisons and field trips, Leopold provides many examples that can be easily updated and used in current classroom practices, both in K--12 and college levels.

Theiss, Nancy Stearns

429

The new insight into oral drug delivery system based on metal drugs in colon cancer therapy through ?-lactoglobulin/oxali-palladium nanocapsules.  

PubMed

Many efforts have been made to improve the targeting and potential applications of oral drug delivery systems. In this paper, we have demonstrated and investigated how biopolymer nanocapsules can be used as a novel oral drug delivery system for metal-based drug delivery in colon cancer therapy. In this work, ?-lactoglobulin nanocapsules containing oxali-palladium were chosen to be synthesized and investigated for the use in colon cancer therapy. These nanocapsules were fabricated in three different pHs (3, 4.5 and 7) and investigated both in the presence and absence of low methoxyl pectin. The results obtained from these experiments indicated that the soluble and stable ?-lactoglobulin nanocapsules which contained oxali-palladium had the ability to be formed at a size smaller than 200 nm when in the presence of low methoxyl pectin and at pH 4.5. The in vitro release data indicated that the maximum release occurs at pH 7.0 and 7.5. There lease mechanism demonstrated an anomalous diffusion with a predominant contribution from erosion. Finally, it can be concluded that the ?-LG nanocapsules containing oxali-palladium complexed with low methoxyl pectin can be a very promising candidate for the use in oral drug delivery for colon cancer treatment. PMID:25190224

Ghalandari, Behafarid; Divsalar, Adeleh; Saboury, Ali Akbar; Parivar, Kazem

2014-11-01

430

21 CFR 118.5 - Environmental testing for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2010 CFR

...2010-04-01 2010-04-01 false Environmental testing for Salmonella Enteritidis (SE). 118.5 Section 118.5 Food and...TRANSPORTATION OF SHELL EGGS § 118.5 Environmental testing for Salmonella Enteritidis (SE). (a) Environmental testing when...

2010-04-01

431

21 CFR 118.5 - Environmental testing for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2012 CFR

...2012-04-01 2012-04-01 false Environmental testing for Salmonella Enteritidis (SE). 118.5 Section 118.5 Food and...TRANSPORTATION OF SHELL EGGS § 118.5 Environmental testing for Salmonella Enteritidis (SE). (a) Environmental testing when...

2012-04-01

432

21 CFR 118.5 - Environmental testing for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2013 CFR

...2013-04-01 2013-04-01 false Environmental testing for Salmonella Enteritidis (SE). 118.5 Section 118.5 Food and...TRANSPORTATION OF SHELL EGGS § 118.5 Environmental testing for Salmonella Enteritidis (SE). (a) Environmental testing when...

2013-04-01

433

21 CFR 118.5 - Environmental testing for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2014 CFR

...2014-04-01 2014-04-01 false Environmental testing for Salmonella Enteritidis (SE). 118.5 Section 118.5 Food and...TRANSPORTATION OF SHELL EGGS § 118.5 Environmental testing for Salmonella Enteritidis (SE). (a) Environmental testing when...

2014-04-01

434

21 CFR 118.5 - Environmental testing for Salmonella Enteritidis (SE).  

Code of Federal Regulations, 2011 CFR

...2011-04-01 2011-04-01 false Environmental testing for Salmonella Enteritidis (SE). 118.5 Section 118.5 Food and...TRANSPORTATION OF SHELL EGGS § 118.5 Environmental testing for Salmonella Enteritidis (SE). (a) Environmental testing when...

2011-04-01

435

Severity Indices of Personality Problems (SIPP-118) in Adolescents: Reliability and Validity  

ERIC Educational Resources Information Center

The Severity Indices of Personality Problems (SIPP-118; Verheul et al., 2008) is a self-report questionnaire focusing on core components of (mal)adaptive personality functioning. The SIPP-118 was developed and validated in an adult population. In adult populations, the 16 facets of the SIPP-118 fit into 5 higher order domains: self-control,…

Feenstra, Dine J.; Hutsebaut, Joost; Verheul, Roel; Busschbach, Jan J. V.

2011-01-01

436

41 CFR 102-118.115 - Must my agency use a GBL?  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Must my agency use a GBL? 102-118.115 Section 102-118.115...Services § 102-118.115 Must my agency use a GBL? No, your agency is not required to use a GBL and must use commercial payment...

2010-07-01

437

33 CFR 118.95 - Lights on structures not part of a bridge or approach structure.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Lights on structures not part of a bridge or approach structure. 118.95 Section 118.95 Navigation...AND OTHER SIGNALS § 118.95 Lights on structures not part of a bridge or approach...

2010-07-01

438

New Palladium-Catalyzed Approaches to Heterocycles and Carbocycles  

SciTech Connect

The tert-butylimines of o-(1-alkynyl)benzaldehydes and analogous pyridinecarbaldehydes have been cyclized under very mild reaction conditions in the presence of I{sub 2}, ICl, PhSeCl, PhSCl and p-O{sub 2}NC{sub 6}H{sub 4}SCl to give the corresponding halogen-, selenium- and sulfur-containing disubstituted isoquinolines and naphthyridines, respectively. Monosubstituted isoquinolines and naphthyridines have been synthesized by the metal-catalyzed ring closure of these same iminoalkynes. This methodology accommodates a variety of iminoalkynes and affords the anticipated heterocycles in moderate to excellent yields. The Pd(II)-catalyzed cyclization of 2-(1-alkynyl)arylaldimines in the presence of various alkenes provides an efficient way to synthesize a variety of 4-(1-alkenyl)-3-arylisoquinolines in moderate to excellent yields. The introduction of an ortho-methoxy group on the arylaldimine promotes the Pd-catalyzed cyclization and stabilizes the resulting Pd(II) intermediate, improving the yields of the isoquinoline products. Highly substituted naphthalenes have been synthesized by the palladium-catalyzed annulation of a variety of internal alkynes, in which two new carbon-carbon bonds are formed in a single step under relatively mild reaction conditions. This method has also been used to synthesize carbazoles, although a higher reaction temperature is necessary. The process involves arylpalladation of the alkyne, followed by intramolecular Heck olefination and double bond isomerization. This method accommodates a variety of functional groups and affords the anticipated highly substituted naphthalenes and carbazoles in good to excellent yields. Novel palladium migratiodarylation methodology for the synthesis of complex fused polycycles has been developed, in which one or more sequential Pd-catalyzed intramolecular migration processes involving C-H activation are employed. The chemistry works best with electron-rich aromatics, which is in agreement with the idea that these palladium-catalyzed C-H activation reactions parallel electrophilic aromatic substitution. A relatively efficient synthesis of cyclopropanes has been developed using palladium-catalyzed C-H activation chemistry, in which two new carbon-carbon bonds are formed in a single step. This method involves the palladium-catalyzed activation of relatively unreactive C-H bonds, and provides a very efficient way to synthesize cyclopropapyrrolo[1,2-a]indoles, analogues of the mitomycin antibiotics.

Qinhua Huang

2004-12-19

439

Fast detection of hydrogen with nano fiber tapers coated with ultra thin palladium layers  

Microsoft Academic Search

We report a miniature hydrogen sensor that consists of a subwavelength diameter tapered optical fiber coated with an ultra thin palladium film. The optical properties of the palladium layer changes when the device is exposed to hydrogen. Consequently, the absorption of the evanescent waves also changes. The sensor was tested in a simple light transmission measurement setup that consisted of

Joel Villatoro; David Monzón-Hernández

2005-01-01

440

ALLERGIC RESPONSE TO PLATINUM AND PALLADIUM COMPLEXES DETERMINATION OF NO-EFFECT LEVEL  

EPA Science Inventory

Rabbits, guinea pigs and mice were subcutaneously injected with PtSO4 (with and without NH4Cl) and PdSO4 (with and without NH4Cl) in an attempt to sensitize the animals to platinum or palladium. No allergic induction was found. No allergic induction to platinum or palladium was f...

441

Mild and rational synthesis of palladium complexes comprising C(4)-bound N-heterocyclic carbenes.  

PubMed

Oxidative addition of pyridyl-functionalised 4-iodoimidazolium salts to palladium(0) gives catalytically active complexes in which the N-heterocyclic carbene is bound to the palladium(II) centre in a non-classical bonding mode via C(4). PMID:17283796

Kluser, Evelyne; Neels, Antonia; Albrecht, Martin

2006-11-21

442

Molecular Dynamics Study of the Diffusion of Hydrogen in Solid Palladium  

Microsoft Academic Search

The diffusion of hydrogen atoms in solid palladium is studied via a molecular dynamics simulation. In this calculation, the palladium atoms are fixed on the sites of the fcc lattice and the hydrogen atoms are initially put on the O (octahedral) sites. Through the present molecular dynamics simulation, the diffusion constant and activation energy are calculated for several different concentrations

Tadashi Muranaka; Kentarou Uehara; Masako Takasu; Yasuaki Hiwatari

1994-01-01

443

On the lattice gas description of hydrogen in palladium: a molecular dynamics study  

Microsoft Academic Search

The occupations by hydrogen of octahedral and tetrahedral sites in palladium are determined with the simulation model of Gillan (1986). They are in agreement with the predictions of a lattice gas model. The effect of lattice relaxation on the octahedral site energies of hydrogen in palladium alloys is investigated with the damped molecular dynamics technique. The diffusion coefficients of hydrogen

E. Salomons

1990-01-01

444

Palladium-Catalyzed Decarbonylative Dehydration of Fatty Acids for the Production of Linear Alpha Olefins  

PubMed Central

A highly efficient palladium-catalyzed decarbonylative dehydration reaction of carboxylic acids is reported. This method transforms abundant and renewable even-numbered natural fatty acids into valuable and expensive odd-numbered alpha olefins. Additionally, the chemistry displays a high functional group tolerance. The process employs low loading of palladium catalyst and proceeds under solvent-free and relatively mild conditions. PMID:24772061

Liu, Yiyang; Kim, Kelly E.; Herbert, Myles B.; Fedorov, Alexey; Grubbs, Robert H.; Stoltz, Brian M.

2014-01-01

445

Preparation and characterisation of montmorillonite-supported palladium hydrogenation catalysts possessing molecular sieving properties  

SciTech Connect

Highly dispersed palladium metal has been deposited in the interlayer space of montmorillonite clay by the reduction of intercalated palladium complexes. The use of the highly electrophilic Pd(II) precursor complexes [Pd(PPh[sub 3])(NCMe)[sub 3

Crocker, M.; Herold, R.H.M.; Buglass, J.G.; Companje, P. (Koninklijke/Shell-Laboratorium, Amsterdam (Netherlands))

1993-06-01

446

From anilines to isatins: oxidative palladium-catalyzed double carbonylation of c?h bonds.  

PubMed

A novel palladium-catalyzed C?H double carbonylation introduces two adjacent carbonyl groups for the synthesis of isatins from readily available anilines. The reaction proceeds under atmospheric pressure of CO with high regioselectivity and without any additives. Density functional theory investigations indicate that the palladium-catalyzed double carbonylation catalytic cycle is plausible. PMID:25521770

Li, Wu; Duan, Zhengli; Zhang, Xueye; Zhang, Heng; Wang, Mengfan; Jiang, Ru; Zeng, Hongyao; Liu, Chao; Lei, Aiwen

2015-02-01

447

An adiabatic type of palladium membrane reactor for coupling endothermic and exothermic reactions  

Microsoft Academic Search

Palladium can play an interesting role as a catalytic membrane, that is, a hydrogen separative and catalytically active wall. Utilizing this function, a palladium membrane reactor capable of working under an adiabatic condition was designed in this study for coupling two conjugated reactions. On one side of the membrane, dehydrogenation of cyclohexane as a model takes place in the catalyst-packed

Naotsugu Itoh; Tian-Hua Wu

1997-01-01

448

A quantum chemical consideration of ligand exchange in palladium(ii) aqueous and chloride complexes  

Microsoft Academic Search

The behavior of potassium tetrachloropalladate(II) in media simulating biological fluids has been studied. In aqueous solutions of NaCl, the aquation rate is higher than the rate of chloro ligand introduction into the internal coordination sphere of palladium. In HCl solutions, on the contrary, the process of palladium chloro complex formation predominates. The latter is apparently due to protonation of water

Alexei N. Pankratov; Vladimir B. Borodulin; Olga A. Chaplygina

2004-01-01

449

Palladium extraction from nitrate solutions by tertiary amines and quaternary ammonium salts  

Microsoft Academic Search

The mechanism of palladium extraction by trilaurylamine and trilaurylmethylammonium nitrate from nitric acid solutions was studied. The composition of the extracted compounds was determined by the Job method as well as by organic phase saturation. Both reagents were found to extract palladium as Am2Pd\\/NO3\\/4 \\/Am=ammonium cation\\/.

P. Tarap?ík; V. Mikulaj

1986-01-01

450

A 77-118 GHz resonance-free Septum polarizer  

NASA Astrophysics Data System (ADS)

Challenging the conventional bandwidth limit, we design an extremely wide-band circular waveguide septum polarizer, covering 42% bandwidth, from 77 GHz to 118 GHz, without any high-order resonance. The performance of this polarizer has been verified in between 75 GHz and 115 GHz. The Stokes parameters constructed from the measured data show that the leakages from I to Q are below ±2% and the Q U mutual leakage below ±1%. This result removes the major weakness of the septum polarizer and opens up a new domain of astronomical instrumentation for polarization measurement. Despite this polarizer is designed to cover 77-118 GHz, it can be straightforwardly downsized to cover higher frequencies with minor change. The measurement result of a G-band (140-220 GHz) polarizer is also presented.

Chen, Yen-Lin; Teng, Hsiao-Feng; Chiueh, Tzihong

2014-07-01

451

41 CFR 102-118.80 - Who is responsible for keeping my agency's electronic commerce transportation billing records?  

Code of Federal Regulations, 2011 CFR

...for keeping my agency's electronic commerce transportation billing records? 102-118.80 Section...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2011-01-01

452

41 CFR 102-118.80 - Who is responsible for keeping my agency's electronic commerce transportation billing records?  

Code of Federal Regulations, 2012 CFR

...for keeping my agency's electronic commerce transportation billing records? 102-118.80 Section...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2012-01-01

453

41 CFR 102-118.80 - Who is responsible for keeping my agency's electronic commerce transportation billing records?  

Code of Federal Regulations, 2013 CFR

...for keeping my agency's electronic commerce transportation billing records? 102-118.80 Section...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2013-07-01

454

41 CFR 102-118.80 - Who is responsible for keeping my agency's electronic commerce transportation billing records?  

Code of Federal Regulations, 2010 CFR

...for keeping my agency's electronic commerce transportation billing records? 102-118.80 Section...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2010-07-01

455

41 CFR 102-118.80 - Who is responsible for keeping my agency's electronic commerce transportation billing records?  

Code of Federal Regulations, 2014 CFR

...for keeping my agency's electronic commerce transportation billing records? 102-118.80 Section...Continued) FEDERAL MANAGEMENT REGULATION TRANSPORTATION 118-TRANSPORTATION PAYMENT AND AUDIT Ordering and Paying...

2014-01-01

456

COST-EFFECTIVE METHOD FOR PRODUCING SELF SUPPORTED PALLADIUM ALLOY MEMBRANES FOR USE IN EFFICIENT PRODUCTION OF COAL DERIVED HYDROGEN  

SciTech Connect

Competed fabrication of an initial series of copper and palladium-copper alloy membranes in the range of 1-8 microns in thickness up to 6 inch x 8 inch in area. Films were produced using both e-beam evaporation (with and without ion assist) and magnetron sputtering from a 60%Pd/40%Cu alloy target. Pure copper and palladium-copper alloy films, with essential no intrinsic stress, were produced on both polystyrene and polyvinyl alcohol substrates. Various processing parameters and techniques were investigated in order to minimize defects and maximize uniformity in single layer films. Even though films to date are visually defect free, we are able to observe sub-micron size defects using a backlighting technique; we are currently investigating a number of methods to create a gas impermeable membrane. At present, the metal films are effectively removed from the polymer backing material by merely immersing the film in an appropriate solvent; chloroform for the polystyrene and water for the PVA. In the future we plan to investigate alternative methods for removing the polymer backing that are more suited to large scale, low-cost manufacturing.

B. Lanning; J. Arps

2004-01-01

457

MASKER MASKER TARGET TARGET TARGET  

E-print Network

from a large speech database (Ives et al,2005). The original speech is from one speaker Probabilitycorrect -6 dB 0 dB Listeners were presented with two phrases of concurrent speech syllables. The masker syllables coincided with the second and third target syllables. The speech syllables were taken

Ives, D. Timothy

458

STS-118 Astronaut Dave Williams Trains Using Virtual Reality Hardware  

NASA Technical Reports Server (NTRS)

STS-118 astronaut and mission specialist Dafydd R. 'Dave' Williams, representing the Canadian Space Agency, uses Virtual Reality Hardware in the Space Vehicle Mock Up Facility at the Johnson Space Center to rehearse some of his duties for the upcoming mission. This type of virtual reality training allows the astronauts to wear special gloves and other gear while looking at a computer that displays simulating actual movements around the various locations on the station hardware which with they will be working.

2007-01-01

459

118. Photographic copy of drawing (undated, original drawing in Archives, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

118. Photographic copy of drawing (undated, original drawing in Archives, Office of the Building, Administration Building, Sears, Roebuck and Company Mail Order Plant, Chicago, Illinois). Larsen-Wulff Architects. 1/16 inch to one foot. Drawing of the entire floor plan from Homan Avenue to Central Park Avenue, probably traced in the 1970's or early 1980's. FOURTH FLOOR PLAN - WEST HALF - Sears Roebuck & Company Mail Order Plant, Merchandise Building, 924 South Homan Avenue, Chicago, Cook County, IL

460

Interstitial modification of palladium nanoparticles with boron atoms as a green catalyst for selective hydrogenation  

NASA Astrophysics Data System (ADS)

Lindlar catalysts comprising of palladium/calcium carbonate modified with lead acetate and quinoline are widely employed industrially for the partial hydrogenation of alkynes. However, their use is restricted, particularly for food, cosmetic and drug manufacture, due to the extremely toxic nature of lead, and the risk of its leaching from catalyst surface. In addition, the catalysts also exhibit poor selectivities in a number of cases. Here we report that a non-surface modification of palladium gives rise to the formation of an ultra-selective nanocatalyst. Boron atoms are found to take residence in palladium interstitial lattice sites with good chemical and thermal stability. This is favoured due to a strong host–guest electronic interaction when supported palladium nanoparticles are treated with a borane tetrahydrofuran solution. The adsorptive properties of palladium are modified by the subsurface boron atoms and display ultra-selectivity in a number of challenging alkyne hydrogenation reactions, which outclass the performance of Lindlar catalysts.

Chan, Chun Wong Aaron; Mahadi, Abdul Hanif; Li, Molly Meng-Jung; Corbos, Elena Cristina; Tang, Chiu; Jones, Glenn; Kuo, Winson Chun Hsin; Cookson, James; Brown, Christopher Michael; Bishop, Peter Trenton; Tsang, Shik Chi Edman

2014-12-01

461

Interstitial modification of palladium nanoparticles with boron atoms as a green catalyst for selective hydrogenation.  

PubMed

Lindlar catalysts comprising of palladium/calcium carbonate modified with lead acetate and quinoline are widely employed industrially for the partial hydrogenation of alkynes. However, their use is restricted, particularly for food, cosmetic and drug manufacture, due to the extremely toxic nature of lead, and the risk of its leaching from catalyst surface. In addition, the catalysts also exhibit poor selectivities in a number of cases. Here we report that a non-surface modification of palladium gives rise to the formation of an ultra-selective nanocatalyst. Boron atoms are found to take residence in palladium interstitial lattice sites with good chemical and thermal stability. This is favoured due to a strong host-guest electronic interaction when supported palladium nanoparticles are treated with a borane tetrahydrofuran solution. The adsorptive properties of palladium are modified by the subsurface boron atoms and display ultra-selectivity in a number of challenging alkyne hydrogenation reactions, which outclass the performance of Lindlar catalysts. PMID:25523894

Chan, Chun Wong Aaron; Mahadi, Abdul Hanif; Li, Molly Meng-Jung; Corbos, Elena Cristina; Tang, Chiu; Jones, Glenn; Kuo, Winson Chun Hsin; Cookson, James; Brown, Christopher Michael; Bishop, Peter Trenton; Tsang, Shik Chi Edman

2014-01-01

462

A novel lead compound CM-118: antitumor activity and new insight into the molecular mechanism and combination therapy strategy in c-Met- and ALK-dependent cancers.  

PubMed

The anaplastic lymphoma kinase (ALK) and the c-Met receptor tyrosine kinase play essential roles in the pathogenesis in multiple human cancers and present emerging targets for cancer treatment. Here, we describe CM-118, a novel lead compound displaying low nanomolar biochemical potency against both ALK and c-Met with selectivity over>90 human kinases. CM-118 potently abrogated hepatocyte growth factor (HGF)-induced c-Met phosphorylation and cell migration, phosphorylation of ALK, EML4-ALK, and ALK resistance mutants in transfected cells. CM-118 inhibited proliferation and/or induced apoptosis in multiple c-Met- and ALK-addicted cancer lines with dose response profile correlating target blockade. We show that the CM-118-induced apoptosis in c-Met-amplified H1993 NSCLC cells involved a rapid suppression of c-Met activity and c-Met-to-EGFR cross-talk, and was profoundly potentiated by EGFR inhibitors as shown by the increased levels of apoptotic proteins cleaved-PARP and Bim as well as reduction of the survival protein Mcl-1. Bim-knockdown or Mcl-1 overexpression each significantly attenuated apoptosis. We also revealed a key role by mTOR in mediating CM-118 action against the EML4-ALK-dependent NSCLC cells. Abrogation of EML4-ALK in H2228 cells profoundly reduced signaling capacity of the rapamycin-sensitive mTOR pathway leading to G 1 cell cycle arrest and mitochondrial hyperpolarization, a metabolic perturbation linked to mTOR inhibition. Depletion of mTOR or mTORC1 inhibited H2228 cell growth, and mTOR inhibitors potentiated CM-118's antitumor activity in vitro and in vivo. Oral administration of CM-118 at a wide range of well tolerated dosages diminished c-Met- and ALK phosphorylation in vivo, and caused tumor regression or growth inhibition in multiple c-Met- and ALK-dependent tumor xenografts in mice. CM-118 exhibits favorable pharmacokinetic and drug metabolism properties hence presents a candidate for clinical evaluation. PMID:24618813

Meng, Lanfang; Shu, Mengjun; Chen, Yaqing; Yang, Dexiao; He, Qun; Zhao, Hui; Feng, Zhiyong; Liang, Chris; Yu, Ker

2014-06-01

463

Preliminary studies on palladium nanoparticle as a novel label for DNA microarray and their corresponding detection.  

PubMed

This paper firstly describes the preliminary results achieved by using palladium nanoparticle (Pd NP) as a novel label for the detection of DNA hybridization in DNA microarray. And two signal amplification procedures based on "the silver staining" or "the cobalt staining" are presented during above analysis. The results show that the label Pd NP-ssDNA (target) (single strand DNA(target)) performs high single base pair mismatch-discrimination capability. The succeeding silver staining or cobalt staining procedure greatly amplifies such a signal through the catalysis of Pd. For "the silver staining:' the background staining is very low and the silver deposition only occurs around Pd NPs. So such a procedure provides a alternative for "Gold Label Silver Stain" presented by Mirkin C. A. For "the cobalt staining," not only a colorimetric array but also a magnetic sensor (such as Magnetic Tunnel Junction sensor, MTJ) can be used to detect the obtained cobalt dot due to its strong magnetic property, which provides a new strategy for DNA microarray detection. So as the proof-of-concept investigations, this work proved the feasibility of the application of Pd NPs as the label in DNA microarray assay. PMID:23858969

Wang, Zhifei; Li, Hongyin; Zhen, Shuang; Zhang, Yuanying; He, Nongyue

2013-06-01

464

Luminescent Cyclometalated Platinum and Palladium Complexes with Novel Photophysical Properties  

NASA Astrophysics Data System (ADS)

Organic light emitting diodes (OLEDs) is a rapidly emerging technology based on organic thin film semiconductors. Recently, there has been substantial investment in their use in displays. In less than a decade, OLEDs have grown from a promising academic curiosity into a multi-billion dollar global industry. At the heart of an OLED are emissive molecules that generate light in response to electrical stimulation. Ideal emitters are efficient, compatible with existing materials, long lived, and produce light predominantly at useful wavelengths. Developing an understanding of the photophysical processes that dictate the luminescent properties of emissive materials is vital to their continued development. Chapter 1 and Chapter 2 provide an introduction to the topics presented and the laboratory methods used to explore them. Chapter 3 discusses a series of tridentate platinum complexes. A synthetic method utilizing microwave irradiation was explored, as well as a study of the effects ligand structure had on the excited state properties. Results and techniques developed in this endeavor were used as a foundation for the work undertaken in later chapters. Chapter 4 introduces a series of tetradentate platinum complexes that share a phenoxy-pyridyl (popy) motif. The new molecular design improved efficiency through increased rigidity and modification of the excited state properties. This class of platinum complexes were markedly more efficient than those presented in Chapter 3, and devices employing a green emitting complex of the series achieved nearly 100% electron-to-photon conversion efficiency in an OLED device. Chapter 5 adapts the ligand structure developed in Chapter 4 to palladium. The resulting complexes exceed reported efficiencies of palladium complexes by an order of magnitude. This chapter also provides the first report of a palladium complex as an emitter in an OLED device. Chapter 6 discusses the continuation of development efforts to include carbazolyl components in the ligand. These complexes possess interesting luminescent properties including ultra-narrow emission and metal assisted delayed fluorescence (MADF) emission.

Turner, Eric

465

Palladium nanoparticles on InP for hydrogen detection  

PubMed Central

Layers of palladium (Pd) nanoparticles on indium phosphide (InP) were prepared by electrophoretic deposition from the colloid solution of Pd nanoparticles. Layers prepared by an opposite polarity of deposition showed different physical and morphological properties. Particles in solution are separated and, after deposition onto the InP surface, they form small aggregates. The size of the aggregates is dependent on the time of deposition. If the aggregates are small, the layer has no lateral conductance. Forward and reverse I-V characteristics showed a high rectification ratio with a high Schottky barrier height. The response of the structure on the presence of hydrogen was monitored. PMID:21711487

2011-01-01

466

Palladium-Catalyzed anti-Markovnikov Oxidation of Terminal Alkenes.  

PubMed

The palladium-catalyzed oxidation of alkenes, the Wacker-Tsuji reaction, is undoubtedly a classic in organic synthesis and provides reliable access to methyl ketones from terminal alkenes under mild reaction conditions. Methods that switch the selectivity of the reaction to provide the aldehyde product are desirable because of the access they provide to a valuable functional group, however such methods are elusive. Herein we survey both the methods which have been developed recently in achieving such selectivity and discuss common features and mechanistic insight which offers promise in achieving the goal of a general method for anti-Markovnikov-selective olefin oxidations. PMID:25367376

Dong, Jia Jia; Browne, Wesley R; Feringa, Ben L

2015-01-12

467

Determination of palladium and platinum by atomic absorption  

USGS Publications Warehouse

Palladium and platinum are determined by atomic absorption after fire-assay concentration into a gold bead. The limit of determination is ~0??06 ppm in a 20-g sample. Serious depressive interelement interferences are removed by buffering the solutions with a mixture of cadmium and copper sulphates with cadmium and copper concentrations each at 0??5%. Substantial amounts of Ag, Al, Au, Bi, Ca, Co, Cr, Fe, Hg, K, La, Mg, Mn, Mo, Na, Ni, Pb, Te, Ti, V, Y, Zn, and the platinum metals do not interfere in the atomic-absorption determination. ?? 1969.

Schnepfe, M.M.; Grimaldi, F.S.

1969-01-01

468

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

120 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,600 11,200 12,800 13,100 13,000 Ruthenium 49,800 21,200 14,100 13,200 12,500 Iridium 2,550 1,520 3,530 2.12 265.65 530.61 738.51 650.00 Rhodium 6,533.57 1,591.32 2,459.07 2,204.35 1,300.00 Ruthenium 324.60 97

469

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

124 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,000 Rhodium 10,300 18,200 12,400 9,890 8,630 Ruthenium 11,400 20,900 8,170 10,800 9,940 Iridium 2,270 2,700 3,598.67 838.88 750.25 Ruthenium 40.70 129.76 130.67 66.33 55.60 Employment, mine, number 954 1,290 1,320 1

470

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

126 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,000 Rhodium 12,000 13,200 13,600 15,900 18,000 Ruthenium 15,900 18,800 23,200 36,000 37,000 Iridium 2,200 3.00 232.93 203.54 322.93 360.00 Rhodium 530.28 983.24 2,059.73 4,561.06 6,060.00 Ruthenium 35.43 64.22 74

471

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

124 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,000 105,000 119,000 Rhodium 18,200 12,400 9,890 12,000 10,000 Ruthenium 20,900 8,170 10,800 15,900 13.00 Rhodium 1,990.00 1,598.67 838.88 530.28 736.00 Ruthenium 129.76 130.67 66.33 35.43 57.00 Employment, mine

472

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

120 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,600 12,600 11,200 12,800 12,000 Ruthenium 48,700 49,800 21,200 14,100 15,000 Iridium 3,410 2,550 1,520 3.34 355.12 265.65 530.61 730.00 Rhodium 6,203.09 6,533.57 1,591.32 2,459.07 2,030.00 Ruthenium 573.74 324

473

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

126 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,800 Rhodium 13,500 10,300 18,200 12,400 7,560 Ruthenium 8,880 11,400 20,900 8,170 10,800 Iridium 1,950 2,270 2,990.00 1,598.67 750.75 Ruthenium 47.95 40.70 129.76 130.67 60.00 Employment, mine, number 620 954 1,290 1

474

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

126 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,000 Rhodium 12,400 8,630 12,000 13,200 14,000 Ruthenium 8,170 9,890 15,900 18,800 24,000 Iridium 3,110 2,100 2.00 Rhodium 1,600.00 838.88 530.28 983.24 2,000.00 Ruthenium 130.67 66.33 35.43 64.22 70.00 Iridium 415.25 294

475

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

120 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,600 12,600 11,200 13,000 Ruthenium 36,000 48,700 49,800 21,200 14,000 Iridium 2,800 3,410 2,550 1,520 3.12 265.65 500 Rhodium 4,561.06 6,203.09 6,533.57 1,591.32 2,500 Ruthenium 193.09 573.74 324.60 97.28 198

476

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

122 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,000 Rhodium 8,630 12,000 13,200 13,600 17,000 Ruthenium 9,890 15,900 18,800 23,200 30,000 Iridium 2,100 2.00 232.93 203.54 330.00 Rhodium 838.88 530.28 983.24 2,059.73 4,300.00 Ruthenium 66.33 35.43 64.22 74

477

PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium)  

E-print Network

120 PLATINUM-GROUP METALS (Platinum, palladium, rhodium, ruthenium, iridium, osmium) (Data,900 16,600 12,600 10,200 Ruthenium 23,200 36,000 48,700 49,800 21,600 Iridium 3,010 2,800 3,410 2,550 1.34 355.12 254.00 Rhodium 2,059.73 4,561.06 6,203.09 6,533.57 1,468.00 Ruthenium 74.41 193.09 573.74 324

478

Synthesis of Dihydrobenzofurans via Palladium-Catalyzed Heteroannulations  

SciTech Connect

Palladium-catalyzed heteroannulation of 1,3-dienes with 3-iodo-2-alkenols, and 2-iodo-2-alkenols, as well as their amino analogs, affords the corresponding cyclic ethers and amines respectively. The presence of a {beta}-hydrogen in the vinylic halide results in {beta}-hydride elimination giving the corresponding alkyne. The presence of a bulky group in the {alpha}-position of the vinylic halide results in failure or reduced amounts of annulation products. A chloride source, pyridine base and electron-rich phosphine are essential for this reaction.

Roman Vladimirovich Rozhkov

2004-12-19

479

Isomerization of diacetoxybutenes on intermetallic compounds of palladium and rhodium  

SciTech Connect

A study has been made of the isomerization of cis- and trans-1,4-diacetoxybut-2-enes and 3,4-diacetoxybut-1-ene, catalysed by intermetallic compounds of palladium and rhodium. During geometric isomerization, two mechanisms are realized: the traditional triplet (biradical) mechanism and an exchange mechanism. Skeletal-structural isomerization is the intermediate link during Z,E-transformation of diacetoxybutenes. The predominant formation of one of the geometric isomers is determined by the nature of the platinoid atom in the catalytic system. 8 refs., 2 figs., 3 tabs.

Devekki, A.V.; Yakushkin, M.I.; Kul`chitskaya, T.Yu.; Trushova, N.V. [All-Union Scientific Research Inst. of Petrochemical Processes, St. Petersburg (Russian Federation)

1992-12-31

480

Ozone sensing based on palladium decorated carbon nanotubes.  

PubMed

Multiwall carbon nanotubes (MWCNTs) were easily and efficiently decorated with Pd nanoparticles through a vapor-phase impregnation-decomposition method starting from palladium acetylacetonates. The sensor device consisted on a film of sensitive material (MWCNTs-Pd) deposited by drop coating on platinum interdigitated electrodes on a SiO? substrate. The sensor exhibited a resistance change to ozone (O?) with a response time of 60 s at different temperatures and the capability of detecting concentrations up to 20 ppb. The sensor shows the best response when exposed to O3 at 120 °C. The device shows a very reproducible sensor performance, with high repeatability, full recovery and efficient response. PMID:24736133

Colindres, Selene Capula; Aguir, Khalifa; Cervantes Sodi, Felipe; Vargas, Luis Villa; Salazar, José Moncayo; Febles, Vicente Garibay

2014-01-01

481

Palladium-catalyzed coupling reactions of tetrafluoroethylene with arylzinc compounds.  

PubMed

Organofluorine compounds are widely used in all aspects of the chemical industry. Although tetrafluoroethylene (TFE) is an example of an economical bulk organofluorine feedstock, the use of TFE is mostly limited to the production of poly(tetrafluoroethylene) and copolymers with other alkenes. Furthermore, no catalytic transformation of TFE that involves carbon-fluorine bond activation has been reported to date. We herein report the first example of a palladium-catalyzed coupling reaction of TFE with arylzinc reagents in the presence of lithium iodide, giving ?,?,?-trifluorostyrene derivatives in excellent yields. PMID:21322557

Ohashi, Masato; Kambara, Tadashi; Hatanaka, Tsubasa; Saijo, Hiroki; Doi, Ryohei; Ogoshi, Sensuke

2011-03-16

482

Bulk synthesis of nanoporous palladium and platinum powders  

DOEpatents

Disclosed is a method for providing nanoporous palladium and platinum powders. These materials were synthesized on milligram to gram scales by chemical reduction of tetrahalo-complexes with ascorbate in a concentrated aqueous surfactant at temperatures between -20.degree. C. and 30.degree. C. The prepared particles have diameters of approximately 50 nm, wherein each particle is perforated by pores having diameters of approximately 3 nm, as determined by electron tomography. These materials are of potential value for hydrogen and electrical charge storage applications.

Robinson, David B; Fares, Stephen J; Tran, Kim L; Langham, Mary E

2014-04-15

483

The study of palladium ions incorporation into the mesoporous ordered silicates  

NASA Astrophysics Data System (ADS)

In this work mesoporous ordered silica materials containing palladium species were prepared using of tetraammine palladium chloride ([Pd(NH3)4]Cl2) complex as a palladium source during synthesis and by wetness impregnation of pure support by solution containing dissolved metal salt. The ammonia ligands from tetraammine palladium chloride were removed during calcination or during thermal treatment at 300 °C in oxygen atmosphere. For reduction of palladium ions to metallic state as prepared materials were treated by hydrogen at high temperature. In this work the locations of palladium atoms in silica lattice were considered by study of binding energy changes of cardinal atoms of mesoporous ordered silica. Ordered mesoporous silicates (MCM-41 and SBA-15) are very promising materials for a wide range of industrial applications due to their unique properties as well-defined ordered structure and excellent textural properties. They exhibit high surface area with high pore volume. Such supports ensure a high dispersion of the metal nanoparticles or other active phases providing the high activity of solid catalysts. The obtained materials were characterized primarily by X-ray diffraction (XRD) technique, X-ray photoelectron spectroscopy (XPS), nitrogen adsorption-desorption isotherms, and infrared spectroscopy. The proportional content of palladium was controlled by X-ray fluorescence technique.

Zienkiewicz-Strza?ka, M.; Pikus, S.

2012-11-01

484

Self-assembled monolayer-enhanced hydrogen sensing with ultrathin palladium films  

NASA Astrophysics Data System (ADS)

Resistive-type palladium structures for hydrogen sensing remains as a research focus for their simplicity in device construction. We demonstrate that a siloxane self-assembled monolayer placed between a substrate and an evaporated ultrathin Pd film promotes the formation of small Pd nanoclusters and reduces the stiction between the palladium and the substrate. The resulting Pd nanocluster film can detect 2%H2 with a rapid response time of ˜70ms and is sensitive to 25 ppm hydrogen, detectable by a 2% increase in conductance due to the hydrogen-induced palladium lattice expansion.

Xu, T.; Zach, M. P.; Xiao, Z. L.; Rosenmann, D.; Welp, U.; Kwok, W. K.; Crabtree, G. W.

2005-05-01

485

Colourimetric and fluorescent probes for the optical detection of palladium ions.  

PubMed

In recent years, the development of optical probes to analyse trace palladium ions (Pd(2+)) has attracted great attention because of the residual palladium released by catalytic converters or from various Pd-catalysed reactions. These residual palladium ions may cause potential health hazards. This review provides a brief introduction to the new methods used to determine trace amounts of Pd(2+), which then mainly focuses on the different reporting systems and unique mechanisms of the colourimetric and fluorescent probes used to detect Pd(2+), including Pd(2+) complex formation or Pd-catalysed reactions. PMID:23845987

Li, Honglin; Fan, Jiangli; Peng, Xiaojun

2013-10-01

486

Behavior of palladium-copper catalysts for CO and NO elimination  

SciTech Connect

The behavior of a series of palladium and palladium-copper catalysts supported on ceria/alumina for the CO + NO + O{sub 2} reaction has been analyzed by a combination of electron transmission microscopy, infrared, and electron paramagnetic spectroscopies and catalytic test studies. In both systems, the catalytic behavior is dominated by the properties of the metal-ceria interface. The addition of copper to a palladium system leads to beneficial effects related to alloy formation in which both CO and NO elimination are enhanced. The chemical consequences and catalytic implications of Pd-Cu alloying are discussed.

Fernandez-Garcia, M.; Martinez-Arias, A.; Belver, C.; Anderson, J.A.; Conesa, J.C.; Soria, J.

2000-03-10

487

Electromigration and Diffusion of Hydrogen in Palladium Defected by Cold Rolling  

NASA Astrophysics Data System (ADS)

Influence of defects induced by cold rolling on hydrogen electromigration in palladium was investigated. It was found that the obtained results can not be explained by means of the occurrence of only one (interstitial) diffusion mechanism. However, accepting the assumption that in the process of hydrogen electromigration in defected palladium there appear two mechanisms of diffusion, that is interstitial (i) and interstitial-defective (i-d), that describe the experimentally obtained dependences well enough. In order to determine the influence of kinds of defects and their concentration on hydrogen electromigration, examination of changes in positron lifetimes and electric resistance in dependence on the degree of cold working on palladium were additionally conducted.

Szatanik, R.; Pietrzak, R.

2005-01-01

488

Encapsulation of palladium crystallites in carbon and the formation of wormlike nanostructures  

SciTech Connect

This note reports the successful inclusion of cubic palladium crystals inside giant carbon clusters and the formation of novel wormlike carbon nanostructures (nanoworms). The head of the [open quotes]worm[close quotes] typically 20-50 nm in diameter, consists of palladium encapsulated in carbon, and the body of the [open quotes]worm[close quotes] several hundred nanometers in length, consists of many sections of carbon tubes with cone-shaped internal voids. The technique used to generate carbon-encapsulated palladium is the electric arc method. 17 refs., 3 figs.

Wang, Y. (DuPont Company, Wilmington, DE (United States))

1994-01-12

489

Polymer-coated palladium nanoparticle catalysts for Suzuki coupling reactions.  

PubMed

A set of seven different palladium nanoparticle (PdNP) systems stabilized by small amounts (1.0mg/mL) of structurally related macromolecular capping agents were comparatively tested as catalyst in p-nitrophenol (Nip) reduction and Suzuki cross-coupling reactions. The observed rate constants (kobs) for Nip reduction were in the range of 0.052-3.120×10(-2)s(-1), and the variation reflected the effects of polymer chain conformation, ionic strength and palladium-polymer complex coordination. Macromolecules featuring pendant pyridyl moieties or inverse temperature-dependent solubility were found to be unsuitable capping agents for PdNPs catalysts, despite being active. The catalytic activity in Suzuki cross-coupling reactions followed the same behavior; the most active particles in the Nip reaction also mediated the cross-coupling reaction providing the expected products in quantitative yields under relatively mild conditions after only 4h at 50°C. Experiments involving the successive addition of reactants and catalyst recovery/re-use indicated that the recycling potential was comparable to those of the standards used in this field. PMID:25463188

Bortolotto, Tanize; Facchinetto, Sara Elisa; Trindade, Suelen Gauna; Ossig, Andreia; Petzhold, Cesar Liberato; Vargas, Josimar; Rodrigues, Oscar Endrigo Dorneles; Giacomelli, Cristiano; Schmidt, Vanessa

2015-02-01

490

Synthetic strategies for controlling inter- and intramolecular interactions: Applications in single-molecule fluorescence imaging, bioluminescence imaging, and palladium catalysis  

NASA Astrophysics Data System (ADS)

The field of synthetic organic chemistry has reached such maturity that, with sufficient effort and resources, the synthesis of virtually any small molecule which exhibits reasonable stability at room temperature can be realized. While representing a monumental achievement for the field, the ability to exert precise control over molecular structure is just a means to an end, and it is frequently the responsibility of the synthetic chemist to determine which molecules should actually be synthesized. For better or worse, there exists no competitive free market in academia for new molecules, and as a result, the decision of which compounds should be synthesized is seldom driven by the forces of supply and demand; rather, it is guided by the synthetic chemist's interest in an anticipated structure-function relationship or in the properties of a previously unstudied class of molecules. As a consequence, there exists a pervasive need for chemists with synthetic expertise in fields (e.g., molecular imaging) and subdisciplines of chemistry (e.g., physical chemistry) in which the identification of promising synthetic targets dramatically outpaces the synthetic output in that field or subdiscipline, and ample opportunities are available for synthetic chemists who choose to pursue such cross-disciplinary research. This thesis describes synthetic efforts that leverage these opportunities to realize applications in biological imaging and in palladium catalysis. In Part I, the synthesis and characterization of three novel luminophores and their imaging applications are discussed. The first is a molecular beacon that utilizes a fluorophorefluorophore pair which exhibits H-dimer quenching in the closed conformation. This probe offers several advantages over conventional fluorophore-quencher molecular beacons in the detection of oligonucleotides, both in bulk and at the single-molecule level. Secondly, a fluorescent, Cy3-Cy5 covalent heterodimer is reported, which on account of the proximity of the Cy3 and Cy5 fluorophores, behaves as an optical photoswitch in the presence of a thiol reagent. This unique property was employed to achieve sub-diffraction-limited imaging of the stalks of Caulobacter crescentus cells with 30-nm resolution using STORM (stochastic optical reconstruction microscopy). Lastly, the synthesis of the first selenium analogue of firefly luciferin is described, and this analogue is shown to be a competent substrate for firefly luciferase (fLuc). Remarkably, it exhibits red-shifted bioluminescence emission relative to the native sulfur analogue. The in vivo performance of the selenium and sulfur analogues in imaging are compared by tail-vein injection into nude mice bearing subcutaneous tumor xenografts of a human breast cancer cell line that was stably transduced to express fLuc. Part II of this thesis begins by addressing design considerations in the development of palladium catalysts that effect oxidative transformations under mild conditions (i.e., 1 atm air, room temperature) using molecular oxygen as the terminal oxidant. A newly synthesized cationic palladium complex, [(2,9-dimethylphenanthroline)Pd(OAc)]2[OTf]2, is shown to catalyze aerobic alcohol oxidation under such conditions with an unprecedented initial turnover frequency, but the presence of partially reduced oxygen species results in competitive ligand oxidation with concomitant decrease in catalyst activity. To remedy this, oxidatively resistant ligands, which are essential for the development of next-generation, high-turnover-frequency palladium catalysts that utilize oxygen as a terminal oxidant, have been prepared and effectively employed. In addition, the first general palladium-catalyzed route to the carbonylation of diols is reported. In this system, carbon monoxide (1 atm) serves the carbonyl source, (2,9-dimethylphenanthroline)Pd(OAc) 2 acts as the catalyst, and N-chlorosuccinimide and iodosobenzene are the oxidants for 1,2- and 1,3-diols, respectively. This thesis illustrates the power of synthetic organic chemistry to exert precise control ove

Conley, Nicholas R.

491

PALLADIUM/COPPER ALLOY COMPOSITE MEMBRANES FOR HIGH TEMPERATURE HYDROGEN SEPARATION  

SciTech Connect

This report summarizes progress made during the first year of research funding from DOE Grant No. DE-FG26-03NT41792 at the Colorado School of Mines. The period of performance was September 1, 2003 through August of 2004. Composite membranes, consisting of a thin Pd alloy film supported on a porous substrate have been investigated as a means of reducing the membrane cost and improving H{sub 2} flux. An electroless plating technique was utilized to deposit subsequent layers of palladium and copper over zirconia and alumina-based microfilters. The composite membranes thus made were annealed and tested at temperatures ranging from 250 to 500 C, under very high feed pressures (up to 450 psig) using pure gases and gaseous mixtures containing H{sub 2}, CO, CO{sub 2}, H{sub 2}O and H{sub 2}S, with the purpose of determining the effects these variables had on the H{sub 2} permeation rate, selectivity and percent recovery. The inhibition caused by CO/CO{sub 2} gases on a 7 {micro}m thick Pd-Cu composite membrane was less than 17% over a wide range of compositions at 350 C. H{sub 2}S caused a strong inhibition of the H{sub 2} flux of the same Pd-Cu composite membrane, which is accentuated at levels of 100 ppm or higher. The membrane was exposed to 50 ppm three times without permanent damage. At higher H{sub 2}S levels, above 100 ppm the membrane suffered some physical degradation and its performances was severely affected. The use of sweep gases improved the hydrogen flux and recovery of a Pd-Cu composite membrane. Recently, we have been able to dramatically reduce the thickness of these Pd alloy membranes to approximately one micron. This is significant because at this thickness, it is the cost of the porous support that controls the materials cost of a composite Pd alloy membrane, not the palladium inventory. Very recent results show that the productivity of our membranes is very high, essentially meeting the DOE pure hydrogen flux target value set by the DOE Hydrogen Program. These results were obtained when a 1.3-micron-thick Pd{sub 95}Cu{sub 5} (composition given in mass %) alloy film was coated on a Pall Corporation Membralox{reg_sign} T1-70 tubular ceramic substrate. The flux of this membrane would be even higher if the alloy composition was 40 wt. % Cu.

J. Douglas Way

2004-08-31

492

Surfactant gel adsorption of platinum(II), (IV) and palladium(II) as chloro-complexes and kinetic separation of palladium from platinum using EDTA.  

PubMed

A micellar solution of cetylpyridinium chloride (CPC) can separate into two phases due to a temperature change or to the addition of salts. Platinum(II), (IV) and palladium(II) reacted with chloride ions to form stable anionic complexes of PtCl4(2-), PtCl6(2-) and PdCl4(2-), respectively, and were adsorbed onto the CPC gel phase. The CPC phase plays the role of an ion-exchange adsorbent for the anionic complexes. By such a procedure, the precious metals of platinum and palladium could be separated from base metals such as copper, zinc and iron. The kinetic separation was performed by a ligand exchange reaction of the palladium(II) chloro-complex with EDTA at 60 degrees C. The anionic palladium(II)-EDTA complex could not bind the opposite charged CP+ and was desorbed from the CPC phase. In the aqueous phase, the recovery of palladium(II) by the double-desorption was 101.1 +/- 1.2%. The platinum(II) and (IV) chloro-complexes were stable for at least 30 min and remained in the CPC phase. PMID:17878594

Murakami, Yoshiko; Hiraiwa, Kaoru; Sasaki, Yoshiaki; Fujiwara, Isamu; Tagashira, Shoji

2007-09-01

493

Decreased tumorigenesis in mice with a Kras point mutation at C118.  

PubMed

KRAS, NRAS or HRAS genes are mutated to encode an active oncogenic protein in a quarter of human cancers. Redox-dependent reactions can also lead to Ras activation in a manner dependent upon the thiol residue of cysteine 118 (C118). Here, to investigate the effect of mutating this residue on tumorigenesis, we introduce a C118S mutation into the endogenous murine Kras allele and expose the resultant mice to the carcinogen urethane, which induces Kras mutation-positive lung tumours. We report that Kras(+/C118S) and Kras(C118S/C118S) mice develop fewer lung tumours. Although the Kras(C118S) allele does not appear to affect tumorigenesis when the remaining Kras allele is conditionally oncogenic, there is a moderate imbalance of oncogenic mutations favouring the native Kras allele in tumours from Kras(+/C118S) mice treated with urethane. We conclude that the Kras(C118S) allele impedes urethane-induced lung tumorigenesis. PMID:25394415

Huang, Lu; Carney, John; Cardona, Diana M; Counter, Christopher M

2014-01-01

494

Palladium-catalyzed C-C, C-N and C-O bond formation  

E-print Network

New methods for Pd-catalyzed cross-coupling reactions of aryl halides or arenesulfonates are described. Key to the success of these transformations is the proper choice of ligand and reaction conditions. Palladium catalysts ...

Huang, Xiaohua, 1973-

2003-01-01

495

Low-temperature carbon monoxide oxidation catalysed by regenerable atomically dispersed palladium on alumina  

NASA Astrophysics Data System (ADS)

Catalysis by single isolated atoms of precious metals has attracted much recent interest, as it promises the ultimate in atom efficiency. Most previous reports are on reducible oxide supports. Here we show that isolated palladium atoms can be catalytically active on industrially relevant ?-alumina supports. The addition of lanthanum oxide to the alumina, long known for its ability to improve alumina stability, is found to also help in the stabilization of isolated palladium atoms. Aberration-corrected scanning transmission electron microscopy and operando X-ray absorption spectroscopy confirm the presence of intermingled palladium and lanthanum on the ?-alumina surface. Carbon monoxide oxidation reactivity measurements show onset of catalytic activity at 40?°C. The catalyst activity can be regenerated by oxidation at 700?°C in air. The high-temperature stability and regenerability of these ionic palladium species make this catalyst system of potential interest for low-temperature exhaust treatment catalysts.

Peterson, Eric J.; Delariva, Andrew T.; Lin, Sen; Johnson, Ryan S.; Guo, Hua; Miller, Jeffrey T.; Hun Kwak, Ja; Peden, Charles H. F.; Kiefer, Boris; Allard, Lawrence F.; Ribeiro, Fabio H.; Datye, Abhaya K.

2014-09-01

496

Low-temperature carbon monoxide oxidation catalysed by regenerable atomically dispersed palladium on alumina.  

PubMed

Catalysis by single isolated atoms of precious metals has attracted much recent interest, as it promises the ultimate in atom efficiency. Most previous reports are on reducible oxide supports. Here we show that isolated palladium atoms can be catalytically active on industrially relevant ?-alumina supports. The addition of lanthanum oxide to the alumina, long known for its ability to improve alumina stability, is found to also help in the stabilization of isolated palladium atoms. Aberration-corrected scanning transmission electron microscopy and operando X-ray absorption spectroscopy confirm the presence of intermingled palladium and lanthanum on the ?-alumina surface. Carbon monoxide oxidation reactivity measurements show onset of catalytic activity at 40 °C. The catalyst activity can be regenerated by oxidation at 700 °C in air. The high-temperature stability and regenerability of these ionic palladium species make this catalyst system of potential interest for low-temperature exhaust treatment catalysts. PMID:25222116

Peterson, Eric J; DeLaRiva, Andrew T; Lin, Sen; Johnson, Ryan S; Guo, Hua; Miller, Jeffrey T; Hun Kwak, Ja; Peden, Charles H F; Kiefer, Boris; Allard, Lawrence F; Ribeiro, Fabio H; Datye, Abhaya K

2014-01-01

497

Gold-promoted structurally ordered intermetallic palladium cobalt nanoparticles for the oxygen reduction reaction  

NASA Astrophysics Data System (ADS)

Considerable efforts to make palladium and palladium alloys active catalysts and a possible replacement for platinum have had a marginal success. Here we report on a structurally ordered Au10Pd40Co50 catalyst that exhibits comparable activity to conventional platinum catalysts in both acid and alkaline media. Electron microscopic techniques demonstrate that, at elevated temperatures, palladium cobalt nanoparticles undergo an atomic structural transition from core-shell to a rare intermetallic ordered structure with twin boundaries forming stable {111}, {110} and {100} facets via addition of gold atoms. The superior stability of this catalyst compared with platinum after 10,000 potential cycles in alkaline media is attributed to the atomic structural order of PdCo nanoparticles along with protective effect of clusters of gold atoms on the surface. This strategy of making ordered palladium intermetallic alloy nanoparticles can be used in diverse heterogeneous catalysis where particle size and structural stability matter.

Kuttiyiel, Kurian A.; Sasaki, Kotaro; Su, Dong; Wu, Lijun; Zhu, Yimei; Adzic, Radoslav R.

2014-11-01

498

Palladium-catalyzed direct ?-arylation of methyl sulfones with aryl bromides.  

PubMed

A direct and efficient approach for palladium-catalyzed arylation of aryl and alkyl methyl sulfones with aryl bromides has been developed. The catalytic system affords arylated sulfones in good to excellent yields (73-90%). PMID:23517309

Zheng, Bing; Jia, Tiezheng; Walsh, Patrick J

2013-04-01

499

Improved dynamics and positional bias with a second generation palladium(II)-complexed molecular shuttle.  

PubMed

A second generation palladium(II)-complexed molecular shuttle, featuring structural changes to the size and shape of the macrocycle, shows significantly increased rates of shuttling and improved co-conformational bias compared to the original system. PMID:20309459

Leigh, David A; Lusby, Paul J; McBurney, Roy T; Symes, Mark D

2010-04-14

500

Recent advances in palladium-catalyzed carbon-carbon and carbon-boron bond forming processes  

E-print Network

Chapter 1. Highly active and efficient catalyst systems derived from palladium precatalysts and monophosphine ligands for the Suzuki-Miyaura cross-coupling reaction of heteroaryl boronic acids and esters has been developed. ...

Billingsley, Kelvin L

2008-01-01