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


1

Method of making alkyl esters  

DOE Patents [OSTI]

Methods of making alkyl esters are described herein. The methods are capable of using raw, unprocessed, low-cost feedstocks and waste grease. Generally, the method involves converting a glyceride source to a fatty acid composition and esterifying the fatty acid composition to make alkyl esters. In an embodiment, a method of making alkyl esters comprises providing a glyceride source. The method further comprises converting the glyceride source to a fatty acid composition comprising free fatty acids and less than about 1% glyceride by mass. Moreover, the method comprises esterifying the fatty acid composition in the presence of a solid acid catalyst at a temperature ranging firm about 70.degree. C. to about 120.degree. C. to produce alkyl esters, such that at least 85% of the free fatty acids are converted to alkyl esters. The method also incorporates the use of packed bed reactors for glyceride conversion and/or fatty acid esterification to make alkyl esters.

Elliott, Brian (Wheat Ridge, CO)

2010-09-14T23:59:59.000Z

2

Methods of making alkyl esters  

DOE Patents [OSTI]

A method comprising contacting an alcohol, a feed comprising one or more glycerides and equal to or greater than 2 wt % of one or more free fatty acids, and a solid acid catalyst, a nanostructured polymer catalyst, or a sulfated zirconia catalyst in one or more reactors, and recovering from the one or more reactors an effluent comprising equal to or greater than about 75 wt % alkyl ester and equal to or less than about 5 wt % glyceride.

Elliott, Brian (Wheat Ridge, CO)

2010-08-03T23:59:59.000Z

3

Anhydrous aluminum chloride as an alkylation catalyst: identification of mono- and dialkyl-benzenes from the condensation of tertiary butyl alcohol with benzene.  

E-Print Network [OSTI]

LIBRARY a a w c"I. I. SI - O~ TI:YAf ANHYDROUS ALUMINUM CHLORIDE AS AN ALKYLATION CATALYST: IDENTIFICATION OF MONO- AND DIALKYIZENZENES FROM THE CONDENSATION QF TERTIARY BUTYL ALCOHOL WITH BENKENE IACEY EUGENE SCOGGINS 4 A Thesis Submitted...: IDENTIFICATION OF MONO- AND DI~NZZNES FROM THE CONDENSATION OF TERTIARY BUTYL ALCOHOL WITH BENZENE A Thesis By LACEY EUGENE SCOGGINS Approved as to style and content hy: Chairman of Committee Head of Chemistry Department 1959 ACKNOWLEDGME1VTS The author...

Scoggins, Lacey E

1959-01-01T23:59:59.000Z

4

E-Print Network 3.0 - alkyl hydroperoxide reductase Sample Search...  

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

Methyl Esters J. Biet, V. Warth, O. Herbinet* Summary: hydroperoxides methyl esters, acrolein and OH and methyl ester alkyl radicals from unsaturated hydroperoxide... for...

5

alkyl esters perspectives: Topics by E-print Network  

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

Open learner models, communication, multiple users. 1 Introduction Open learner models (OLM) are learner models that are accessible Bull, Susan 422 When quadrangles are completely...

6

alkyl ester salts: Topics by E-print Network  

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

of nutrients and heavy metals in experimental salt marsh ecosystems. Environmental Pollution,effects of nutrients and heavy metals in experimental salt marsh ecosystems....

7

Asymmetric Alkyl?Alkyl Cross-Couplings of Unactivated Secondary Alkyl Electrophiles: Stereoconvergent Suzuki Reactions of Racemic Acylated Halohydrins  

E-Print Network [OSTI]

A method for asymmetric alkyl?alkyl Suzuki reactions of unactivated secondary alkyl electrophiles, specifically, cross-couplings of racemic acylated halohydrins with alkylborane reagents, has been developed. A range of ...

Owston, Nathan A.

8

Synthesis of an acid addition salt of delta-aminolevulinic acid from 5-bromo levulinic acid esters  

DOE Patents [OSTI]

A process is disclosed for preparing an acid addition salt of delta-aminolevulinic acid comprising. The process involves dissolving a lower alkyl 5-bromolevulinate and an alkali metal diformylamide in an organic solvent selected from the group consisting of acetonitrile, methanol, tetrahydrofuran, 2-methyltetrahydrofuran and methylformate or mixtures to form a suspension of an alkyl 5-(N,N-diformylamino) levulinate ester; and hydrolyzing the alkyl 5-(N,N-diformylamino) levulinate with an inorganic acid to form an acid addition salt of delta-amino levulinic acid.

Moens, L.

1999-05-25T23:59:59.000Z

9

Synthesis of an acid addition salt of delta-aminolevulinic acid from 5-bromo levulinic acid esters  

DOE Patents [OSTI]

A process of preparing an acid addition salt of delta-aminolevulinic acid comprising: dissolving a lower alkyl 5-bromolevulinate and an alkali metal diformylamide in an organic solvent selected from the group consisting of acetonitrile, methanol, tetrahydrofuran, 2-methyltetrahydrofuran and methylformate or mixtures thereof to form a suspension of an alkyl 5-(N,N-diformylamino) levulinate ester; and hydrolyzing said alkyl 5-(N,N-diformylamino) levulinate with an inorganic acid to form an acid addition salt of delta-amino levulinic acid.

Moens, Luc (Lakewood, CO)

1999-01-01T23:59:59.000Z

10

Mono(cycloheptatrienyl) Tantalum Chemistry: Synthesis and Characterization of New Tantalum Halide, Hydride, and Alkyl Species  

E-Print Network [OSTI]

that afford pure tantalum thin films by chemical vapor deposition (CVD). In commercially availablemetal-organicsources,suchastheimideTa(NEt is formally in the zero oxidation state, and conversion to the metal can be envisaged as involving simple, F. J. Vac. Sci. Technol., B 2000, 18, 2016­2020. (3) Park, J. S.; Park, H. S.; Kang, S. W. J

Girolami, Gregory S.

11

Alkylate  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecemberSteam Coal Import CostsLiquidsYear JanYear Jan Feb Mar

12

Alkylation of organic aromatic compounds  

DOE Patents [OSTI]

Aromatic compounds are alkylated in a combination reactor/distillation column comprising a vessel suitable for operating between 70.degree. C. and 500.degree. C. and from 0.5 to 20 atmospheres pressure; an inert distillation packing in the lower one-third of said vessel; solid acidic catalytic material such as zeolites or an acidic cation exchange resin supported in the middle one-third of said vessel; and inert distillation packing in the upper one-third of said vessel. A benzene inlet is located near the upper end of the vessel; an olefin inlet is juxtaposed with said solid acidic catalytic material; a bottoms outlet is positioned near the bottom of said vessel for removing said cumene and ethyl benzene; and an overhead outlet is placed at the top of said vessel for removing any unreacted benzene and olefin.

Smith, Jr., Lawrence A. (Bellaire, TX); Arganbright, Robert P. (Seabrook, TX); Hearn, Dennis (Houston, TX)

1993-01-01T23:59:59.000Z

13

Alkylation of organic aromatic compounds  

DOE Patents [OSTI]

Aromatic compounds are alkylated in a combination reactor/distillation column comprising a vessel suitable for operating between 70 C and 500 C and from 0.5 to 20 atmospheres pressure; an inert distillation packing in the lower one-third of said vessel; solid acidic catalytic material such as zeolites or an acidic cation exchange resin supported in the middle one-third of said vessel; and inert distillation packing in the upper one-third of said vessel. A benzene inlet is located near the upper end of the vessel; an olefin inlet is juxtaposed with said solid acidic catalytic material; a bottoms outlet is positioned near the bottom of said vessel for removing said cumene and ethyl benzene; and an overhead outlet is placed at the top of said vessel for removing any unreacted benzene and olefin.

Smith, L.A. Jr.; Arganbright, R.P.; Hearn, D.

1993-01-05T23:59:59.000Z

14

acid mono-2-ethylhexyl ester: Topics by E-print Network  

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

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 181 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

15

E-Print Network 3.0 - alkyl halide transfer Sample Search Results  

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

alkyl halide, resulting... of the nucleophilic substitution and reduction reactions of iPr-LAB with alkyl halides. Ab initio and density... of alkyl halide by hydride. ......

16

Low-temperature emission spectra of 9-alkylanthracene esters: Dimer photodecomposition and monomer pair interactions in polymer hosts  

SciTech Connect (OSTI)

Effects due to variation in the alkyl chain length of photodimers of 9-alkylanthracene esters on their photodecomposition efficiencies at 12 K and, by implication, the photoproduct migration as a function of temperature within polymer hosts are investigated. It is shown that dimers with longer alkyl chains have a lower photodecomposition efficiency. The extent of photoproduct migration within the polymer following photodecomposition was also studied as a function of alkyl chain length. This migration and its modulation of the interaction between the separating monomers is shown to affect the emission spectrum. Thus, monomer migration was studied in temperature cycling experiments. It was also found, for the polymer hosts investigated - poly(methyl methacrylate), poly(vinyl chloride), and polystyrene - that these properties are host dependent. This result is probably due to the void space differences that exist among these polymers. 17 refs., 10 figs.

Salt, K.; Scott, G.W. (Univ. of California, Riverside, CA (United States))

1994-10-06T23:59:59.000Z

17

Electrochemical method for producing a biodiesel mixture comprising fatty acid alkyl esters and glycerol  

SciTech Connect (OSTI)

The present invention relates to an integrated method and system for the simultaneous production of biodiesel from free fatty acids (via esterification) and from triglycerides (via transesterification) within the same reaction chamber. More specifically, one preferred embodiment of the invention relates to a method and system for the production of biodiesel using an electrodeionization stack, wherein an ion exchange resin matrix acts as a heterogeneous catalyst for simultaneous esterification and transesterification reactions between a feedstock and a lower alcohol to produce biodiesel, wherein the feedstock contains significant levels of free fatty acid. In addition, because of the use of a heterogeneous catalyst, the glycerol and biodiesel have much lower salt concentrations than raw biodiesel produced by conventional transesterification processes. The present invention makes it much easier to purify glycerol and biodiesel.

Lin, YuPo J; St. Martin, Edward J

2013-08-13T23:59:59.000Z

18

E-Print Network 3.0 - acid alkyl esters Sample Search Results  

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

Nitric Acid 34. Sulfuric acid... .5 will not be accepted through this program. Heavy metal, toxic, acidic (without solvents) and basic wastes should... . Mercaptans 4. ......

19

Inductive Effect of Alkyl Chains on Alcohol Dehydration at Bridge...  

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

Inductive Effect of Alkyl Chains on Alcohol Dehydration at Bridge-Bonded Oxygen Vacancies of TiO2(110). Inductive Effect of Alkyl Chains on Alcohol Dehydration at Bridge-Bonded...

20

Enhancement of alkylation catalysts for improved supercritical fluid regeneration  

DOE Patents [OSTI]

A method of modifying an alkylation catalyst to reduce the formation of condensed hydrocarbon species thereon. The method comprises providing an alkylation catalyst comprising a plurality of active sites. The plurality of active sites on the alkylation catalyst may include a plurality of weakly acidic active sites, intermediate acidity active sites, and strongly acidic active sites. A base is adsorbed to a portion of the plurality of active sites, such as the strongly acidic active sites, selectively poisoning the strongly acidic active sites. A method of modifying the alkylation catalyst by providing an alkylation catalyst comprising a pore size distribution that sterically constrains formation of the condensed hydrocarbon species on the alkylation catalyst or by synthesizing the alkylation catalyst to comprise a decreased number of strongly acidic active sites is also disclosed, as is a method of improving a regeneration efficiency of the alkylation catalyst.

Ginosar, Daniel M. (Idaho Falls, ID); Petkovic, Lucia M. (Idaho Falls, ID)

2010-12-28T23:59:59.000Z

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


21

Catalytic, Enantioselective Alkylations of N,O-Acetals  

E-Print Network [OSTI]

, 10998-10999. (2) Hoveyda et al. have developed a Ni-catalyzed alkylation reaction of allylic acetalsCatalytic, Enantioselective Alkylations of N,O-Acetals Dana Ferraris, Travis Dudding, Brandon Young alkylation reactions of acetals have attained a prominent position in organic synthesis.1 Methods employing

Lectka, Thomas

22

Catalytic Synthesis of n-Alkyl Arenes through Alkyl Group Cross-Metathesis  

E-Print Network [OSTI]

n-Alkyl arenes were prepared in a one-pot tandem dehydrogenation/olefin metathesis/hydrogenation sequence directly from alkanes and ethylbenzene. Excellent selectivity was observed when (tBuPCP)IrH[subscript 2] was paired ...

Dobereiner, Graham E.

23

acids mono 2ethylhexyl: Topics by E-print Network  

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

coated with thin films of nanoporous titanium; continuous-flow photocatalytic reactor; electrodeless discharge lamp; mono-chloroacetic acid; nanoporous Cirkva, Vladimir 350...

24

Mono inverter Multi parallel PMSM -Structure and Control strategy  

E-Print Network [OSTI]

Mono inverter Multi parallel PMSM - Structure and Control strategy Damien Bidarta , Maria Pietrzak a new and original Mono inverter Multi parallel Permanent Magnet Synchronous Motor (PMSM) system. Experimental results are given for a system with 2 PMSM plugged in parallel. The proposed solution can however

Boyer, Edmond

25

Add MTBE unit ahead of alkylation  

SciTech Connect (OSTI)

Approximately three years ago, the people at Diamond Shamrock's Sunray, Texas, refinery recognized a growing demand for high octane super premium unleaded gasoline in their regional marketing area. It was apparent that they would need to change their processing scheme to meet this growing demand. After investigating several options, they decided to install an MTBE (methyl tert-butyl ether) unit upstream of their existing sulfuric acid (H/sub 2/SO/sub 4/) aklylation unit. The new unit would process olefin feed before it entered the alkylation unit. The MTBE unit was expected to improve Diamond Shamrock's gasoline pool in two ways. First, the MTBE would be an additional high octane blending stock for the gasoline pool. Second, the MTBE unit would improve the quality of the olefin stream going to the alkylation unit. Diamond Shamrock brought their MTBE unit onstream in December, 1985. The results of the combined operation exceeded expectations, producing alkylate in excess of 98 RON (Research octane number) and MTBE of 118 RON. These components significantly upgraded the refinery's capability to produce a super premium unleaded gasoline.

Masters, K.R.; Prohaska, E.A.

1988-08-01T23:59:59.000Z

26

E-Print Network 3.0 - acidmethyl ester concentration Sample Search...  

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

or polymers, which, if in high enough concentration, can... methyl ester (CME) Canola ethyl ester (CEE) Mustard methyl ester (MME) Soy methyl ester (SME... degraded....

27

E-Print Network 3.0 - activated ester terminated Sample Search...  

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

to oxidation, contact with water, andor microbial activity... methyl ester (CME) Canola ethyl ester (CEE) Mustard methyl ester (MME) Soy methyl ester (SME... degraded....

28

A Simple, Accurate Model for Alkyl Adsorption on Late Transition...  

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

on Late Transition Metals. A Simple, Accurate Model for Alkyl Adsorption on Late Transition Metals. Abstract: A simple model that predicts the adsorption energy of an...

29

Method of making a cyanate ester foam  

DOE Patents [OSTI]

A cyanate ester resin mixture with at least one cyanate ester resin, an isocyanate foaming resin, other co-curatives such as polyol or epoxy compounds, a surfactant, and a catalyst/water can react to form a foaming resin that can be cured at a temperature greater than 50.degree. C. to form a cyanate ester foam. The cyanate ester foam can be heated to a temperature greater than 400.degree. C. in a non-oxidative atmosphere to provide a carbonaceous char foam.

Celina, Mathias C.; Giron, Nicholas Henry

2014-08-05T23:59:59.000Z

30

Felix R. Noble Collection Accession # Artist Title Mono/Stereo Label/Cat. # Year  

E-Print Network [OSTI]

:0048 Armstrong, Louis A Remembrance Stereo Columbia 10680 #12;2001:0049 Armstrong, Louis Louis Armstrong Plays W. C. Handy Mono Columbia 591 2001:0050 Armstrong, Louis Satch Plays Fats Mono Columbia 708 2001:0051 Armstrong, Louis Ambassador Satch Mono Columbia 840 1959 2001:0052 Armstrong, Louis I Love Jazz Mono Decca

Li, X. Rong

31

Rheology of silicon carbide/vinyl ester nanocomposites  

E-Print Network [OSTI]

New York, 1999. SILICON CARBIDE/VINYL ESTER NANOCOMPOSITESRheology of Silicon Carbide/Vinyl Ester NanocompositesABSTRACT: Silicon carbide (SiC) nanoparticles with no

Yong, Virginia; Hahn, H. Thomas

2006-01-01T23:59:59.000Z

32

E-Print Network 3.0 - alkylated silicon111 surfaces Sample Search...  

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

13 N-Alkyl-polyethylenimine 2 kDastabilized superparamagnetic iron oxide nanoparticles for MRI cell tracking Summary: N-Alkyl-polyethylenimine 2 kDa-stabilized...

33

E-Print Network 3.0 - alkyl chain bis-quaternary Sample Search...  

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

by alkyl and alkylthiol chains, while in the archipelago model2 aromatic and naphthenic moieties... , the aromatic rings were linked or bridged through alkyl and...

34

Production of methyl tert-alkyl ethers  

SciTech Connect (OSTI)

The transition to the use of unleaded gasolines has required the replacement of tetraethyl lead by oxygen-containing compounds such as methanol, ethanol, and ethers, which are termed {open_quotes}oxygenates{close_quotes} in the technical literature. These may be used in commercial gasolines in amounts of 10-15% by volume, equivalent to 2% oxygen by weight. When methyl tert-butyl ether (MTBE) is used, the oxygen content may amount to 2.7% by weight. This oxygenate gives a significant improvement of knock resistance of naphtha fractions, the greatest effects being observed for straight-run naphthas and reformer naphthas produced under normal conditions; the MTBE also improves the engine power and economy characteristics and lowers the carbon monoxide content in the exhaust by 15-30% and the hydrocarbon content by 7-8%. This paper describes methods for the production of MTBE and also methyl tert-alkyl ethers.

Trofimov, V.A.

1995-01-01T23:59:59.000Z

35

Pairing preferences of the model mono-valence mono-atomic ions investigated by molecular simulation  

SciTech Connect (OSTI)

We carried out a series of potential of mean force calculations to study the pairing preferences of a series of model mono-atomic 1:1 ions with evenly varied sizes. The probabilities of forming the contact ion pair (CIP) and the single water separate ion pair (SIP) were presented in the two-dimensional plots with respect to the ion sizes. The pairing preferences reflected in these plots largely agree with the empirical rule of matching ion sizes in the small and big size regions. In the region that the ion sizes are close to the size of the water molecule; however, a significant deviation from this conventional rule is observed. Our further analysis indicated that this deviation originates from the competition between CIP and the water bridging SIP state. The competition is mainly an enthalpy modulated phenomenon in which the existing of the water bridging plays a significant role.

Zhang, Qiang [State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning (China) [State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning (China); Department of Chemistry, Bohai University, Jinzhou 121000 (China); Zhang, Ruiting; Zhao, Ying; Li, HuanHuan; Zhuang, Wei, E-mail: wzhuang@dicp.ac.cn, E-mail: gaoyq@pku.edu.cn [State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning (China)] [State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning (China); Gao, Yi Qin, E-mail: wzhuang@dicp.ac.cn, E-mail: gaoyq@pku.edu.cn [College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871 (China)

2014-05-14T23:59:59.000Z

36

Process for the preparation of an energetic nitrate ester  

DOE Patents [OSTI]

A process for the preparation of an energetic nitrate ester compound and related intermediates is provided.

Chavez, David E; Naud, Darren L; Hiskey, Michael A

2013-12-17T23:59:59.000Z

37

Extraction of carbonate complexes of trivalent transplutonium elements with alkyl pyrocatechols  

SciTech Connect (OSTI)

Extraction of trivalent americium curium, californium, and europium with a technical mixture of mono-and didecyl pyrocatechols (TAP) in different diluents from carbonate solutions is studied. The influence of various factors (pH, K/sub 2/CO/sub 3/, TAP and metal concentration, phase contact time) on the degree of extraction and separation of the elements is clarified. It is shown that the elements concerned are extracted quantitatively by TAP solution in toluene and cyclohexane in the K/sub 2/CO/sub 3/ concentration range 0.25-1.5 M. A difference is noted in the coefficients of americium and curium distribution when they are extracted with TAP from 0.25 M K/sub 2/CO/sub 3/ solution. The separation coefficients of this pair rise with the pH of the carbonate solution. The separation coefficients of this pair rise with the pH of the carbonate solution. The separation can be improved at the stage of reextraction of the elements with a mixture of K/sub 2/CO/sub 3/ and DTPA or EDTA from alkyl pyrocatechol because the americium and curium reextraction rate constants differ widely. The composition of the compounds in the organic phase based on 4-(..cap alpha..,..cap alpha..-dioctylethyl)pyrocatechol (DOP) is studied by /sup 13/C NMR spectroscopy.

Karalova, Z.K.; Bukina, T.I.; Myasoedov, B.F.; Fedorov, L.A.; Sokolovskii, S.A.

1987-01-01T23:59:59.000Z

38

Saponification rates of esters in aqueous dioxane  

E-Print Network [OSTI]

trimethylacetate Ethyl n-'valerate Ethyl isovalerate Ethyl me thylethyla c e tate Ethyl trimethylacetate k in liter/Cmoles min.) 25? 35? 45? 4.56 9.21 13.6 1.73 3.35 5.56 1.10 2.01 3.50 0.469 0.970 1.51 2.27 4.05 6.65 0.793 1.36 2.18 0.360 0.635 0.............................. .......... 9 Methyl and Ethyl Esters of n-Valeric Acid . . . . 9 Methyl and Ethyl Esters of Isovaleric Acid . . . 10 Methyl and Ethyl Esters of Methylethylacetic A c i d ...................................... 11 Methyl and Ethyl Esters...

Christian, John Donald

1952-01-01T23:59:59.000Z

39

Synthesis of a new energetic nitrate ester  

SciTech Connect (OSTI)

Nitrate esters have been known as useful energetic materials since the discovery of nitroglycerin by Ascanio Sobrero in 1846. The development of methods to increase the safety and utility of nitroglycerin by Alfred Nobel led to the revolutionary improvement in the utility of nitroglycerin in explosive applications in the form of dynamite. Since then, many nitrate esters have been prepared and incorporated into military applications such as double-based propellants, detonators and as energetic plasticizers. Nitrate esters have also been shown to have vasodilatory effects in humans and thus have been studied and used for treatments of ailments such as angina. The mechanism of the biological response towards nitrate esters has been elucidated recently. Interestingly, many of the nitrate esters used for military purposes are liquids (ethylene glycol dinitrate, propylene glycol dinitrate, etc). Pentaerythritol tetranitrate (PETN) is one of the only solid nitrate esters, besides nitrocellulose, that is used in any application. Unfortunately, PETN melting point is above 100 {sup o}C, and thus must be pressed as a solid for detonator applications. A more practical material would be a melt-castable explosive, for potential simplification of manufacturing processes. Herein we describe the synthesis of a new energetic nitrate ester (1) that is a solid at ambient temperatures, has a melting point of 85-86 {sup o}C and has the highest density of any known nitrate ester composed only of carbon, hydrogen, nitrogen and oxygen. We also describe the chemical, thermal and sensitivity properties of 1 as well as some preliminary explosive performance data.

Chavez, David E [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

40

Adsorption of alkyl amides: monolayer structures and mixing behaviour  

E-Print Network [OSTI]

friction in polymer films, particularly in polyethylene and polypropylene. Pure polymers can often be very ‘sticky’ (e.g. as seen in plastic bags). To prevent this tack, alkyl amides, particularly unsaturated amides such as erucamide, are added...

Bhinde, Tej

2011-02-08T23:59:59.000Z

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


41

Final Technical Report [Development of Catalytic Alkylation and Fluoroalkylation Methods  

SciTech Connect (OSTI)

In the early stages of this DOE-funded research project, we sought to prepare and study a well-defined nickel-alkyl complex containing tridentate nitrogen donor ligands. We found that reaction of (TMEDA)NiMe2 (1) with terpyridine ligand cleanly led to the formation of (terpyridyl)NiMe (2), which we also determined to be an active alkylation catalyst. The thermal stability of 2 was unlike that seen for any of the active pybox ligands, and enabled a number of key studies on alkyl transfer reactions to be performed, providing new insights into the mechanism of nickel-mediated alkyl-alkyl cross-coupling reactions. In addition to the mechanistic studies, we showed that the terpyridyl nickel compounds can catalytically cross-couple alkyl iodides in yields up to 98% and bromides in yields up to 46 %. The yields for the bromides can be increased up to 67 % when the new palladium catalyst [(tpy’)Pd-Ph]I is used. The best route to the targeted [(tpy)NiBr] (1) was found to involve the comproportionation reaction of [(dme)NiBr{sub 2}] and [Ni(COD){sub 2}] in the presence of two equivalents of terpyridine. This reaction was driven to high yields of product formation (72 % isolated) by the precipitation of 1 from THF solvent.

Vicic, David A.

2014-05-01T23:59:59.000Z

42

Topological insulating phases in mono and bilayer graphene  

E-Print Network [OSTI]

We analyze the influence of different quadratic interactions giving rise to time reversal invariant topological insulating phases in mono and bilayer graphene. We make use of the effective action formalism to determine the dependence of the Chern Simons coefficient on the different interactions.

Alberto Cortijo; Adolfo G. Grushin; Maria A. H. Vozmediano

2010-11-20T23:59:59.000Z

43

WHAT'S GRAPHENE? Mono or few layers of sp2 bonded  

E-Print Network [OSTI]

WHAT'S GRAPHENE? · Mono or few layers of sp2 bonded carbon atoms in a honeycomb lattice 105cm2/Vs at RT. 1 Due to its unique transport properties, graphene is suitable for implementation sampling (EOS) timeresolved spectroscopy to optically pump and THz probe exfoliated graphene ribbons (GR

Mellor-Crummey, John

44

(Preview Draft) Chapter 5. Water Flows in the Mono Basin  

E-Print Network [OSTI]

of people began a campaign to save a dying lake, taking on not only the City of Los Angeles, but the entire a modeling point of view, Mono Lake is well suited to demonstrate the power of stock and flow modeling. We will be simulating the flows and accumulation of water, so the stock and flow concepts will be easy to understand

Ford, Andrew

45

Determination of Total Lipids as Fatty Acid Methyl Esters (FAME...  

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

will be replaced by an ester bond between the fatty acid and a methyl group, producing methyl esters of the fatty acids (FAME) and free glycerol. 1.4 The FAME are then...

46

Effect of mono-(2-ethylhexyl) phthalate on steroid production of human granulosa cells  

SciTech Connect (OSTI)

The phthalate ester mono-(2-ethylhexyl) phthalate (MEHP) is the active metabolite of di-(2-ethylhexyl) phthalate, a high-production-volume chemical used as a plasticizer and solvent in numerous consumer products. MEHP has been demonstrated to be a reproductive toxicant in rodents decreasing estradiol and progesterone production in preovulatory granulosa cells. In the present study, we examined the effect of MEHP on steroid production of human granulosa-lutein (GL) cells. Human GL cells collected from women undergoing in vitro fertilization were cultured in medium containing FSH, hCG and 8-Br-cAMP, respectively, together with various concentrations of MEHP (0-500 {mu}mol L{sup -1}). After incubation for 48 h estradiol and progesterone were assayed in the spent culture medium. Furthermore, aromatase activity and mRNA levels of GL cells were determined. Basal as well as FSH-, hCG- and 8-Br-cAMP-stimulated estradiol production of GL cells was suppressed by MEHP in a dose-dependent manner (IC{sub 50} = 105 {mu}mol L{sup -1}, 138 {mu}mol L{sup -1}, 49 {mu}mol L{sup -1} and 78 {mu}mol L{sup -1}). Furthermore aromatase activity and mRNA levels were reduced in GL cells cultured with MEHP. In contrast, MEHP did not alter the production of progesterone up to a concentration of 167 {mu}mol L{sup -1}. The present data indicate that MEHP is a specific inhibitor of estradiol production in human GL cells with a post-cAMP site of action. The inhibition of estradiol production obviously results from a reduction of aromatase activity on the transcript level. As the in vitro effective doses of MEHP are within the range of real environmental exposure levels an inhibitory effect on estrogen production in vivo seems to be possi0009b.

Reinsberg, Jochen [Department of Gynecological Endocrinology and Reproductive Medicine, University of Bonn, Sigmund-Freud-Strasse 25, D-53127 Bonn (Germany)], E-mail: jochen.reinsberg@ukb.uni-bonn.de; Wegener-Toper, Petra [Department of Clinical Chemistry and Clinical Pharmacology, University of Bonn, Sigmund-Freud-Strasse 25, D-53127 Bonn (Germany); Ven, Katrin van der; Ven, Hans van der [Department of Gynecological Endocrinology and Reproductive Medicine, University of Bonn, Sigmund-Freud-Strasse 25, D-53127 Bonn (Germany); Klingmueller, Dietrich [Department of Clinical Chemistry and Clinical Pharmacology, University of Bonn, Sigmund-Freud-Strasse 25, D-53127 Bonn (Germany)

2009-08-15T23:59:59.000Z

47

Alkyl phospholipid antihypertensive agents in method of lowering blood pressure  

DOE Patents [OSTI]

The composition of this invention is 1-O-alkyl-2-acetoyl-sn-glycero-3-phosphocholine, having the ionic structural formula; ##STR1## wherein R is saturated alkyl having 9-21 carbon atoms, or salts or hydrates of the composition. Preferably R has 13-19 carbon atoms and most preferably R has 15 carbon atoms. The composition of this invention is useful for reducing hypertension in warm-blooded animals, including humans, when administered either orally or by injection or innoculation, e.g., intravenous injection. The composition can be prepared from naturally occurring lipids or synthetically from commercially available material.

Snyder, Fred L. (Oak Ridge, TN); Blank, Merle L. (Oak Ridge, TN); Muirhead, Ernest E. (Memphis, TN); Leach, deceased, Byron E. (late of Memphis, TN); Byers, Lawrence W. (Memphis, TN)

1988-01-01T23:59:59.000Z

48

E-Print Network 3.0 - aliphatic alkyl quaternaries Sample Search...  

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

of this alkylation reaction can also be catalyzed by chiral titanate complexes2-4 (e.g., TAD- DOLs2 and chiral... with various substrates. This alkylation approach provides a...

49

E-Print Network 3.0 - alkylated aromatics Sample Search Results  

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

of this alkylation reaction can also be catalyzed by chiral titanate complexes2-4 (e.g., TAD- DOLs2 and chiral... with various substrates. This alkylation approach provides a...

50

Alcohol Chemistry on Rutile TiO2(110): The Influence of Alkyl...  

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

Alcohol Chemistry on Rutile TiO2(110): The Influence of Alkyl Substituents on Reactivity and Selectivity. Alcohol Chemistry on Rutile TiO2(110): The Influence of Alkyl Substituents...

51

arrhizus ethyl esters: Topics by E-print Network  

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

1. Introduction Biodiesel, consisting of the methyl or ethyl ester of fatty acids with biodiesel. To the extent that these deal with biodiesel from virgin vegetable fatty acids,...

52

Ester, Alaska: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It isInformationexplains a4 Climate Zone Subtype A.Essex is aEster,

53

Preparation of .alpha.,.beta.-unsaturated carboxylic acids and esters  

DOE Patents [OSTI]

Disclosed is a process for the preparation of .alpha.,.beta.-unsaturated carboxylic acids and esters thereof which comprises contacting formaldehyde or a source of formaldehyde with a carboxylic acid, ester or anhydride in the presence of a catalyst comprising an oxide of niobium.

Gogate, Makarand Ratnakar (Durham, NC); Spivey, James Jerry (Cary, NC); Zoeller, Joseph Robert (Kingsport, TN)

1998-01-01T23:59:59.000Z

54

Preparation of {alpha},{beta}-unsaturated carboxylic acids and esters  

DOE Patents [OSTI]

Disclosed is a process for the preparation of {alpha},{beta}-unsaturated carboxylic acids and esters thereof which comprises contacting formaldehyde or a source of formaldehyde with a carboxylic acid, ester or anhydride in the presence of a catalyst comprising an oxide of niobium.

Gogate, M.R.; Spivey, J.J.; Zoeller, J.R.

1998-09-15T23:59:59.000Z

55

E-Print Network 3.0 - alkyl radicals Sample Search Results  

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

Collection: Chemistry 2 Radicals and Hydroxy Radical Reactions in Troposphere Summary: : Nitrogen dioxide, 17 valence electrons 7. NO 3 : Nitrate radical 8. R CH 2 1;: alkyl...

56

E-Print Network 3.0 - alkylating agent consolidation Sample Search...  

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

Natural Product Leinamycin Summary: , the antitumor natural product leina- mycin (LM) (1, 2) is converted to a potent DNA-alkylating agent via... the sequence specificity...

57

E-Print Network 3.0 - alkylating agents synthesis Sample Search...  

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

Natural Product Leinamycin Summary: , the antitumor natural product leina- mycin (LM) (1, 2) is converted to a potent DNA-alkylating agent via... the sequence specificity...

58

E-Print Network 3.0 - alkylating agents Sample Search Results  

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

Natural Product Leinamycin Summary: , the antitumor natural product leina- mycin (LM) (1, 2) is converted to a potent DNA-alkylating agent via... the sequence specificity...

59

E-Print Network 3.0 - alkylating agents evaluacion Sample Search...  

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

Natural Product Leinamycin Summary: , the antitumor natural product leina- mycin (LM) (1, 2) is converted to a potent DNA-alkylating agent via... the sequence specificity...

60

E-Print Network 3.0 - activated ester self-assembled Sample Search...  

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

ester) Summary: behavior of DNA with the polymer to form self-assembled PHP esterDNA complexes was characterized... 3 and 4). Condensation of Polyanion by...

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


61

E-Print Network 3.0 - acid ester homologs Sample Search Results  

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

acid ester hydrolase from Acetobacter turbidans Jolanda J. Polderman-Tijmes, Peter A. Jekel, Erik J. de... acid ester hydrolase from ... Source: Groningen, Rijksuniversiteit -...

62

E-Print Network 3.0 - acid esters evaluated Sample Search Results  

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

Abstract... This paper describes an exploratory study on the synthesis of fatty acidpotato starch esters using... : potato starch, fatty acid starch esters, starch laurate, ......

63

E-Print Network 3.0 - acetic acid esters Sample Search Results  

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

and plasticized acetate esters were considerably improved... fatty esters (C8C18) of potato starch and corn amylose using fatty acid chlorides and pyridine... exploratory...

64

Nickel-catalyzed Suzuki-Miyaura reactions of unactivated halides with alkyl boranes and planar-chiral borabenzene catalysts for Diels-Alder reactions  

E-Print Network [OSTI]

Part I describes the expansion in scope of a nickel-catalyzed coupling reaction of unactivated alkyl bromides and alkyl boranes to include unactivated alkyl chlorides. The new method is adapted for use outside of a glove ...

Lu, Zhe

2010-01-01T23:59:59.000Z

65

E-Print Network 3.0 - al mono obeso Sample Search Results  

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

obeso Search Powered by Explorit Topic List Advanced Search Sample search results for: al mono obeso Page: << < 1 2 3 4 5 > >> 1 Reproductive biology of Arum italicum (Araceae)...

66

Synthesis of mono-to-multi-layer graphene for transparent electrode applications  

E-Print Network [OSTI]

In this thesis, mono-to-multilayer graphene for transparent electrode applications was synthesized by Atmospheric Pressure Chemical Vapor Deposition (APCVD) and the key factors that determine the electrical and optical ...

Choi, Minseok

2012-01-01T23:59:59.000Z

67

Assembly of carbon nanotubes and alkylated fullerenes: nanocarbon hybrid towards photovoltaic applications  

E-Print Network [OSTI]

Assembly of carbon nanotubes and alkylated fullerenes: nanocarbon hybrid towards photovoltaic and a fullerene (C60) derivative with long alkyl chains was constructed as a donor­acceptor pair for photovoltaics as attractive candidates for the development of light- energy harvesting and photovoltaic materials because

Nabben, Reinhard

68

for the alkylation reaction. We (23) and others (24) observed similar carbon isotope effects in  

E-Print Network [OSTI]

- ination proceeds to yield the alkylation product and a cationic Ru-hydroxo complex 23. Notably, Ru for the regeneration of the Ru-alkenyl species 22. Extensive hydrogen- deuterium exchange between indene and 2 the catalytic conditions. Our catalytic alkylation method exhibits a broad substrate scope, as well as a high

Jacob, Daniel J.

69

Highly ecient kinetic resolution of 2-cyclohexenyl acetate in Pd-catalyzed allylic alkylation  

E-Print Network [OSTI]

Highly ecient kinetic resolution of 2-cyclohexenyl acetate in Pd-catalyzed allylic alkylation James resolution of 2-cyclohexenyl acetate was observed during alkylation. In addition, the reactivity and enantioselectivity showed a strong dependence on the acetate salt with the BSA/MOAc (M=alkali metal) base system

Zhang, Xumu

70

A Practical and Highly Stereoselective Umpolung Alternative to the Alkylation of Chiral Enolates  

E-Print Network [OSTI]

, acetates, carbonates, and epoxides.9,10 Thus, in principle, the displacement reaction of a chiral allyl reactive electrophiles such as methyl, ethyl, and some primary alkyl iodides and benzyl or allyl halides. s-silyl ketene acetals, and s-alkyl electrophiles are poor electrophiles with this method.7,8 In this paper, we

Spino, Claude

71

Geothermal systems of the Mono Basin-Long Valley region, eastern California and western Nevada  

SciTech Connect (OSTI)

The region that includes Mono Basin, Long Valley, the Bridgeport-Bodie Hills area, and Aurora, in eastern California and western Nevada was studied to determine the possible causes and interactions of the geothermal anomalies in the Mono Basin-Long Valley region as a whole. A special goal of the study was to locate possible shallow bodies of magma and to determine their influence on the hydrothermal systems in the region. (ACR)

Higgins, C.T.; Flynn, T.; Chapman, R.H.; Trexler, D.T.; Chase, G.R.; Bacon, C.F.; Ghusn, G. Jr.

1985-01-01T23:59:59.000Z

72

acid methyl esters: Topics by E-print Network  

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

3 (> 170 o C). Each fraction was analyzed composition of fatty acid ethyl esters using gas chromatography (GC). The result showed that the yield medium chain fatty acid ethyl...

73

acid methyl ester: Topics by E-print Network  

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

3 (> 170 o C). Each fraction was analyzed composition of fatty acid ethyl esters using gas chromatography (GC). The result showed that the yield medium chain fatty acid ethyl...

74

Coaxial Mono-Energetic Gamma Generator for Active Interrogation  

SciTech Connect (OSTI)

Compact mono-energetic photon sources are sought for active interrogation systems to detect shielded special nuclear materials in, for example, cargo containers, trucks and other vehicles. A prototype gamma interrogation source has been designed and built that utilizes the 11B(p,gamma)12C reaction to produce 12 MeV gamma-rays which are near the peak of the photofission cross section. In particular, the 11B(p,gamma)12C resonance at 163 kV allows the production of gammas at low proton acceleration voltages, thus keeping the design of a gamma generator comparatively small and simple. A coaxial design has been adopted with a toroidal-shaped plasma chamber surrounding a cylindrical gamma production target. The plasma discharge is driven by a 2 MHz rf-power supply (capable up to 50 kW) using a circular rf-antenna. Permanent magnets embedded in the walls of the plasma chamber generate a multi-cusp field that confines the plasma and allows higher plasma densities and lower gas pressures. About 100 proton beamlets are extracted through a slotted plasma electrode towards the target at the center of the device that is at a negative 180 kV. The target consists of LaB6 tiles that are brazed to a water-cooled cylindrical structure. The generator is designed to operate at 500 Hz with 20 mu s long pulses, and a 1percent duty factor by pulsing the ion source rf-power. A first-generation coaxial gamma source has been built for low duty factor experiments and testing.

Ludewigt, Bernhard A.; Antolak, A.J.; Henestroza, E.; Leitner, M.; Leung, K.-N.; Waldron, W.; Wilde, S.; Kwan, J.W.

2008-08-01T23:59:59.000Z

75

Preparation and recovery of methacrylic acid and its esters  

SciTech Connect (OSTI)

This patent describes a process for the vapor phase catalytic oxydehydrogenation of isobutyric acid or its esters to form methacrylic acid or its esters wherein the gaseous product is condensed and purified. The improvement described here consists of adding to the gaseous product at or about the point of its condensation from 1 to 6000 ppm of a surfactant material selected from the group consisting of an anionic a cationic and non-ionic surfactant.

Frank, P.J.; Hite, J.R.

1986-07-15T23:59:59.000Z

76

MAGNESIUM MONO POTASSIUM PHOSPHATE GROUT FOR P-REACTOR VESSEL IN-SITU DECOMISSIONING  

SciTech Connect (OSTI)

The objective of this report is to document laboratory testing of magnesium mono potassium phosphate grouts for P-Reactor vessel in-situ decommissioning. Magnesium mono potassium phosphate cement-based grout was identified as candidate material for filling (physically stabilizing) the 105-P Reactor vessel (RV) because it is less alkaline than portland cement-based grout (pH of about 12.4). A less alkaline material ({<=} 10.5) was desired to address a potential materials compatibility issue caused by corrosion of aluminum metal in highly alkaline environments such as that encountered in portland cement grouts. Information concerning access points into the P-Reactor vessel and amount of aluminum metal in the vessel is provided elsewhere. Fresh and cured properties were measured for: (1) commercially blended magnesium mono potassium phosphate packaged grouts, (2) commercially available binders blended with inert fillers at SRNL, (3) grouts prepared from technical grade MgO and KH{sub 2}PO{sub 4} and inert fillers (quartz sands, Class F fly ash), and (4) Ceramicrete{reg_sign} magnesium mono potassium phosphate-based grouts prepared at Argonne National Laboratory. Boric acid was evaluated as a set retarder in the magnesium mono potassium phosphate mixes.

Langton, C.; Stefanko, D.

2011-01-05T23:59:59.000Z

77

E-Print Network 3.0 - alkylations added insight Sample Search...  

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

Natural Product Leinamycin Summary: . In a typical alkylation reaction, a solution of LM (2 L of a 0.5 mM solution in acetonitrile) was added... to achieve efficient reaction....

78

ON-LINE OPTIMIZATION, ENERGY ANALYSIS AND ENVIRONMENTAL IMPACT ASSESSMENT OF SULFURIC ACID CATALYZED ALKYLATION  

E-Print Network [OSTI]

pool, increased amounts of gasoline per volume of crude oil and high heats of combustion. The overall in sulfuric acid consumption potentially could be obtained. 1. Introduction Alkylation process is one

Pike, Ralph W.

79

Intramolecular Heck couplings of unactivated alkyl electrophiles : synthetic and mechanistic studies  

E-Print Network [OSTI]

A method for the palladium-catalyzed intramolecular Heck coupling of unactivated alkyl bromides and chlorides is described. The optimal catalyst system was composed of Pd2(MeO-dba)3 as the metal source and N-heterocyclic ...

Firmansjah, Luke

2007-01-01T23:59:59.000Z

80

Palladium-catalyzed allylic alkylation via decarboxylative and retro-Claisen C-C cleavage methods  

E-Print Network [OSTI]

Presented herein is the development of new methods for Pd-catalyzed allylic alkylation with a central focus on reactions that generate molecular complexity rapidly with little waste byproduct. With this simply stated, yet ...

Grenning, Alexander James

2012-05-31T23:59:59.000Z

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


81

A Mild, Palladium-Catalyzed Method for the Dehydrohalogenation of Alkyl Bromides: Synthetic and Mechanistic Studies  

E-Print Network [OSTI]

We have exploited a typically undesired elementary step in cross-coupling reactions, ?-hydride elimination, to accomplish palladium-catalyzed dehydrohalogenations of alkyl bromides to form terminal olefins. We have applied ...

Bissember, Alex C.

82

E-Print Network 3.0 - asymmetric intramolecular alkylation Sample...  

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

of this alkylation reaction can also be catalyzed by chiral titanate complexes2-4 (e.g., TAD- DOLs2 and chiral... ,2-bis(3,5-dichloro-2-hydroxyben- zenesulfonamido)cyclohexane) for...

83

Electrophilic Metal Alkyl Chemistry in New Ligand Environments  

SciTech Connect (OSTI)

The goals of this project were to design new electrophilic metal alkyl complexes and to exploit these systems in fundamental studies of olefin polymerization and other important and new catalytic reactions. A key target reaction is insertion copolymerization of olefins and polar CH2=CHX vinyl monomers such as vinyl halides and vinyl ethers. During the period covered by this report we (i) investigated the properties of ortho-alkoxy-arylphosphine ligands in Ni-based olefin polymerization catalysts, (ii) studied the synthesis of double-end-capped polyethylene using group 4 metal catalysts that contain tris-pyrazolylborate ligands, (iii) explored the ethylene insertion reactivity of group 4 metal tris-pyrazolyl-borate complexes, (iv) showed that (?-diimine)PdMe{sup +} species undergo multiple insertion of silyl vinyl ethers, (v) synthesized and explored the reactivity of base-free Ni benzyl complexes that contain ortho-phosphino-arene sulfonate ligands, (vi) established the mechanism of the reaction of vinyl chloride with (?-diimine)PdMe{sup +} catalysts, (vii) explored the role of cationic polymerization and insertion chemistry in the reactions of vinyl ethers with (?-diimine)PdMe{sup +} species, (viii) discovered a new class of self-assembled tetranuclear Pd catalysts that produce high molecular weight linear polyethylene and copolymerize ethylene and vinyl fluoride, and (ix) developed model systems that enabled investigation of cis-trans isomerization of {phosphine-sulfonate}Pd(II) complexes.

Jordan, Richard F. [University of Chicago] University of Chicago

2013-06-30T23:59:59.000Z

84

Polyol esters as HFC-134a compressor lubricants  

SciTech Connect (OSTI)

A polyol ester-based lubricant has been applied to HFC-134a household refrigerator compressors, because of its good miscibility with HFC-134a refrigerant, and there is a possibility that it will be applied to automobile air conditions. For better performance, further improvements are needed regarding miscibility, lubricity and chemical stability of the lubricant, because such systems are often used under extreme conditions. This report discusses the required properties and ways to improve performance of polyol esters as HFC-134a compressor lubricants. 7 refs., 14 figs., 4 tabs.

Komatsuzaki, S.; Homma, Y.; Itoh, Y. [Hitachi Ltd. (Japan)] [and others

1994-10-01T23:59:59.000Z

85

E-Print Network 3.0 - acyl-coa esters antagonize Sample Search...  

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

B. Magnetic properties a b s t r a c t FeVinyl ester... surfactant or coupling agent. Vinyl ester monomer serves as a coupling agent with one side covalently bound Source: Guo,...

86

Performance limits of tunnel transistors based on mono-layer transition-metal dichalcogenides  

SciTech Connect (OSTI)

Performance limits of tunnel field-effect transistors based on mono-layer transition metal dichalcogenides are investigated through numerical quantum mechanical simulations. The atomic mono-layer nature of the devices results in a much smaller natural length ?, leading to much larger electric field inside the tunneling diodes. As a result, the inter-band tunneling currents are found to be very high as long as ultra-thin high-k gate dielectric is possible. The highest on-state driving current is found to be close to 600??A/?m at V{sub g}?=?V{sub d}?=?0.5?V when 2?nm thin HfO{sub 2} layer is used for gate dielectric, outperforming most of the conventional semiconductor tunnel transistors. In the five simulated transition-metal dichalcogenides, mono-layer WSe{sub 2} based tunnel field-effect transistor shows the best potential. Deep analysis reveals that there is plenty room to further enhance the device performance by either geometry, alloy, or strain engineering on these mono-layer materials.

Jiang, Xiang-Wei, E-mail: xwjiang@semi.ac.cn; Li, Shu-Shen [State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 (China); Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)

2014-05-12T23:59:59.000Z

87

An angular multigrid method for computing mono-energetic particle beams in Flatland  

E-Print Network [OSTI]

An angular multigrid method for computing mono-energetic particle beams in Flatland Christoph B: Beams of microscopic particles penetrating scattering background matter play an important role in several applications. The parameter choices made here are motivated by the problem of electron-beam cancer

MacLachlan, Scott

88

Effect of Polyethylene Glycol, Alkyl, and Oligonucleotide Spacers on the Binding, Secondary Structure, and Self-Assembly of Fractalkine  

E-Print Network [OSTI]

Effect of Polyethylene Glycol, Alkyl, and Oligonucleotide Spacers on the Binding, Secondary-amphiphiles with no spacer (NoSPR), polyethylene glycol (PEG4, PEG8, PEG24), alkyl (C12 and C24), or oligonucleotide (T10 a polyethylene glycol (PEG) or an oligo-T (thymine) spacer is added to the aptamer, especially when attaching

Kokkoli, Efie

89

COMBUSTION AND FLAME 24, 27-34 (1975) 27 Flame Emission Studies of Ozone with Metal Alkyls  

E-Print Network [OSTI]

COMBUSTION AND FLAME 24, 27-34 (1975) 27 Flame Emission Studies of Ozone with Metal Alkyls: Zn (CH3 of combustion. Premixed [2, 3] anddiffusion [4] flames of metal alkyl compounds have been carried out to deter- tageous to study the combustion of polyatomic molecules under single-collision conditions, i

Zare, Richard N.

90

High-efficiency graphene nanomesh magnets realized by controlling mono-hydrogenation of pore edges  

SciTech Connect (OSTI)

We demonstrate a drastic improvement in the efficiency of rare-element-free graphene nanomesh (GNM) magnets with saturation magnetization values as large as ?10{sup ?4?}emu/mm{sup 2}, which are 10–100 times greater than those in previous GNM magnets hydrogenated by only annealing under a hydrogen molecule (H{sub 2}) atmosphere, even at room temperature. This improvement is realized by a significant increase in the area of the mono-H-terminated pore edges by using hydrogen silsesquioxane resist treatment with electron beam irradiation, which can produce mono-H by detaching H-silicon (Si) bonds. This result must open the door for industrial applications of graphene magnets to rare-element-free magnetic and spintronic systems.

Kato, T.; Kamijyo, J.; Kobayashi, T.; Yagi, Y.; Haruyama, J., E-mail: J-haru@ee.aoyama.ac.jp [Faculty of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258 (Japan); Nakamura, T. [Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)

2014-06-23T23:59:59.000Z

91

Couple Control Model Implementation on Antagonistic Mono- and Bi-Articular Actuators  

E-Print Network [OSTI]

Recently, robot assisted therapy devices are increasingly used for spinal cord injury (SCI) rehabilitation in assisting handicapped patients to regain their impaired movements. Assistive robotic systems may not be able to cure or fully compensate impairments, but it should be able to assist certain impaired functions and ease movements. In this study, a couple control model for lower-limb orthosis of a body weight support gait training system is proposed. The developed leg orthosis implements the use of pneumatic artificial muscle as an actuation system. The pneumatic muscle was arranged antagonistically to form two pair of mono-articular muscles (i.e., hip and knee joints), and a pair of bi-articular actuators (i.e., rectus femoris and hamstring). The results of the proposed couple control model showed that, it was able to simultaneously control the antagonistic mono- and bi-articular actuators and sufficiently performed walking motion of the leg orthosis.

Prattico, Flavio; Yamamoto, Shin-ichiroh

2014-01-01T23:59:59.000Z

92

BWeb Notes for Chapter 5: Water Flows in the Mono Basin  

E-Print Network [OSTI]

BWeb Notes for Chapter 5: Water Flows in the Mono Basin Most of the BWeb notes in chapter 5 refer pages show a photo of me kneeling at the plaque. Other In and Other Out Flows: These flows are listed in Table 5.1. They are assumed to remain constant over time. The Other Out flow is 33.6 KAF/year based

Ford, Andrew

93

SYNTHESE EN FRANAIS TITRE: NEUTRONIC STUDY OF THE MONO-RECYCLING OF AMERICIUM IN PWR  

E-Print Network [OSTI]

AND OF THE CORE CONVERSION IN MNSR USING THE MURE CODE R�SUM� Le code MURE est basé sur le couplage d'un code questions : le mono- recyclage de l'Am dans les réacteurs français de type REP et la conversion du coeur du MNSR (Miniature Neutron Source Reactor) au Ghana d'un combustible à uranium hautement enrichi (HEU

Paris-Sud XI, Université de

94

Syntheses of 11 F-labeled carboxylic esters within a  

E-Print Network [OSTI]

and with reduced infusion rate. Radioactive methyl ester 4b was obtained from the reaction of 1 (10 mM) with 2b in 56% decay-corrected radiochemical yield (RCY) at an infusion rate of 10 mL min21 , and when the infusion rate was reduced to 1 mL min21 , the RCY increased to 88%. The synthesis of the non

Shen, Jun

95

Phosphate ester inhibitors solve naphthenic acid corrosion problems  

SciTech Connect (OSTI)

Crude oils containing naphthenic acids can cause a variety of corrosion problems in any of several process areas. But because of the complexity of naphthenic acid corrosion, no routine technique is available for predicting corrosion from this source. Certain high-temperature corrosion inhibitors with a general phosphate ester structure have shown good mitigation of naphthenic acid corrosion in commercial applications. A description of two such cases will help refiners know what to look for to prevent similar occurrences in their plants.

Babaian-Kibala, E. (Nalco Chemical Co., Sugar Land, TX (United States))

1994-02-28T23:59:59.000Z

96

Gas/particle partitioning of total alkyl nitrates observed with TD-LIF in Bakersfield  

E-Print Network [OSTI]

total AN (gas + aerosol) and ANaer show that on average 21% of ANs are in the condensed phaseGas/particle partitioning of total alkyl nitrates observed with TD-LIF in Bakersfield A. W. Rollins samples. These measurements show that ANs are a ubiquitous component of the OA with the ­ONO2 subunit

Cohen, Ronald C.

97

Electronic desorption of alkyl monolayers from silicon by very highly charged ions  

E-Print Network [OSTI]

-assembled alkyl monolayers SAM on Si 111 .13 AFM images of SAMs after exposure to Xe41 and Au63 show craters ions, like Xe41 and Th73 . Atomic force microscope images show craters from single ion impacts be used to modify surfaces at very low impact energies. Impact energies are limited by the image charge

98

Serendipitous alkylation of a Plk1 ligand uncovers a new binding channel  

E-Print Network [OSTI]

We obtained unanticipated synthetic byproducts from alkylation of the ?[superscript 1] nitrogen (N3) of the histidine imidazole ring of the polo-like kinase-1 (Plk1) polo-box domain (PBD)-binding peptide PLHSpT. For the ...

Lim, Dan

99

Oligonucleoside alkyl or arylphosphonate derivatives capable of crosslinking with or cleaving nucleic acids  

DOE Patents [OSTI]

A composition for inactivating a target nucleic acid which comprises an oligonucleoside alkyl or arylphosphonate analogue which is complementary to the sequence of the target nucleic acid is provided. It includes a functional group which reacts with the target nucleic acid to render the target nucleic acid inactive or nonfunctional. 16 figs.

Miller, P.S.; Ts'o, P.O.P.

1999-06-15T23:59:59.000Z

100

Molecular simulation study of nanoscale friction for alkyl monolayers on Si,,111...  

E-Print Network [OSTI]

. To calculate friction in MD simulations, two Si 111 surfaces coated with the alkyl monolayers were slid against is critical to the design of coatings for microelectromechanical systems. © 2002 American Institute of Physics, such as membranes, gears, motors, pumps and valves.1­3 The integration of miniaturized mechanical components

Zhang, Luzheng

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


101

Oligonucleoside alkyl or arylphosphonate derivatives capable of crosslinking with or cleaving nucleic acids  

DOE Patents [OSTI]

A composition for inactivating a target nucleic acid which comprises an oligonucleoside alkyl or arylphosphonate analogue which is complementary to the sequence of the target nucleic acid and includes a functional group which reacts with the target nucleic acid to render the target nucleic acid inactive or nonfunctional.

Miller, Paul S. (Baltimore, MD); Ts'o, Paul O.P. (Lutherville, MD)

1999-06-15T23:59:59.000Z

102

E-Print Network 3.0 - antiproliferative cephalotaxus esters Sample...  

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

JP, Perchellet EM. Phorbol ester tumor promoters and multistage skin carcinogenesis. ISI Atlas... . Perchellet EM, Gali HU, Gao XM, Perchellet JP. Ability of the nonphorbol...

103

Synthesis and Decarboxylative Coupling of Sulfonyl Acetic Esters  

E-Print Network [OSTI]

-product salts with CO 2 -making it a green alternative. Despite the potential of this methodology, surprisingly, very little 10 was done over the next two decades since Saegusa and Tsuji provided proof of concept. 8 In 2004, 11 Erin Burger, a fellow... the concentration; most of these reactions were run with an initial ester concentration of ~0.1 M. Increasing the reaction concentration to 0.2 M, with respect to substrate, typically results in 23 ~10% higher yields compared to those shown Table 1...

Weaver, Jimmie Dean

2010-04-28T23:59:59.000Z

104

Isotope-specific detection of low density materials with mono-energetic (gamma)-rays  

SciTech Connect (OSTI)

The first demonstration of isotope-specific detection of a low-Z, low density object, shielded by a high-Z and high density material using mono-energetic gamma-rays is reported. Isotope-specific detection of LiH shielded by Pb and Al is accomplished using the nuclear resonance fluorescence line of {sup 7}Li at 0.478 MeV. Resonant photons are produced via laser-based Compton scattering. The detection techniques are general and the confidence level obtained is shown to be superior to that yielded by conventional x-ray/{gamma}-ray techniques in these situations.

Albert, F; Anderson, S G; Gibson, D J; Hagmann, C A; Johnson, M S; Messerly, M J; Semenov, V A; Shverdin, M Y; Tremaine, A M; Hartemann, F V; Siders, C W; McNabb, D P; Barty, C J

2009-03-16T23:59:59.000Z

105

Spin Crossover in a Series of Iron(II) Complexes of 2-(2-Alkyl-2H-tetrazol-5-yl)-1,10-phenanthroline: Effects of Alkyl Side  

E-Print Network [OSTI]

Spin Crossover in a Series of Iron(II) Complexes of 2-(2-Alkyl-2H-tetrazol-5-yl)-1Versity, Beijing 100871, China Received October 27, 2006 2-(2H-Tetrazol-5-yl)-1,10-phenanthroline (HL0 ), its alkyl) at the 2H position of the tetrazole ring, and their iron(II) complexes (a for [Fe(L0 )2], na for [Fe(Ln)2

Gao, Song

106

Synthesis of acid addition salt of delta-aminolevulinic acid from 5-bromo levulinic acid esters  

DOE Patents [OSTI]

A process of preparing an acid addition salt of delta-aminolevulinc acid comprising: a) dissolving a lower alkyl 5-bromolevulinate and hexamethylenetetramine in a solvent selected from the group consisting of water, ethyl acetate, chloroform, acetone, ethanol, tetrahydrofuran and acetonitrile, to form a quaternary ammonium salt of the lower alkyl 5-bromolevulinate; and b) hydrolyzing the quaternary ammonium salt with an inorganic acid to form an acid addition salt of delta-aminolevulinic acid.

Moens, Luc (Lakewood, CO)

2003-06-24T23:59:59.000Z

107

ALKALI – CATALYSED PRODUCTION OF BIODIESEL FUEL FROM NIGERIAN CITRUS SEEDS OIL  

E-Print Network [OSTI]

biodiesel production was investigated. Fatty acid alkyl esters were produced from orange seed oil, grape

unknown authors

108

Solid catalyzed isoparaffin alkylation at supercritical fluid and near-supercritical fluid conditions  

DOE Patents [OSTI]

This invention relates to an improved method for the alkylation reaction of isoparaffins with olefins over solid catalysts including contacting a mixture of an isoparaffin, an olefin and a phase-modifying material with a solid acid catalyst member under alkylation conversion conditions at either supercritical fluid, or near-supercritical fluid conditions, at a temperature and a pressure relative to the critical temperature(T.sub.c) and the critical pressure(P.sub.c) of the reaction mixture. The phase-modifying phase-modifying material is employed to promote the reaction's achievement of either a supercritical fluid state or a near-supercritical state while simultaneously allowing for decreased reaction temperature and longer catalyst life.

Ginosar, Daniel M. (Idaho Falls, ID); Fox, Robert V. (Idaho Falls, ID); Kong, Peter C. (Idaho Falls, ID)

2000-01-01T23:59:59.000Z

109

Alkylation of mixed olefins with isobutane in a stratco chemical reactor  

SciTech Connect (OSTI)

The 17 reaction model for the sulfuric acid alkylation of isobutane with propylene as proposed by Langley and Pike has been used to simulate the effluent refrigeration reactor. The simulation conditions selected to minimize the formation of light and heavy by-product were determined to be: Temperature: 9 - 10 {degrees}C,- Isobutane/Olefin Ratio: 8 - 10; % Volume of Acid: 50 %. The reactor effluent composition from the simulation program has been used to compare with several sets of published data with reasonable agreement. This model has been extrapolated to simulate the alkylation of isobutane with butylenes and amylenes. The model will be optimized with commercial data. 9 refs., 6 figs., 1 tab.

Vichailak, M. [ABB Lummus Global Inc., Houston, TX (United States); Hopper, J.R.; Yaws, C.L. [Lamar Univ., Beaumont, TX (United States); Pike, R.W. [Louisiana State Univ., Baton Rouge, LA (United States)

1996-12-31T23:59:59.000Z

110

Carbon-Oxygen Bond Activation in Esters by Platinum(0): Cleavage of the Less Reactive Bond  

E-Print Network [OSTI]

esters in the presence of trialkylphosphines to give -allyl addition products.2 Acetate and benzoate-O oxidative addition to give -allyl products. Vinyl esters (acetate and benzoate) were also reported of the solution. Reaction with Allyl Acetate. Treatment of 1 with 10 equiv of allyl acetate in p-xylene-d10 at 160

Jones, William D.

111

Combustion chemical kinetics of biodiesel and related compounds (methyl and ethyl esters): Experiments and  

E-Print Network [OSTI]

1 Combustion chemical kinetics of biodiesel and related compounds (methyl and ethyl esters transportation fuel dedicated to the diesel engine, biodiesel, with an emphasis on ethyl esters because of biodiesel and related components, the main gaps in the field are highlighted to facilitate the convergence

Paris-Sud XI, Université de

112

hal-00131838,version1-19Feb2007 Electron states of mono-and bilayer graphene on SiC probed by STM  

E-Print Network [OSTI]

hal-00131838,version1-19Feb2007 Electron states of mono- and bilayer graphene on SiC probed by STM to mono- and bilayer graphene capping a C-rich interface. At low temperature, both terraces show ( 3 × 3 close to the Fermi level. We conclude that the metallic states of the first graphene layer are almost

Paris-Sud XI, Université de

113

Structural Interactions within Lithium Salt Solvates: Cyclic Carbonates and Esters  

SciTech Connect (OSTI)

Only limited information is available regarding the manner in which cyclic carbonate and ester solvents coordinate Li+ cations in electrolyte solutions for lithium batteries. One approach to gleaning significant insight into these interactions is to examine crystalline solvate structures. To this end, eight new solvate structures are reported with ethylene carbonate, ?-butyrolactone and ?-valerolactone: (EC)3:LiClO4, (EC)2:LiClO4, (EC)2:LiBF4, (GBL)4:LiPF6, (GBL)1:LiClO4, (GVL)1:LiClO4, (GBL)1:LiBF4 and (GBL)1:LiCF3SO3. The crystal structure of (EC)1:LiCF3SO3 is also re-reported for comparison. These structures enable the factors which govern the manner in which the ions are coordinated and the ion/solvent packing—in the solid-state—to be scrutinized in detail.

Seo, D. M.; Afroz, Taliman; Allen, Joshua L.; Boyle, Paul D.; Trulove, Paul C.; De Long, Hugh C.; Henderson, Wesley A.

2014-11-13T23:59:59.000Z

114

Quantitative relationships between structure and reactivity of aliphatic esters  

E-Print Network [OSTI]

~rity of' cstor and bsso s~lution (100 nl. ), 0. 02/76 ii &ol~rfty of nixture of' base and ester solution, 0. 01186 '! t, R& "inutco Qhm 1176 1/d x 10 (1/R 1/R ) x 10 1/t (1/2 - 1 ~Rt} x 1(P o 0 0, (~90' 7 9, 0 11. 0 1': 6 Q, ypCQ 1 940 Jg.... 210 1. 1$ 0, y~? -l. r4 0, 215 -O. g Wtc on i'. ethyl a b 0 1' 0. 00 -0. 'V -0, 67 1, 06 -0, 70 -1. 24 -1. 74 -2. 46 -0 69 (n-y) loC ~k 1 ~ 2iFgG 1, 169' d. 87l7 &47100 O. -fPjO 0. 1752 -0. 1700 a b a, :al'erenoe 5', roI'orenoo 9...

Yager, Billy Joe

1960-01-01T23:59:59.000Z

115

Effect of alkyl glycerophosphate on the activation of peroxisome proliferator-activated receptor gamma and glucose uptake in C2C12 cells  

SciTech Connect (OSTI)

Highlights: •Alkyl-LPA specifically interacts with PPAR?. •Alkyl-LPA treatments induces lipid accumulation in C2C12 cells. •Alkyl-LPA enhanced glucose uptake in C2C12 cells. •Alkyl-LPA-treated C2C12 cells express increased amounts of GLUT4 mRNA. •Alkyl-LPA is a novel therapeutic agent that can be used for the treatment of obesity and diabetes. -- Abstract: Studies on the effects of lipids on skeletal muscle cells rarely examine the effects of lysophospholipids. Through our recent studies, we identified select forms of phospholipids, such as alkyl-LPA, as ligands for the intracellular receptor peroxisome proliferator-activated receptor gamma (PPAR?). PPAR? is a nuclear hormone receptor implicated in many human diseases, including diabetes and obesity. We previously showed that alkyl-LPA is a specific agonist of PPAR?. However, the mechanism by which the alkyl-LPA–PPAR? axis affects skeletal muscle cells is poorly defined. Our objective in the present study was to determine whether alkyl-LPA and PPAR? activation promotes glucose uptake in skeletal muscle cells. Our findings indicate that PPAR?1 mRNA is more abundant than PPAR?2 mRNA in C2C12 cells. We showed that alkyl-LPA (3 ?M) significantly activated PPAR? and increased intracellular glucose levels in skeletal muscle cells. We also showed that incubation of C2C12 cells with alkyl-LPA led to lipid accumulation in the cells. These findings suggest that alkyl-LPA activates PPAR? and stimulates glucose uptake in the absence of insulin in C2C12 cells. This may contribute to the plasma glucose-lowering effect in the treatment of insulin resistance.

Tsukahara, Tamotsu, E-mail: ttamotsu@shinshu-u.ac.jp [Department of Integrative Physiology and Bio-System Control, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621 (Japan)] [Department of Integrative Physiology and Bio-System Control, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621 (Japan); Haniu, Hisao [Department of Orthopedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621 (Japan)] [Department of Orthopedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621 (Japan); Matsuda, Yoshikazu [Clinical Pharmacology Educational Center, Nihon Pharmaceutical University, Ina-machi, Saitama 362-0806 (Japan)] [Clinical Pharmacology Educational Center, Nihon Pharmaceutical University, Ina-machi, Saitama 362-0806 (Japan)

2013-04-12T23:59:59.000Z

116

On the semimetal-insulator transition and Lifshitz transition in simulations of mono-layer graphene  

E-Print Network [OSTI]

We report on the status of ongoing Hybrid-Monte-Carlo simulations of the tight-binding model of mono-layer graphene. We present results concerning the semimetal-insulator phase transition, whereby two-body interactions are modeled by a partially screened Coulomb potential which takes into account screening by electrons in the lower $\\sigma$-orbitals. We obtain evidence that finite-size effects may still be present in the current estimate of the critical coupling strength $\\alpha_C$, which was previously extracted from simulations on lattice-sizes up to $N_x=N_y=18$. We also present preliminary results concerning the Neck-disrupting Lifshitz transition which occurs at finite Fermion-density in the limit of vanishing two-body interactions. A sign-problem is circumvented by using a spin-dependent chemical potential in our simulations.

Smith, Dominik; von Smekal, Lorenz

2014-01-01T23:59:59.000Z

117

On the semimetal-insulator transition and Lifshitz transition in simulations of mono-layer graphene  

E-Print Network [OSTI]

We report on the status of ongoing Hybrid-Monte-Carlo simulations of the tight-binding model of mono-layer graphene. We present results concerning the semimetal-insulator phase transition, whereby two-body interactions are modeled by a partially screened Coulomb potential which takes into account screening by electrons in the lower $\\sigma$-orbitals. We obtain evidence that finite-size effects may still be present in the current estimate of the critical coupling strength $\\alpha_C$, which was previously extracted from simulations on lattice-sizes up to $N_x=N_y=18$. We also present preliminary results concerning the Neck-disrupting Lifshitz transition which occurs at finite Fermion-density in the limit of vanishing two-body interactions. A sign-problem is circumvented by using a spin-dependent chemical potential in our simulations.

Dominik Smith; Michael Körner; Lorenz von Smekal

2014-10-28T23:59:59.000Z

118

Interactions between Copper(II) Complexes of Mono-, Bis-, and Tris(macrocyclic) Ligands and Inorganic or Organic Guests  

E-Print Network [OSTI]

FULL PAPER Interactions between Copper(II) Complexes of Mono-, Bis-, and Tris(macrocyclic) Ligands. Prikhod'ko,[b] and Hans Pritzkow[a] Keywords: Copper / Host-guest complexes / Macrocycles / Molecular recognition Template synthesis The copper(II)-assisted condensation of [Cu(2,3,2-tet)]2+ [2,3,2-tet = bis

Nazarenko, Alexander

119

Role of alkyl alcohol on viscosity of silica-based chemical gels for decontamination of highly radioactive nuclear facilities  

SciTech Connect (OSTI)

Silica-based chemical gel for the decontamination of nuclear facilities was prepared by using fumed silica as a viscosifier, a 0.5 M Ce (IV) solution dissolved in concentrated nitric acid as a chemical decontamination agent, and tripropylene glycol butyl ether (TPGBE) as a co-viscosifier. A new effective strategy for the preparation of the chemical gel was investigated by introducing the alkyl alcohols as organic solvents to effectively dissolve the co-viscosifier. The mixture solution of the co-viscosifier and alkyl alcohols was more effective in the control of viscosity than that of the co-viscosifier only in gel. Here, the alkyl alcohols played a key role as an effective dissolution solvent for the co-viscosifier in the preparation of the chemical gel, resulting in a reducing of the amount of the co-viscosifier and gel time compared with that of the chemical gel prepared without the alkyl alcohols. It was considered that the alkyl alcohols contributed to the effective dissolution of the co-viscosifier as well as the homogeneous mixing in the formation of the gel, while the co-viscosifier in an aqueous media of the chemical decontamination agent solution showed a lower solubility. The decontamination efficiency of the chemical gels prepared in this work using a multi-channel analyzer (MCA) showed a high decontamination efficiency of over ca. 94% and ca. 92% for Co-60 and Cs-137 contaminated on surface of the stainless steel 304, respectively. (authors)

Choi, B. S.; Yoon, S. B.; Jung, C. H.; Lee, K. W.; Moon, J. K. [Div. of Decontamination and Decommissioning Technology Development, Korea Atomic Energy Research Inst., Daedeok-daero 989-111, Yuseong-gu, Daejeon, 305-353 (Korea, Republic of)

2012-07-01T23:59:59.000Z

120

Removal patterns of some alkyl phenyl ketones in a heterogeneous bacterial system  

E-Print Network [OSTI]

never lrave been wri t ten, I can only say thank you. TABLE OF CONTENTS pacCe ABSTRACT ACKNONLEDGEMENTS iLIST OF TABLES LIST OF FIGURES SECTION I Introduction and Literature Review SECTION II Apparatus and Materials Reactor Gas Chromatograph... 2 3 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 3 0 Gas Gas Gas Gas Gas Gas Gas Gas Gas hyl Alkyl Gas Gas Gas Gas Chemical Nomenclature Inorganic i'Jutrients Test A. Reactor Conditions Test A...

Salitros, James Joseph

1969-01-01T23:59:59.000Z

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


121

E-Print Network 3.0 - acid 2-benzothiazolylthiomethyl ester Sample...  

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

results for: acid 2-benzothiazolylthiomethyl ester Page: << < 1 2 3 4 5 > >> 1 GTQ, Chemistry 212, Dr. Glaser, FS96 --1 --GTQ on Lactones. (30 points, reaction chem., mechanistic...

122

E-Print Network 3.0 - acetoacetic acid esters Sample Search Results  

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

Sample search results for: acetoacetic acid esters Page: << < 1 2 3 4 5 > >> 1 GTQ, Chemistry 212, Dr. Glaser, FS96 --1 --GTQ on Michael Reactions. (20 points, synthesis,...

123

E-Print Network 3.0 - alcohol aldehyde esters Sample Search Results  

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

5087-5090,1988 0040-403988 3.00 + .oO Printed in Great Britain Pergamon Press plc Summary: been shown to convert aldehydes to methyl esters, whereas secondary alcohols...

124

Synthesis and chemistry of cationic d sup 0 metal alkyl complexes  

SciTech Connect (OSTI)

The objective of this project is to develop new types of electrophilic metal alkyl complexes for catalytic C-H activation and olefin polymerization chemistry, and associated fundamental mechanistic studies. We have focused our efforts on four classes of early metal alkyl complexes: (1) cationic group 4 Cp{sub 2}M(R){sup +} complexes (1) which are active species in Cp{sub 2}MX{sub 2}-based Ziegler-Natta olefin polymerization catalyst systems and which catalyze productive C-H activation reactions of heterocycles, (2) neutral (dicarbollide)(Cp*)M(R) complexes (2) which are structurally are electronically very similar to 1, (3) half-sandwich complexes CpM(R){sub 2}(L){sub n}{sup +} which are highly coordinatively and electronically unsaturated, and (4) new group 5 (dicarbollide)(Cp)MR{sub 2} and (dicarbollide){sub 2} MR complexes which are more unsaturated than group 5 Cp{sub 2}M systems due to incorporation of the dicarbollide ligand.

Jordan, R.F.

1991-01-01T23:59:59.000Z

125

Nuclear magnetic resonance (N.M.R.) studies of alkyl formates and of alcohol-water azeotropes  

E-Print Network [OSTI]

from Eq. 2 for 12 Alkyl Formates in Carbon tetrachloride at 37'. Typical N. M. R. Spectrum of a Non-Azeotropic Ethanol- Water Mixture . 16 N. M. R. Spectrum Occasionally Found for Azeotropic Ethanol-Water Mixtures 17 PART I. ALKYL FORMATES... CHAPTER I. INTRODUCTION 1 It has been shown that eq. 1 applies almost exactly to the data for the alkaline hydrolysis of 9 acetate eaters (CH COOR ) in 40% 0 aqueous p - dioxane at 35 . In eq. 1, k is the second-order rate log k = l. 35 + 0. 688 o + 0...

O'Brien, Patrick William

2012-06-07T23:59:59.000Z

126

High-Octane Fuel from Refinery Exhaust Gas: Upgrading Refinery Off-Gas to High-Octane Alkylate  

SciTech Connect (OSTI)

Broad Funding Opportunity Announcement Project: Exelus is developing a method to convert olefins from oil refinery exhaust gas into alkylate, a clean-burning, high-octane component of gasoline. Traditionally, olefins must be separated from exhaust before they can be converted into another source of useful fuel. Exelus’ process uses catalysts that convert the olefin to alkylate without first separating it from the exhaust. The ability to turn up to 50% of exhaust directly into gasoline blends could result in an additional 46 million gallons of gasoline in the U.S. each year.

None

2009-12-01T23:59:59.000Z

127

Inhibition of human platelet phospholipase A/sub 2/ by mono(2-ethylhexyl)phthalate  

SciTech Connect (OSTI)

There is evidence that the carcinogenic and teratogenic effects attributed to the plasticizer di(2-ethylhexyl)phthalate (DEHP) are due to its major metabolite mono(2-ethylhexyl)phthalate (MEHP). MEHP is also formed ex vivo by a plasma enzyme in blood products stored in polyvinyl chloride (PVC) DEHP plastic containers. People who receive large amounts of blood products, such as hemophiliacs or patients undergoing hemodialysis, cardiopulmonary bypass, or massive transfusion, are exposed to significant levels of plasticizer. In this study, the platelet was used to show that MEHP inhibits phospholipase A/sub 2/ (PLA/sub 2/), one of the enzymes important in the release of arachidonic acid from membrane phospholipids. PLA/sub 2/ was measured by the liberation of /sup 14/C-arachidonic acid from 1-stearoyl-2-(1-/sup 14/C)arachidonyl-L-3-phosphatidylcholine. MEHP inhibits PLA/sub 2/ activity noncompetitively in intact human platelets and lysates with a K/sub i/ of 3.7 x 10/sup -4/ M. DEHP does not inhibit PLA/sub 2/ in whole platelets. Inhibition of PLA/sub 2/ by MEHP occurs at only three times the circulating level of MEHP measured in neonates undergoing exchange transfusion and 20-fold the levels experienced by patients during cardiopulmonary bypass. Therefore, infants and adult patients with multisystem failure who accumulate MEHP in their blood may be at risk for decreased platelet function.

Labow, R.S.; Meek, E.; Adams, G.A.; Rock, G.

1988-06-01T23:59:59.000Z

128

An unusual mono-substituted Keggin anion-chain based 3D framework with 24-membered macrocycles as linker units  

SciTech Connect (OSTI)

A new compound, [Cu{sup I}(H{sub 2}O)(Hbpp){sub 2}] Subset-Of {l_brace}[Cu{sup I}(bpp)]{sub 2}[PW{sub 11}Cu{sup II}O{sub 39}]{r_brace} (1) (bpp=1,3-bis(4-pyridyl)propane), has been hydrothermally synthesized and structurally characterized by single crystal X-ray diffraction. In compound 1, the unusual -A-B-A-B- array mono-substituted Keggin anion-chains and 24-membered (Cubpp){sub 2} cation-macrocycles are linked together to form a (2, 4) connected 3D framework with channels of ca. 9.784 Multiplication-Sign 7.771 A{sup 2} along two directions, in which the [Cu(H{sub 2}O)(Hbpp){sub 2}] coordination fragments as guest components are trapped. The photocatalytic experiments of compound 1 were performed, which show a good catalytic activity of compound 1 for photodegradation of RhB. Furthermore, the IR, TGA and electrochemical properties of compound 1 were investigated. - Graphical abstract: An unusual example of mono-substituted Keggin anion-chain based hybrid compound that possesses a 3D structure has been synthesized, which offers a feasible route for synthesis of such compounds. Highlights: Black-Right-Pointing-Pointer The first example of -A-B-A-B- array mono-substituted Keggin chain is observed. Black-Right-Pointing-Pointer An unusual three dimensional structure based mono-substituted Keggin anion-chains. Black-Right-Pointing-Pointer The photocatalysis and electrochemical properties of the title compound were studied.

Pang Haijun [Key Laboratory of Green Chemical Engineering and Technology College of Heilongjiang Province, College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040 (China); Ma Huiyuan, E-mail: mahy017@163.com [Key Laboratory of Green Chemical Engineering and Technology College of Heilongjiang Province, College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040 (China); Yu Yan; Yang Ming; Xun Ye [Key Laboratory of Green Chemical Engineering and Technology College of Heilongjiang Province, College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040 (China); Liu Bo, E-mail: liubo200400@vip.sina.com [Key Laboratory of Green Chemical Engineering and Technology College of Heilongjiang Province, College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040 (China)

2012-02-15T23:59:59.000Z

129

Carbon?Oxygen Bond Forming Mechanisms in Rhenium Oxo-Alkyl Complexes  

SciTech Connect (OSTI)

Three C?X bond formation mechanisms observed in the oxidation of (HBpz{sub 3})ReO(R)(OTf) [HBpz{sub 3} = hydrotris(1-pyrazolyl)borate; R = Me, Et, and iPr; OTf = OSO{sub 2}CF{sub 3}] by dimethyl sulfoxide (DMSO) were investigated using quantum mechanics (M06//B3LYP DFT) combined with solvation (using the PBF Poisson?Boltzmann polarizable continuum solvent model). For R = Et we find the alkyl group is activated through ?-hydrogen abstraction by external base OTf{sup ?} with a free energy barrier of only 12.0 kcal/mol, leading to formation of acetaldehyde. Alternatively, ethyl migration across the M?O bond (leading to the formation of acetaldehyde and ethanol) poses a free energy barrier of 22.1 kcal/mol, and the previously proposed ?-hydrogen transfer to oxo (a 2+2 forbidden reaction) poses a barrier of 44.9 kcal/mol. The rate-determining step to formation of the final product acetaldehyde is an oxygen atom transfer from DMSO to the ethylidene, with a free energy barrier of 15.3 kcal/mol. When R = iPr, the alkyl 1,2-migration pathway becomes the more favorable pathway (both kinetically and thermodynamically), with a free energy barrier (?G{sup ?} = 11.8 kcal/mol) lower than ?-hydrogen abstraction by OTf{sup ?} (?G{sup ?} = 13.5 kcal/mol). This suggests the feasibility of utilizing this type of migration to functionalize M?R to M?OR. We also considered the nucleophilic attack of water and ammonia on the Re-ethylidene ?-carbon as a means of recovering two-electron-oxidized products from an alkane oxidation. Nucleophilic attack (with internal deprotonation of the nucleophile) is exothermic. However, the subsequent protonolysis of the Re?alkyl bond (to liberate an alcohol or amine) poses a barrier of 37.0 or 42.4 kcal/mol, respectively. Where comparisons are possible, calculated free energies agree very well with experimental measurements.

Cheng, Mu-Jeng; Nielsen, Robert J; Ahlquist, Marten; Goddard, William A

2010-01-01T23:59:59.000Z

130

Alkyl nitrate (C1-C3) depth profiles in the tropical Pacific Ocean E. E. Dahl,1,2  

E-Print Network [OSTI]

and distribution of tropo- spheric ozone. Atmospheric alkyl nitrates are normally associated with polluted air free radical processes initiated by radioactive decay or cosmic rays, enzymatically mediated reactions expedition in the equatorial Pacific, an equatorial maximum in atmospheric ethyl and isopropyl nitrate

Saltzman, Eric

131

J. CHEM. SOC. DALTON TRANS. 1984 2789 12-Bis(dimethy1phosphino)ethane (dmpe) Alkyl Compounds of  

E-Print Network [OSTI]

gives the dialkyldichloro-complex ZrMe,Cl,(dmpe),, whereas interaction with excess LiMe gives the tetraMe,, prepared by alkylation of TiCI, with methyl-lithium at -70 "C.' Unfortunately, this complex decomposes above -70 OC,' and thus little is known concerning its properties. The zirconium analogue ZrMe, is even

Girolami, Gregory S.

132

energy savings by the use of mtbe to replace alkylate in automotive gasolines  

SciTech Connect (OSTI)

This paper presents data on the differences in energy consumption in the production of leaded and unleaded AI-93 gasolines with various blend components. The authors investigate as high-octane components certain products that are more effective in use and less energy-consuming in production in comparison with alkylate. In particular, methyl tert-butyl ether (MTBE) is discussed; it is not poisonous, it has a high heat of combustion, and it does not attack materials of construction. The addition of 11% MTBE to gasoline lowers the cold start temperature of engines by 10-12 degrees. Moreover, no adjustment of the carburetor is required for the changeover to gasoline with 11% MTBE.

Englin, B.A.; Emel'yanov, V.E.; Terent'ev, G.A.; Vinogradov, A.M.

1986-07-01T23:59:59.000Z

133

Detection of a branched alkyl molecule in the interstellar medium: iso-propyl cyanide  

E-Print Network [OSTI]

The largest non-cyclic molecules detected in the interstellar medium (ISM) are organic with a straight-chain carbon backbone. We report an interstellar detection of a branched alkyl molecule, iso-propyl cyanide (i-C3H7CN), with an abundance 0.4 times that of its straight-chain structural isomer. This detection suggests that branched carbon-chain molecules may be generally abundant in the ISM. Our astrochemical model indicates that both isomers are produced within or upon dust grain ice mantles through the addition of molecular radicals, albeit via differing reaction pathways. The production of iso-propyl cyanide appears to require the addition of a functional group to a non-terminal carbon in the chain. Its detection therefore bodes well for the presence in the ISM of amino acids, for which such side-chain structure is a key characteristic.

Belloche, Arnaud; Müller, Holger S P; Menten, Karl M

2014-01-01T23:59:59.000Z

134

Some new progress on the light absorption properties of linear alkyl benzene solvent  

E-Print Network [OSTI]

Linear alkyl benzene (LAB) will be used as the solvent of a liquid scintillator mixture for the JUNO antineutrino experiment in the near future. Its light absorption property should therefore be understood prior to its effective use in the experiment. Attenuation length measurements at a light wavelength of 430 nm have been performed on samples of LAB prepared for the purpose of the JUNO experiment. Inorganic impurities in LAB have also been studied for their possibilities of light absorption in our wavelength of interest. In view of a tentative plan by the JUNO collaboration to utilize neutron capture with hydrogen in the detector, we have also presented in this work, a study on the carbon-hydrogen ratio and the relationship thereof with the attenuation length of the samples.

Guang-You Yu; De-Wen Cao; Ai-Zhong Huang; Lei Yu; Chang-Wei Loh; Wen-Wen Wang; Zhi-Qiang Qian; Hai-Bo Yang; Huang Huang; Zong-Qiang Xu; Xue-Yuan Zhu; Bin Xu; Ming Qi

2015-04-22T23:59:59.000Z

135

Some new progress on the light absorption properties of linear alkyl benzene solvent  

E-Print Network [OSTI]

Linear alkyl benzene (LAB) will be used as the solvent of a liquid scintillator mixture for the JUNO antineutrino experiment in the near future. Its light absorption property should therefore be understood prior to its effective use in the experiment. Attenuation length measurements at a light wavelength of 430 nm have been performed on samples of LAB prepared for the purpose of the JUNO experiment. Inorganic impurities in LAB have also been studied for their possibilities of light absorption in our wavelength of interest. In view of a tentative plan by the JUNO collaboration to utilize neutron capture with hydrogen in the detector, we have also presented in this work, a study on the carbon-hydrogen ratio and the relationship thereof with the attenuation length of the samples.

Yu, Guang-You; Huang, Ai-Zhong; Yu, Lei; Loh, Chang-Wei; Wang, Wen-Wen; Qian, Zhi-Qiang; Yang, Hai-Bo; Huang, Huang; Xu, Zong-Qiang; Zhu, Xue-Yuan; Xu, Bin; Qi, Ming

2015-01-01T23:59:59.000Z

136

Raman Scattering Sensor for Control of the Acid Alkylation Process in Gasoline Production  

SciTech Connect (OSTI)

Gasoline refineries utilize a process called acid alkylation to increase the octane rating of blended gasoline, and this is the single most expensive process in the refinery. For process efficiency and safety reasons, the sulfuric acid can only be used while it is in the concentration range of 98 to 86 %. The conventional technique to monitor the acid concentration is time consuming and is typically conducted only a few times per day. This results in running higher acid concentrations than they would like to ensure that the process proceeds uninterrupted. Maintaining an excessively high acid concentration costs the refineries millions of dollars each year. Using SBIR funding, Process Instruments Inc. has developed an inline sensor for real time monitoring of acid concentrations in gasoline refinery alkylation units. Real time data was then collected over time from the instrument and its responses were matched up with the laboratory analysis. A model was then developed to correlate the laboratory acid values to the Raman signal that is transmitted back to the instrument from the process stream. The instrument was then used to demonstrate that it could create real-time predictions of the acid concentrations. The results from this test showed that the instrument could accurately predict the acid concentrations to within ~0.15% acid strength, and this level of prediction proved to be similar or better then the laboratory analysis. By utilizing a sensor for process monitoring the most economic acid concentrations can be maintained. A single smaller refinery (50,000 barrels/day) estimates that they should save over $120,000/year, with larger refineries saving considerably more.

Uibel, Rory, H.; Smith, Lee M.; Benner, Robert, E.

2006-04-19T23:59:59.000Z

137

Lubricant return comparison of naphthenic and polyol ester oils in R-134a household refrigeration applications  

SciTech Connect (OSTI)

This paper presents mineral oils and polyol esters as possible lubricant options for domestic refrigeration applications employing R-134a as the heat exchange fluid. A performance comparison, based on data presented, is made between the mineral oils and polyol esters evaluated. To more closely examine lubricant return with N-70 and R-134a and ensure that the oil is not contributing to any deterioration in efficiency due to its accumulation in evaporators, a special test unit was designed with a difficult oil return configuration and its performance carefully monitored. Oil return with a hydrofluorocarbon-miscible polyol ester, R-133-O was also evaluated in this setup and its performance results compared to those obtained with the naphthenic refrigeration oil.

Reyes-Gavilan, J.L.; Flak, G.T.; Tritcak, T.R. [Witco Corp., Oakland, NJ (United States)

1996-12-31T23:59:59.000Z

138

Viscosity of aqueous and cyanate ester suspensions containing alumina nanoparticles  

SciTech Connect (OSTI)

The viscosities of both aqueous and cyanate ester monomer (BECy) based suspensions of alumina nanoparticle were studied. The applications for these suspensions are different: aqueous suspensions of alumina nanoparticles are used in the production of technical ceramics made by slip casting or tape casting, and the BECy based suspensions are being developed for use in an injection-type composite repair resin. In the case of aqueous suspensions, it is advantageous to achieve a high solids content with low viscosity in order to produce a high quality product. The addition of a dispersant is useful so that higher solids content suspensions can be used with lower viscosities. For BECy suspensions, the addition of nanoparticles to the BECy resin is expected to enhance the mechanical properties of the cured composite. The addition of saccharides to aqueous suspensions leads to viscosity reduction. Through DSC measurements it was found that the saccharide molecules formed a solution with water and this resulted in lowering the melting temperature of the free water according to classic freezing point depression. Saccharides also lowered the melting temperature of the bound water, but this followed a different rule. The shear thinning and melting behaviors of the suspensions were used to develop a model based on fractal-type agglomeration. It is believed that the structure of the particle flocs in these suspensions changes with the addition of saccharides which leads to the resultant viscosity decrease. The viscosity of the BECy suspensions increased with solids content, and the viscosity increase was greater than predicted by the classical Einstein equation for dilute suspensions. Instead, the Mooney equation fits the viscosity behavior well from 0-20 vol% solids. The viscosity reduction achieved at high particle loadings by the addition of benzoic acid was also investigated by NMR. It appears that the benzoic acid interacts with the surface of the alumina particle which may be the cause of the viscosity reduction. The flow behavior of alumina particles in water and BECy is markedly different. Aqueous alumina suspensions are shear thinning at all alumina loadings and capable of 50 vol% loading before losing fluidity whereas BECy/alumina suspensions show Newtonian behavior up to 5 vol%, and above 5 vol% show shear thinning at all shear rates. Highly loaded suspensions (i.e. 20vol% alumina) exhibit shear thinning at low and moderate shear rates and shear thickening at higher shear rates. The maximum particle loading for a fluid suspension, in this case, appears to be about 20 vol%. The difference in the viscosity of these suspensions must be related to the solvent-particle interactions for each system. The reason is not exactly known, but there are some notable differences between BECy and water. Water molecules are {approx}0.28 nm in length and highly hydrogen bonded with a low viscosity (1 mPa's) whereas in the cyanate ester (BECy) system, the solvent molecule is about 1.2 nm, in the largest dimension, with surfaces of varied charge distribution throughout the molecule. The viscosity of the monomer is also reasonably low for organic polymer precursor, about 7 mPa's. Nanoparticles in water tend to agglomerate and form flocs which are broken with the shear force applied during viscosity measurement. The particle-particle interaction is very important in this system. In BECy, the particles appear to be well dispersed and not as interactive. The solvent-particle interaction appears to be most important. It is not known exactly how the alumina particles interact with the monomer, but NMR suggests hydrogen bonding. These hydrogen bonds between the particle and monomer could very well affect the viscosity. A conclusion that can be reached in this work is that the presence of hydroxyl groups on the surface of the alumina particles is significant and seems to affect the interactions between other particles and the solvent. Thus, the hydrogen bonding between particles, particle/additive and/or particle/solvent dictates the behavior of nanos

Lawler, Katherine

2009-08-05T23:59:59.000Z

139

Process for the generation of .alpha., .beta.-unsaturated carboxylic acids and esters using niobium catalyst  

DOE Patents [OSTI]

A process using a niobium catalyst includes the step of reacting an ester or carboxylic acid with oxygen and an alcohol in the presence a niobium catalyst to respectively produce an .alpha.,.beta.-unsaturated ester or carboxylic acid. Methanol may be used as the alcohol, and the ester or carboxylic acid may be passed over the niobium catalyst in a vapor stream containing oxygen and methanol. Alternatively, the process using a niobium catalyst may involve the step of reacting an ester and oxygen in the presence the niobium catalyst to produce an .alpha.,.beta.-unsaturated carboxylic acid. In this case the ester may be a methyl ester. In either case, niobium oxide may be used as the niobium catalyst with the niobium oxide being present on a support. The support may be an oxide selected from the group consisting of silicon oxide, aluminum oxide, titanium oxide and mixtures thereof. The catalyst may be formed by reacting niobium fluoride with the oxide serving as the support. The niobium catalyst may contain elemental niobium within the range of 1 wt % to 70 wt %, and more preferably within the range of 10 wt % to 30 wt %. The process may be operated at a temperature from 150 to 450.degree. C. and preferably from 250 to 350.degree. C. The process may be operated at a pressure from 0.1 to 15 atm. absolute and preferably from 0.5-5 atm. absolute. The flow rate of reactants may be from 10 to 10,000 L/kg.sub.(cat) /h, and preferably from 100 to 1,000 L/kg.sub.(cat) /h.

Gogate, Makarand Ratnakav (Durham, NC); Spivey, James Jerome (Cary, NC); Zoeller, Joseph Robert (Kingsport, TN)

1999-01-01T23:59:59.000Z

140

Photocatalyzed multiple additions of amines to {alpha}, {beta}-unsaturated esters and nitriles  

SciTech Connect (OSTI)

Photoelectron-transfer-catalyzed intermolecular carbon-carbon bond formation of primary, secondary, and tertiary amines with {alpha}, {beta}-unsaturated esters and nitriles using photosensitizers such as anthraquinone, acridone, and dicyanoanthracene has been investigated. The addition of {alpha}-aminoalkyl radicals, generated via photoelectron-transfer processes, to olefinic substrates and the subsequent 1,5-hydrogen abstraction reactions of the amine-olefin adduct radicals lead to a number of interesting multiple-olefin-added products. The adducts of the primary and secondary amines with {alpha}, {beta}-unsaturated esters undergo further cyclizations to give spiro and cyclic lactams, respectively.

Das, S.; Kumar, J.S.D.; Thomas, K.G.; Shivaramayya, K. [Regional Research Lab., Trivandrum (India); George, M.V. [Regional Research Lab., Trivandrum (India)]|[Univ. of Notre Dame, IN (United States)

1994-02-11T23:59:59.000Z

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


141

The UV/H2O2 advanced oxidation process in UV disinfection units : removal of selected phosphate esters by hydroxyl radical  

E-Print Network [OSTI]

In this work, the issue of how to remove phosphate esters from drinking water is examined. From the various treatment processes available, the oxidation of phosphate esters through hydroxyl radical generated by the UV/H202 ...

Machairas, Alexandros, 1980-

2004-01-01T23:59:59.000Z

142

On the possibility of sourcing a mono-energetic $\\bar?_{e}$ long baseline beta beam from bound beta decay  

E-Print Network [OSTI]

In this paper, the possibility of using fully stripped ions that can decay through bound beta decay to complement electron capture long baseline neutrino oscillation experiments is qualitatively analysed. The disadvantages of such a source are discussed through consideration of the technological challenges faced and the energy resolution required from the detector. It is concluded that ions that bound beta decay cannot be used as a source of mono-energetic anti-neutrinos in a realistic long baseline CP-even neutrino beam.

Christopher Orme

2009-11-24T23:59:59.000Z

143

Lithium Diisopropylamide-Mediated Reactions of Imines, Unsaturated Esters, Epoxides, and Aryl Carbamates  

E-Print Network [OSTI]

Lithium Diisopropylamide-Mediated Reactions of Imines, Unsaturated Esters, Epoxides, and Aryl: Several reactions mediated by lithium diisopropylamide (LDA) with added hexamethylphos- phoramide (HMPA, and selectivities of organolithium reactions.1 A preponderance of what is known about solvation of lithium ions

Collum, David B.

144

A density functional theory model of mechanically activated silyl ester hydrolysis  

SciTech Connect (OSTI)

To elucidate the mechanism of the mechanically activated dissociation of chemical bonds between carboxymethylated amylose (CMA) and silane functionalized silicon dioxide, we have investigated the dissociation kinetics of the bonds connecting CMA to silicon oxide surfaces with density functional calculations including the effects of force, solvent polarizability, and pH. We have determined the activation energies, the pre-exponential factors, and the reaction rate constants of candidate reactions. The weakest bond was found to be the silyl ester bond between the silicon and the alkoxy oxygen atom. Under acidic conditions, spontaneous proton addition occurs close to the silyl ester such that neutral reactions become insignificant. Upon proton addition at the most favored position, the activation energy for bond hydrolysis becomes 31 kJ?mol{sup ?1}, which agrees very well with experimental observation. Heterolytic bond scission in the protonated molecule has a much higher activation energy. The experimentally observed bi-exponential rupture kinetics can be explained by different side groups attached to the silicon atom of the silyl ester. The fact that different side groups lead to different dissociation kinetics provides an opportunity to deliberately modify and tune the kinetic parameters of mechanically activated bond dissociation of silyl esters.

Pill, Michael F.; Schmidt, Sebastian W. [Department of Applied Sciences and Mechatronics, Munich University of Applied Sciences, Lothstr. 34, 80335 Munich (Germany) [Department of Applied Sciences and Mechatronics, Munich University of Applied Sciences, Lothstr. 34, 80335 Munich (Germany); Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Olshausenstraße 40, 24098 Kiel (Germany); Center for Nanoscience (CeNS), Geschwister-Scholl-Platz 1, 80539 Munich (Germany); Beyer, Martin K. [Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Olshausenstraße 40, 24098 Kiel (Germany) [Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Olshausenstraße 40, 24098 Kiel (Germany); Institut für Ionenphysik und Angewandte Physik, Leopold-Franzens-Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck (Austria); Clausen-Schaumann, Hauke [Department of Applied Sciences and Mechatronics, Munich University of Applied Sciences, Lothstr. 34, 80335 Munich (Germany) [Department of Applied Sciences and Mechatronics, Munich University of Applied Sciences, Lothstr. 34, 80335 Munich (Germany); Center for Nanoscience (CeNS), Geschwister-Scholl-Platz 1, 80539 Munich (Germany); Kersch, Alfred, E-mail: akersch@hm.edu [Department of Applied Sciences and Mechatronics, Munich University of Applied Sciences, Lothstr. 34, 80335 Munich (Germany)] [Department of Applied Sciences and Mechatronics, Munich University of Applied Sciences, Lothstr. 34, 80335 Munich (Germany)

2014-01-28T23:59:59.000Z

145

Infrared Study of the Molecular Orientation in Ultrathin Films of Behenic Acid Methyl Ester: Comparison between  

E-Print Network [OSTI]

Infrared Study of the Molecular Orientation in Ultrathin Films of Behenic Acid Methyl Ester-Blodgett transfer. The presence in the infrared spectra of several bands due to the methylene wagging and twisting and infrared spectroscopy have been developed to study these films. Infrared spectroscopy is particularly

Pezolet, Michel

146

E-Print Network 3.0 - acid ester derivatives Sample Search Results  

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

Sample search results for: acid ester derivatives Page: << < 1 2 3 4 5 > >> 1 Exam 2, Chemistry 212, Dr. Glaser, FS96 --1 --C h e m i s t r y 2 1 2 --F a l l S e m e s t e r 1 9 9...

147

Modeling study of the lowtemperature oxidation of large methyl esters from C11 to C19  

E-Print Network [OSTI]

in biodiesel fuels has been investigated. Models have been developed for these species and then detailed; Biodiesel fuels; Modeling; Oxidation * Corresponding author: Olivier Herbinet Laboratory of Reaction the differences with the combustion of alkanes induced by the ester function. While biodiesel fuels deriving from

Boyer, Edmond

148

Cationic Hyperbranched Poly(amino ester): A Novel Class of DNA Condensing Molecule with Cationic  

E-Print Network [OSTI]

molecules.3 It is generally accepted that the high transfection efficiency of PEI or PAMAM comparedCationic Hyperbranched Poly(amino ester): A Novel Class of DNA Condensing Molecule with Cationic to utilize these highly branched molecules in a variety of applications involving combinatorial chemistry

Park, Jong-Sang

149

Preparation and use of tetra-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents  

DOE Patents [OSTI]

Preparation and use of tetra-C-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents. Tetra-C-alkyl derivatives of cobalt dicarbollide, Co(C{sub 2}R{sub 2}B{sub 9}H{sub 9}){sub 2}{sup {minus}}(CoB{sub 2}R{sub 4}{sup {minus}}; R=CH{sub 3} and C{sub 6}H{sub 13}) are demonstrated to be significant cesium and strontium extractants from acidic and alkaline solutions into non-toxic organic solvent systems. Extractions using mesitylene and diethylbenzene are compared to those with nitrobenzene as the organic phase. CoB{sub 2}-hexyl{sub 4}{sup {minus}} in diethylbenzene shows improved selectivity (10{sup 4}) for Cs over Na in acidic solution. In dilute alkaline solution, CoB{sub 2}-hexyl{sub 4}{sup {minus}} extracts Cs less efficiently, but more effectively removes Sr from higher base concentrations. A general synthesis of tetra-C-alkyl cobalt dicarbollides is described. 6 figs.

Miller, R.L.; Pinkerton, A.B.; Abney, K.D.; Kinkead, S.A.

1997-02-11T23:59:59.000Z

150

Preparation and use of tetra-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents  

DOE Patents [OSTI]

Preparation and use of tetra-C-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents. Tetra-C-alkyl derivatives of cobalt dicarbollide, Co(C.sub.2 R.sub.2 B.sub.9 H.sub.9).sub.2.sup.- (CoB.sub.2 R.sub.4.sup.- ; R=CH.sub.3 and C.sub.6 H.sub.13) are demonstrated to be significant cesium and strontium extractants from acidic and alkaline solutions into non-toxic organic solvent systems. Extractions using mesitylene and diethylbenzene are compared to those with nitrobenzene as the organic phase. CoB.sub.2 -hexyl.sub.4.sup.- in diethylbenzene shows improved selectivity (10.sup.4) for Cs over Na in acidic solution. In dilute alkaline solution, CoB.sub.2 -hexyl.sub.4.sup.- extracts Cs less efficiently, but more effectively removes Sr from higher base concentrations. A general synthesis of tetra-C-alkyl cobalt dicarbollides is described.

Miller, Rebecca L. (Los Alamos, NM); Pinkerton, Anthony B. (Santa Fe, NM); Abney, Kent D. (Los Alamos, NM); Kinkead, Scott A. (Los Alamos, NM)

1997-01-01T23:59:59.000Z

151

18-Membered cyclic esters derived from glycolide and lactide: preparations, structures and coordination to sodium ions  

SciTech Connect (OSTI)

From reactions between glycolide or lactide (4 equiv.) with 4-dimethylaminopyridine, DMAP (1 equiv.) and NaBPh4 (1 equiv.) in benzene at 70 C the cyclic ester adducts (CH{sub 2}C(O)O){sub 6}NaBPh{sub 4} and (CHMeC(O)O){sub 6}NaBPh{sub 4} are formed respectively. The structures of the salts Na[(S,R,S,R,S,R)-(CH{sub 3}CHC(O)O){sub 6}]{sub 2}BPh{sub 4} {center_dot} CH{sub 3}CN and (CH{sub 2}C(O)O){sub 6}NaBPh{sub 4} {center_dot} (CH{sub 3}CN){sub 2} are reported. The cyclic esters were separated by chromatography and the structures of (CH{sub 2}C(O)O){sub 6}, (S,R,R,R,R,R)-(CHMeC(O)O){sub 6} and (S,S,R,R,R,R)-(CHMeC(O)O){sub 6} were determined. The {sup 1}H and {sup 13}C NMR data are reported for one of each of the six enantiomers of (CHMeC(O)O){sub 6} and the two meso isomers. The mechanism for the formation of these 18-membered rings is discussed in terms of an initial reaction between DMAP and NaBPh{sub 4} in hot benzene that produces NaPh and DMAP:BPh{sub 3} in the presence of the monomer lactide. The cyclic esters (CHMeC(O)O){sub 6} can also be obtained from the reaction between polylactide, PLA, in the presence of DMAP and NaBPh{sub 4}. The cyclic esters 3-methyl-1,4-dioxane-2,5-dione and 3,6,6-trimethyl-1,4-dioxane-2,5-dione undergo similar ring enlarging reactions to give cyclic 18-membered ring esters as determined by ESI-MS.

Chisholm, Malcolm H.; Gallucci, Judith C.; Yin, Hongfeng (OSU)

2008-06-30T23:59:59.000Z

152

Coal anion structure and chemistry of coal alkylation. Final report, March 1, 1979-February 29, 1980  

SciTech Connect (OSTI)

In accord with Task 1, some ether cleavage reactions were carried out in two different media - potassium/naphthalene/tetrahydrofuran and potassium/ ammonia - so that the merits and demerits of the two methods could be compared. Preliminary results suggest that both systems yield the same products, and that the ammonia medium is more convenient to work with, because of the absence of by-products such as reduced naphthalenes and tetralin. Dialkyl ethers were found to be least reactive compounds while the benzyl and phenyl ethers were found to be most reactive, as would be expected. The reductive alkylation of coal was carried out in ammonia at 25/sup 0/C. The tetrahydrofuran solubility of the reaction product was surprisingly low. We have obtained additional /sup 13/C)/sup 1/H) nmr data for tetrahydrofuran-soluble butylated coal and some model compounds; obtained additional Styragel(R) chromatography data of tetrahydrofuran-soluble coal labelled with 98%-enriched butyl-1,1-d/sub 2/ iodide; and obtained /sup 2/D nmr spectra of all the deuterium-labelled, tetrahydrofuran-soluble coal products. In accord with Task 4, we have undertaken a review of the information now available concerning the nature of Illinois No. 6 coal. Also, the effects of organic additives on the exchange reactions between tetralin-d/sub 12/ and diphenyl-methane and on the thermal cleavage reactions of several model compounds in tetralin were investigated to probe the relationship between structure and reactivity. The exchange reaction can be accelerated by coal, asphaltene-preasphaltene fractions derived from coal, compounds with labile bonds, or compounds which can be reduced readily. The pyridine-insoluble coal product, acids, and bases are inactive toward the exchange reaction.

Stock, L.M.

1980-01-01T23:59:59.000Z

153

OBSERVATIONS IN REACTIVITY BETWEEN BH CONTAINING COMPOUNDS AND ORGANOMETALLIC REAGENTS: SYNTHESIS OF BORONIC ACIDS, BORONIC ESTERS, AND MAGNESIUM HYDRIDES  

E-Print Network [OSTI]

Reaction of BH 3 :THF with magnesium hydride byproduct. A.It was also observed that magnesium hydride can partiallyACIDS, BORONIC ESTERS, AND MAGNESIUM HYDRIDES A dissertation

Clary, Jacob William

2012-01-01T23:59:59.000Z

154

Evaluation of bisphenol E cyanate ester for the resin-injection repair of advanced composites  

SciTech Connect (OSTI)

This thesis is a compilation of a general introduction and literature review that ties together the subsequent chapters which consist of two journal articles that have yet to be submitted for publication. The overall topic relates to the evaluation and application of a new class of cyanate ester resin with unique properties that lend it applicable to use as a resin for injection repair of high glass transition temperature polymer matrix composites. The first article (Chapter 2) details the evaluation and optimization of adhesive properties of this cyanate ester and alumina nanocomposites under different conditions. The second article (Chapter 3) describes the development and evaluation of an injection repair system for repairing delaminations in polymer matrix composites.

Wilber Yaote Lio

2009-12-19T23:59:59.000Z

155

The effects of solvent mixtures on the gel permeation chromatography of alkanes, fatty acids, and fatty acid esters  

E-Print Network [OSTI]

THE EFFECTS OF SOLVENT MIXTURES ON THE GEL PERMEATION CHROMATOGRAPHY OF ALKANES, FATTY ACIDS, AND FATTY ACID ESTERS A Thesis PATRICK LEE BOLTON Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1985 Major Subject: Chemistry THE EFFECTS OP SOLVENT MIXTURES ON THE GEL PERMEATION CHROMATOGRAPHY OF ALKANES, FATTY ACIDS, AND FATTY ACID ESTERS A Thesis by PATRICK LEE BOLTON Approved...

Bolton, Patrick Lee

1985-01-01T23:59:59.000Z

156

Dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources  

DOE Patents [OSTI]

A dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources includes a detector arrangement consists of three detectors downstream from the object under observation. The latter detector, which operates as a beam monitor, is an integrating detector that monitors the total beam power arriving at its surface. The first detector and the middle detector each include an integrating detector surrounding a foil. The foils of these two detectors are made of the same atomic material, but each foil is a different isotope, e.g., the first foil may comprise U235 and second foil may comprise U238. The integrating detectors surrounding these pieces of foil measure the total power scattered from the foil and can be similar in composition to the final beam monitor. Non-resonant photons will, after calibration, scatter equally from both foils.

Barty, Christopher P.J.

2013-02-05T23:59:59.000Z

157

Laboratory Directed Research and Development (LDRD) on Mono-uranium Nitride Fuel Development for SSTAR and Space Applications  

SciTech Connect (OSTI)

The US National Energy Policy of 2001 advocated the development of advanced fuel and fuel cycle technologies that are cleaner, more efficient, less waste-intensive, and more proliferation resistant. The need for advanced fuel development is emphasized in on-going DOE-supported programs, e.g., Global Nuclear Energy Initiative (GNEI), Advanced Fuel Cycle Initiative (AFCI), and GEN-IV Technology Development. The Directorates of Energy & Environment (E&E) and Chemistry & Material Sciences (C&MS) at Lawrence Livermore National Laboratory (LLNL) are interested in advanced fuel research and manufacturing using its multi-disciplinary capability and facilities to support a design concept of a small, secure, transportable, and autonomous reactor (SSTAR). The E&E and C&MS Directorates co-sponsored this Laboratory Directed Research & Development (LDRD) Project on Mono-Uranium Nitride Fuel Development for SSTAR and Space Applications. In fact, three out of the six GEN-IV reactor concepts consider using the nitride-based fuel, as shown in Table 1. SSTAR is a liquid-metal cooled, fast reactor. It uses nitride fuel in a sealed reactor vessel that could be shipped to the user and returned to the supplier having never been opened in its long operating lifetime. This sealed reactor concept envisions no fuel refueling nor on-site storage of spent fuel, and as a result, can greatly enhance proliferation resistance. However, the requirement for a sealed, long-life core imposes great challenges to research and development of the nitride fuel and its cladding. Cladding is an important interface between the fuel and coolant and a barrier to prevent fission gas release during normal and accidental conditions. In fabricating the nitride fuel rods and assemblies, the cladding material should be selected based on its the coolant-side corrosion properties, the chemical/physical interaction with the nitride fuel, as well as their thermal and neutronic properties. The US NASA space reactor, the SP-100 was designed to use mono-uranium nitride fuel. Although the SP-100 reactor was not commissioned, tens of thousand of nitride fuel pellets were manufactured and lots of them, cladded in Nb-1-Zr had been irradiated in fast test reactors (FFTF and EBR-II) with good irradiation results. The Russian Naval submarines also use nitride fuel with stainless steel cladding (HT-9) in Pb-Bi coolant. Although the operating experience of the Russian submarine is not readily available, such combination of fuel, cladding and coolant has been proposed for a commercial-size liquid-metal cooled fast reactor (BREST-300). Uranium mono-nitride fuel is studied in this LDRD Project due to its favorable properties such as its high actinide density and high thermal conductivity. The thermal conductivity of mono-nitride is 10 times higher than that of oxide (23 W/m-K for UN vs. 2.3 W/m-K for UO{sub 2} at 1000 K) and its melting temperature is much higher than that of metal fuel (2630 C for UN vs. 1132 C for U metal). It also has relatively high actinide density, (13.51 gU/cm{sup 3} in UN vs. 9.66 gU/cm{sup 3} in UO{sub 2}) which is essential for a compact reactor core design. The objective of this LDRD Project is to: (1) Establish a manufacturing capability for uranium-based ceramic nuclear fuel, (2) Develop a computational capability to analyze nuclear fuel performance, (3) Develop a modified UN-based fuel that can support a compact long-life reactor core, and (4) Collaborate with the Nuclear Engineering Department of UC Berkeley on nitride fuel reprocessing and disposal in a geologic repository.

Choi, J; Ebbinghaus, B; Meiers, T; Ahn, J

2006-02-09T23:59:59.000Z

158

Self-cooling mono-container fuel cell generators and power plants using an array of such generators  

DOE Patents [OSTI]

A mono-container fuel cell generator contains a layer of interior insulation, a layer of exterior insulation and a single housing between the insulation layers, where fuel cells, containing electrodes and electrolyte, are surrounded by the interior insulation in the interior of the generator, and the generator is capable of operating at temperatures over about 650 C, where the combination of interior and exterior insulation layers have the ability to control the temperature in the housing below the degradation temperature of the housing material. The housing can also contain integral cooling ducts, and a plurality of these generators can be positioned next to each other to provide a power block array with interior cooling. 7 figs.

Gillett, J.E.; Dederer, J.T.; Zafred, P.R.

1998-05-12T23:59:59.000Z

159

Self-cooling mono-container fuel cell generators and power plants using an array of such generators  

DOE Patents [OSTI]

A mono-container fuel cell generator (10) contains a layer of interior insulation (14), a layer of exterior insulation (16) and a single housing (20) between the insulation layers, where fuel cells, containing electrodes and electrolyte, are surrounded by the interior insulation (14) in the interior (12) of the generator, and the generator is capable of operating at temperatures over about 650.degree. C., where the combination of interior and exterior insulation layers have the ability to control the temperature in the housing (20) below the degradation temperature of the housing material. The housing can also contain integral cooling ducts, and a plurality of these generators can be positioned next to each other to provide a power block array with interior cooling.

Gillett, James E. (Greensburg, PA); Dederer, Jeffrey T. (Valencia, PA); Zafred, Paolo R. (Pittsburgh, PA)

1998-01-01T23:59:59.000Z

160

Carlo Beenakker, Leiden University Graphene is a mono-atomic layer of carbon atoms, arranged in a honeycomb la ice. Con-  

E-Print Network [OSTI]

Graphene Carlo Beenakker, Leiden University Graphene is a mono-atomic layer of carbon atoms = 106 m/s that is inde- pendent of their energy E. [1] Explain why the conduction electrons in graphene", and is a unique feature of graphene. We introduce a potential barrier U (x) (see gure). An electron moves

Galis, Frietson

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


161

CVD Growth of Mono-and Bi-Layer Graphene from Ethanol Xiao Chen, Pei Zhao, Bo Hou, Shohei Chiashi and Shigeo Maruyama  

E-Print Network [OSTI]

CVD Growth of Mono- and Bi-Layer Graphene from Ethanol Xiao Chen, Pei Zhao, Bo Hou, Shohei Chiashi substrates has been provn effective in the synthesis of graphene. But before application in graphene electronics, the quality of the synthesized graphene needs to be improved. Therefore a reliable method to grow

Maruyama, Shigeo

162

CVD Growth of Mono-and Bi-Layer Graphene from Ethanol Xiao Chen, Pei Zhao, Bo Hou, Erik Einarsson, Shohei Chiashi and Shigeo Maruyama  

E-Print Network [OSTI]

CVD Growth of Mono- and Bi-Layer Graphene from Ethanol Xiao Chen, Pei Zhao, Bo Hou, Erik Einarsson precursors have been employed to synthesize graphene, such as methane [6], ethane [7] and ethanol [8]. Here we report a systematic study on CVD growth of graphene on Cu and Ni substrates from ethanol. Ethanol

Maruyama, Shigeo

163

Nucleophilic substitutions of 1-alkenylcyclopropyl esters and 1-alkynylcyclopropyl chlorides catalyzed by palladium (0)  

SciTech Connect (OSTI)

The 1-ethenylcyclopropylsulfonates 2e,f and 2-cyclopropylideneethyl esters 10b,c, readily available from cyclopropanone hemiacetal 1, undergo regioselective Pd(0) catalyzed nucleophilic substitution via the unsymmetric 1,1-dimethylene-{pi}-allyl complex 23. With stabilized anions (enolates of malonic ester, {beta}-dicarbonyl compounds, {beta}-sulfonyl ester, and Schiff bases as well as acetate anion, sulfonamide anion, etc.) the nucleophilic substitution occurs at the terminal vinylic position exclusively, providing cyclopropylideneethyl derivatives as building blocks of high synthetic potential. Competition experiments have disclosed that 1-ethenylcyclopropyl tosylate (2e) and cyclopropylideneethyl acetate (10b) are more reactive than dimethylallyl acetates 19 and 22, respectively. Use of chiral phosphines as ligands in the palladium catalyst can provide optically active methylenecyclopropane derivatives. With phenyl-, methyl-, and even n-butylzinc chloride as nucleophiles, the reaction apparently proceeds with initial transfer of the organic residue to palladium, followed by reductive elimination entailing tertiary substitution on the cyclopropane ring exclusively; the same type of product is obtained with azide and bis(trimethylsilyl)amide. But the site of hydride attack to yield reduction products depends on the hydride source. 1-Alkynylcyclopropyl chlorides 12, 13, and 14 react only with organozinc chlorides (nonstabilized nucleophiles) to provide mixtures of ethenylidenecyclopropanes 65 and alkynylcyclopropanes 66, via the {sigma}-palladium complexes 69 and 70, while chloride 15 undergoes mainly reduction. Other transition metal catalysts (Ni, Mo) also induce substitutions, but with poorer regioselectivity. 81 refs., 9 figs., 3 tabs.

Stolle, A. [George-August-Universitaet, Goettingen (Germany)]|[Universite de Paris-Sud, Orsay (France); Ollivier, J.; Salauen, J. [Universite de Paris-Sud, Orsay (France)] [and others

1992-05-20T23:59:59.000Z

164

Interactions of chlorosulfonated polyethylene geomembranes with aliphatic esters: Sorption and diffusion phenomena  

SciTech Connect (OSTI)

The resistance of chlorosulfonated polyethylene geomembranes to nine aliphatic esters viz., methyl acetate, ethyl acetate, methyl acetoacetate, n-butyl acetate, diethyl oxalate, iso-amyl acetate, diethyl malonate, and diethyl succinate was investigated in the temperature interval 25--60 C by measuring the liquid sorption using a gravimetric method. A Fickian diffusion equation was used to calculate the diffusion coefficients, and these data were dependent on the type of ester molecules and their interactions with the geomembrane in additions to temperature and solvent concentration. The activation energy values for the diffusion process were in the range 18--41 kJ/mole and the heat of sorption varied from 0.61 to 18.50 kJ/mole. the sorption/swelling results were found to follow the first order kinetics. Solvent front velocities were calculated from the sorption data. The statistical error analysis has been presented in order to judge the reliability of the technique used. The experimental data and calculated parameters were used to discuss transport results in terms of membrane-solvent interactions. None of the esters showed any degradative effects on the geomembrane used.

Aminabhavi, T.M.; Munnolli, R.S. [Karnatak Univ. (India). Dept. of Chemistry] [Karnatak Univ. (India). Dept. of Chemistry; Ortego, J.D. [Lamar Univ., Beaumont, TX (United States)] [Lamar Univ., Beaumont, TX (United States)

1995-07-01T23:59:59.000Z

165

Synthesis and chemistry of cationic d{sup 0} metal alkyl complexes. Progress report, July 1988--May 1991  

SciTech Connect (OSTI)

The objective of this project is to develop new types of electrophilic metal alkyl complexes for catalytic C-H activation and olefin polymerization chemistry, and associated fundamental mechanistic studies. We have focused our efforts on four classes of early metal alkyl complexes: (1) cationic group 4 Cp{sub 2}M(R){sup +} complexes (1) which are active species in Cp{sub 2}MX{sub 2}-based Ziegler-Natta olefin polymerization catalyst systems and which catalyze productive C-H activation reactions of heterocycles, (2) neutral (dicarbollide)(Cp*)M(R) complexes (2) which are structurally are electronically very similar to 1, (3) half-sandwich complexes CpM(R){sub 2}(L){sub n}{sup +} which are highly coordinatively and electronically unsaturated, and (4) new group 5 (dicarbollide)(Cp)MR{sub 2} and (dicarbollide){sub 2} MR complexes which are more unsaturated than group 5 Cp{sub 2}M systems due to incorporation of the dicarbollide ligand.

Jordan, R.F.

1991-12-31T23:59:59.000Z

166

A quantitative study of the effect of structure on the saponification rates of aliphatic esters  

E-Print Network [OSTI]

of aliphatic ~sters&" (H? ST 'I'basis& The agricul- tural and Hechanicul dolls~", e of Texas, iugust, 1960) ~ J 6 6 11, '. 9. , t 9 ' ~tt ', 10, 41 (199&). APPENDIX 41 TABLE Ssponificstion of Ethyl Acetate st 35 Ca Run 1 Run 2 Time, Resistance Nin... Bennyl Propiona te 14. 55 5. 477 4+041 Oi9992 )o219 Z ~ 420 0. 4604 Oe04956 9i553 TABLE Seoond Order Rate Constants for n-Butyrates Ester h35 2 ~ 1 -1 li aole sino Nethyl n Sutyrate Ethyl a-Butyrate a Propyl n Sutyrate Isopropyl n...

Gonzalez, Federico P

1961-01-01T23:59:59.000Z

167

Lower hybrid instability driven by mono-energy {alpha}-particles with finite pitch angle spread in a plasma  

SciTech Connect (OSTI)

A kinetic formalism of lower hybrid wave instability, driven by mono-energy {alpha}-particles with finite pitch angle spread, is developed. The instability arises through cyclotron resonance interaction with high cyclotron harmonics of {alpha}-particles. The {alpha}-particles produced in D-T fusion reactions have huge Larmor radii ({approx}10 cm) as compared to the wavelength of the lower hybrid wave, whereas their speed is an order of magnitude smaller than the speed of light in vacuum. As a result, large parallel phase velocity lower hybrid waves, suitable for current drive in tokamak, are driven unstable via coupling to high cyclotron harmonics. The growth rate decreases with increase in pitch angle spread of the beam. At typical electron density of {approx}10{sup 19} m{sup -3}, magnetic field {approx}4 Tesla and {alpha}-particle concentration {approx}0.1%, the large parallel phase velocity lower hybrid wave grows on the time scale of 20 ion cyclotron periods. The growth rate decreases with plasma density.

Kumar, Pawan; Singh, Vishwesh; Tripathi, V. K. [Department of Physics, IIT Delhi, New Delhi-110016 (India)

2013-02-15T23:59:59.000Z

168

Alkylating agent methyl methanesulfonate (MMS) induces a wave of global protein hyperacetylation: Implications in cancer cell death  

SciTech Connect (OSTI)

Protein acetylation modification has been implicated in many cellular processes but the direct evidence for the involvement of protein acetylation in signal transduction is very limited. In the present study, we found that an alkylating agent methyl methanesulfonate (MMS) induces a robust and reversible hyperacetylation of both cytoplasmic and nuclear proteins during the early phase of the cellular response to MMS. Notably, the acetylation level upon MMS treatment was strongly correlated with the susceptibility of cancer cells, and the enhancement of MMS-induced acetylation by histone deacetylase (HDAC) inhibitors was shown to increase the cellular susceptibility. These results suggest protein acetylation is important for the cell death signal transduction pathway and indicate that the use of HDAC inhibitors for the treatment of cancer is relevant.

Lee, Min-Young [Department of Biochemistry, College of Medicine, Dong-A University, 3-1, Dongdaeshin-Dong, Seo-Gu, Busan 602-714, South Korea (Korea, Republic of); Kim, Myoung-Ae [Department of Biochemistry, College of Medicine, Dong-A University, 3-1, Dongdaeshin-Dong, Seo-Gu, Busan 602-714, South Korea (Korea, Republic of); Kim, Hyun-Ju [Department of Biochemistry, College of Medicine, Dong-A University, 3-1, Dongdaeshin-Dong, Seo-Gu, Busan 602-714, South Korea (Korea, Republic of); Bae, Yoe-Sik [Department of Biochemistry, College of Medicine, Dong-A University, 3-1, Dongdaeshin-Dong, Seo-Gu, Busan 602-714, South Korea (Korea, Republic of); Park, Joo-In [Department of Biochemistry, College of Medicine, Dong-A University, 3-1, Dongdaeshin-Dong, Seo-Gu, Busan 602-714, South Korea (Korea, Republic of); Kwak, Jong-Young [Department of Biochemistry, College of Medicine, Dong-A University, 3-1, Dongdaeshin-Dong, Seo-Gu, Busan 602-714, South Korea (Korea, Republic of); Chung, Jay H. [Laboratory of Biochemical Genetics, NHLBI, NIH, 10 Center Drive, Bethesda, MD 20892 (United States); Yun, Jeanho [Department of Biochemistry, College of Medicine, Dong-A University, 3-1, Dongdaeshin-Dong, Seo-Gu, Busan 602-714, South Korea (Korea, Republic of)]. E-mail: yunj@dau.ac.kr

2007-08-24T23:59:59.000Z

169

Electrochemical investigations of product deposition and dissolution of the reduced forms of alkyl viologens on glassy carbon  

SciTech Connect (OSTI)

The reductions of several alkyl viologens in aqueous solutions at a glassy carbon working electrode were investigated. All of the viologens studied exist as colorless dication salts (V[sup 2+]) which are easily reduced to the violet cation radical (V[sup +.]) by a one electron process. The dications can be reduced directly to the yellow-brown, quinoidal neutral species (V[sup 0]) by a two electron process, or to neutral via the cation radical by two successive one electron transfers. In the absence of sodium n-alkyl sulfates, all but one displayed reversible, diffusion-controlled electron transfers for the V[sup 2+]/V[sup +.] couple. With addition of sodium decyl, undecyl and dodecyl sulfates at concentrations below their critical micelle concentrations (cmc), the cation radical product of methyl and ethyl viologen deposits on the electrode surface. The addition of these surfactants at concentrations below their cmc's precipitated the dicationic species of butyl, benzyl, and heptyl viologens. All redox forms of the viologens are solubilized by the onset of micelles. Double potential step chronocoulometry showed the deposition mechanism to be governed by solubility product equilibria. Open-circuit rotating ring-disk electrode (OC-RRDE) voltammetric experiments revealed that two forms of deposit exist. Above the cmc, little or no deposition of neutral forms occurs as V[sup 0] is solubilized in the hydrocarbon interior of the micelles. Cyclic voltammetric investigations revealed that there are also two forms of deposit for neutral viologens. For heptyl viologen, there may be more than two forms of both the V[sup +.] and V[sup 0] deposits. Deposition of the neutral form is governed by nucleation and subsequent growth. From RRDE voltammetry lower limits of solubility of neutral viologens were estimated. OC-RRDE voltammetric experiments showed that dissolution occurred by extremely fast conproportionation reaction which caused the process to be mass-transfer controlled.

Engelman, E.E.

1993-01-01T23:59:59.000Z

170

Degradation of the molecular weight and nitrate ester content of cellulose nitrate on thermal aging. [PBX-9404  

SciTech Connect (OSTI)

Changes in molecular weight and nitrate ester content for cellulose nitrate (NC), either pure or as a constituent of PBX-9404, were determined as a function of time and temperature. Changes in the number-averaged molecular weight, M/sub n/, are described by the simple theory of random chain scission, and M/sub n/ is found to correlate well with nitrate ester loss. Significant differences are seen between NC aged in the isolated condition and aged as the binder in PBX-9404.

Leider, H R

1981-06-01T23:59:59.000Z

171

Effect of mono- and dichromatic light quality on growth rates and photosynthetic performance of Synechococcus sp. PCC 7002  

SciTech Connect (OSTI)

Synechococcus sp. PCC 7002 was grown to steady state in optically thin turbidostat cultures under conditions for which light quantity and quality was systematically varied by modulating the output of narrow-band LEDs. Cells were provided photons absorbed primarily by chlorophyll (680 nm) or phycocyanin (630 nm) as the organism was subjected to four distinct mono- and dichromatic regimes. During cultivation with dichromatic light, growth rates displayed by Synechococcus sp. PCC 7002 were generally proportional to the total incident irradiance at values < 275 µmol photons m-2 s-1 and were not affected by the ratio of 630:680 nm wavelengths. Notably, under monochromatic light conditions, cultures exhibited similar growth rates only when they were irradiated with 630 nm light; cultures irradiated with only 680 nm light grew at rates that were 60 – 70% of those under other light quality regimes at equivalent irradiances. The functionality of photosystem II and associated processes such as maximum rate of photosynthetic electron transport, rate of cyclic electron flow, and rate of dark respiration generally increased as a function of growth rate. Nonetheless, some of the photophysiological parameters measured here displayed distinct patterns with respect to growth rate of cultures adapted to a single wavelength including phycobiliprotein content, which increased under severely light-limited growth conditions. Additionally, the ratio of photosystem II to photosystem I increased approximately 40% over the range of growth rates, although cells grown with 680 nm light only had the highest ratios. These results suggest the presence of effective mechanisms which allow acclimation of Synechococcus sp. PCC 7002 acclimation to different irradiance conditions.

Bernstein, Hans C.; Konopka, Allan; Melnicki, Matthew R.; Hill, Eric A.; Kucek, Leo A.; Zhang, Shuyi; Shen, Gaozhong; Bryant, Donald A.; Beliaev, Alex S.

2014-08-30T23:59:59.000Z

172

INSIDE OUT AND UPSIDE DOWN: TRACING THE ASSEMBLY OF A SIMULATED DISK GALAXY USING MONO-AGE STELLAR POPULATIONS  

SciTech Connect (OSTI)

We analyze the present day structure and assembly history of a high-resolution hydrodynamic simulation of the formation of a Milky-Way-(MW)-like disk galaxy, from the ''Eris'' simulation suite, dissecting it into cohorts of stars formed at different epochs of cosmic history. At z = 0, stars with t{sub form} < 2 Gyr mainly occupy the stellar spheroid, with the oldest (earliest forming) stars having more centrally concentrated profiles. The younger age cohorts populate disks of progressively longer radial scale lengths and shorter vertical scale heights. At a given radius, the vertical density profiles and velocity dispersions of stars vary smoothly as a function of age, and the superposition of old, vertically extended and young, vertically compact cohorts gives rise to a double-exponential profile like that observed in the MW. Turning to formation history, we find that the trends of spatial structure and kinematics with stellar age are largely imprinted at birth, or immediately thereafter. Stars that form during the active merger phase at z > 3 are quickly scattered into rounded, kinematically hot configurations. The oldest disk cohorts form in structures that are radially compact and relatively thick, while subsequent cohorts form in progressively larger, thinner, colder configurations from gas with increasing levels of rotational support. The disk thus forms ''inside out'' in a radial sense and ''upside down'' in a vertical sense. Secular heating and radial migration influence the final state of each age cohort, but the changes they produce are small compared to the trends established at formation. The predicted correlations of stellar age with spatial and kinematic structure are in good qualitative agreement with the correlations observed for mono-abundance stellar populations in the MW.

Bird, Jonathan C.; Kazantzidis, Stelios; Weinberg, David H. [Department of Astronomy, Ohio State University, 140 West 18th Avenue, Columbus, OH 43210 (United States); Guedes, Javiera [Institute for Astronomy, ETH Zuerich, Wolgang-Pauli-Strasse 27, CH-8093 Zuerich (Switzerland); Callegari, Simone [Anthropology Institute and Museum, University of Zuerich, Winterthurerstrasse 190, CH-8057 Zuerich (Switzerland); Mayer, Lucio [Institute for Theoretical Physics, University of Zuerich, Winterthurerstrasse 190, CH-8057 Zuerich (Switzerland); Madau, Piero [Department of Astronomy and Astrophysics, University of California, 1156 High Street, Santa Cruz, CA 95064 (United States)

2013-08-10T23:59:59.000Z

173

1,4-Addition of Lithium Diisopropylamide to Unsaturated Esters: Role of Rate-Limiting Deaggregation, Autocatalysis,  

E-Print Network [OSTI]

1,4-Addition of Lithium Diisopropylamide to Unsaturated Esters: Role of Rate-Limiting Deaggregation, Autocatalysis, Lithium Chloride Catalysis, and Other Mixed Aggregation Effects Yun Ma, Alexander C. Hoepker.edu Abstract: Lithium diisopropylamide (LDA) in tetrahydrofuran at -78 °C undergoes 1,4-addition

Collum, David B.

174

Algorithms and Applications for Spatial Data Mining Martin Ester, Hans-Peter Kriegel, Jrg Sander (University of Munich)  

E-Print Network [OSTI]

- 1 - Algorithms and Applications for Spatial Data Mining Martin Ester, Hans-Peter Kriegel, Jörg) for an overview of spatial data mining). Finding implicit reg- ularities, rules or patterns hidden in spatial for spatial data is more complex than for relational data. This applies to both the efficiency of algorithms

Kriegel, Hans-Peter

175

Modelling Study of the Low-Temperature Oxidation of Large Methyl Esters J. Biet, V. Warth, O. Herbinet*  

E-Print Network [OSTI]

-decane / methyl palmitate mixture in a jet-stirred reactor. This paper also presents the construction and a comparison of models for methyl esters from C7 up to C17 in terms of conversion in a jet-stirred reactor, the development of renewable energy is more vital than ever [1,2]. The production of biofuels such as methyl

Paris-Sud XI, Université de

176

Injection repair of carbon fiber/bismaleimide composite panels with bisphenol E cyanate ester resin  

SciTech Connect (OSTI)

Resin injection of bisphenol E cyanate ester, a low viscosity resin that cures into a high temperature thermoset polymer, is investigated as a reliable repair method to restore strength and stiffness in delaminated carbon fiber/bismaleimide composites used in aircraft panels. The influence of temperature on the viscosity of the uncured resin was measured to optimize the injection conditions for high resin infiltration into the delaminations. The repair efficiency of the resin was evaluated by varying the panel thickness and the method by which the delamination damage was created in the composite specimens. Ultrasonic scanning (C-scan), flash thermography images, and cross-section analysis of repaired panels revealed excellent resin infiltration into the damaged region. Evaluation of mechanical repair efficiency using both bending stiffness and in-plain compressive strength of the composite panels as the repair metrics showed values exceeding 100%.

Thunga, Mahendra [Ames Laboratory; Bauer, Amy [Iowa State University; Obusek, Kristine [Fleet Readiness Center East; Meilunas, Ray [Naval Air Warfare Center Aircraft Division; Akinc, Mufit [Ames Laboratory; Kessler, Michael R [Ames Laboratory

2014-08-01T23:59:59.000Z

177

Rheological behavior and cryogenic properties of cyanate ester/epoxy insulation material for fusion superconducting magnet  

SciTech Connect (OSTI)

In a Tokamak fusion reactor device like ITER, insulation materials for superconducting magnets are usually fabricated by a vacuum pressure impregnation (VPI) process. Thus these insulation materials must exhibit low viscosity, long working life as well as good radiation resistance. Previous studies have indicated that cyanate ester (CE) blended with epoxy has an excellent resistance against neutron irradiation which is expected to be a candidate insulation material for a fusion magnet. In this work, the rheological behavior of a CE/epoxy (CE/EP) blend containing 40% CE was investigated with non-isothermal and isothermal viscosity experiments. Furthermore, the cryogenic mechanical and electrical properties of the composite were evaluated in terms of interlaminar shear strength and electrical breakdown strength. The results showed that CE/epoxy blend had a very low viscosity and an exceptionally long processing life of about 4 days at 60 °C.

Wu, Z. X.; Huang, C. J. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR (China); Li, L. F. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China and State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, C (China); Li, J. W. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China and University of Chinese Academy of Sciences, Beijing 100049, PR (China); Tan, R.; Tu, Y. P. [North China Electric Power University, Beijing 102206, PR (China)

2014-01-27T23:59:59.000Z

178

Quantifying the Sigma and Pi interactions between U(V) f orbitals and halide, alkyl, alkoxide, amide and ketimide ligands  

SciTech Connect (OSTI)

f Orbital bonding in actinide and lanthanide complexes is critical to their behavior in a variety of areas from separations to magnetic properties. Octahedral f1 hexahalide complexes have been extensively used to study f orbital bonding due to their simple electronic structure and extensive spectroscopic characterization. The recent expansion of this family to include alkyl, alkoxide, amide, and ketimide ligands presents the opportunity to extend this study to a wider variety of ligands. To better understand f orbital bonding in these complexes, the existing molecular orbital (MO) model was refined to include the effect of covalency on spin orbit coupling in addition to its effect on orbital angular momentum (orbital reduction). The new MO model as well as the existing MO model and the crystal field (CF) model were applied to the octahedral f1 complexes to determine the covalency and strengths of the ? and ? bonds formed by the f orbitals. When covalency is significant, MO models more precisely determined the strengths of the bonds derived from the f orbitals; however, when covalency was small, the CF model was better than either MO model. The covalency determined using the new MO model is in better agreement with both experiment and theory than that predicted by the existing MO model. The results emphasize the role played by the orbital energy in determining the strength and covalency of bonds formed by the f orbitals.

University of California, Berkeley; Lukens, Wayne W.; Edelstein, Norman M.; Magnani, Nicola; Hayton, Trevor W.; Fortier, Skye; Seaman, Lani A.

2013-06-20T23:59:59.000Z

179

Plug repairs of marine glass fiber / vinyl ester laminates subjected to in-plane shear stress or in-plane bending moment  

E-Print Network [OSTI]

Glass fiber / vinyl ester composite laminates represent an important class of modem fiber composites being proposed or used in state-of-the-art shipbuilding. This thesis examined the effectiveness of chopped strand mat ...

Urrutia Valenzuela, Roberto

2010-01-01T23:59:59.000Z

180

Interaction and dynamics of (alkylamide + electrolyte) deep eutectics: Dependence on alkyl chain-length, temperature, and anion identity  

SciTech Connect (OSTI)

Here we investigate the solute-medium interaction and solute-centered dynamics in (RCONH{sub 2} + LiX) deep eutectics (DEs) via carrying out time-resolved fluorescence measurements and all-atom molecular dynamics simulations at various temperatures. Alkylamides (RCONH{sub 2}) considered are acetamide (CH{sub 3}CONH{sub 2}), propionamide (CH{sub 3}CH{sub 2}CONH{sub 2}), and butyramide (CH{sub 3}CH{sub 2}CH{sub 2}CONH{sub 2}); the electrolytes (LiX) are lithium perchlorate (LiClO{sub 4}), lithium bromide (LiBr), and lithium nitrate (LiNO{sub 3}). Differential scanning calorimetric measurements reveal glass transition temperatures (T{sub g}) of these DEs are ?195 K and show a very weak dependence on alkyl chain-length and electrolyte identity. Time-resolved and steady state fluorescence measurements with these DEs have been carried out at six-to-nine different temperatures that are ?100–150 K above their individual T{sub g}s. Four different solute probes providing a good spread of fluorescence lifetimes have been employed in steady state measurements, revealing strong excitation wavelength dependence of probe fluorescence emission peak frequencies. Extent of this dependence, which shows sensitivity to anion identity, has been found to increase with increase of amide chain-length and decrease of probe lifetime. Time-resolved measurements reveal strong fractional power dependence of average rates for solute solvation and rotation with fraction power being relatively smaller (stronger viscosity decoupling) for DEs containing longer amide and larger (weaker decoupling) for DEs containing perchlorate anion. Representative all-atom molecular dynamics simulations of (CH{sub 3}CONH{sub 2} + LiX) DEs at different temperatures reveal strongly stretched exponential relaxation of wavevector dependent acetamide self dynamic structure factor with time constants dependent both on ion identity and temperature, providing justification for explaining the fluorescence results in terms of temporal heterogeneity and amide clustering in these multi-component melts.

Guchhait, Biswajit; Das, Suman; Daschakraborty, Snehasis; Biswas, Ranjit, E-mail: ranjit@bose.res.in [Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata 700098 (India)] [Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata 700098 (India)

2014-03-14T23:59:59.000Z

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


181

Emissions and engine performance from blends of soya and canola methyl esters with ARB {number_sign}2 diesel in a DCC 6V92TA MUI engine  

SciTech Connect (OSTI)

A Detroit Diesel 6V92TA MUI engine was operated on several blends of EPA No. 2 diesel, California ARB No. 2 diesel, soya methyl ester (SME) and canola methyl ester (CME). Various fuels and fuel blend characteristics were determined and engine emissions from these fuels and blends were compared. Increasing percentages of SME and CME blended with either ARB or EPA diesels led to increased emissions of NO{sub x}, CO{sub 2} and soluble particulate matter. Also noted were reductions in total hydrocarbons, CO and insoluble particulate matter. Chassis dynamometer tests conducted on a 20/80 SME/ARB blend showed similar emissions trends. The data suggest that certain methyl ester/No. 2 diesel blends in conjunction with delays in engine timing and technologies that reduce the soluble fraction of particulate emissions merit further exploration as emissions reducing fuel options for North American mass transits (except in California, which mandates ARB diesel).

Spataru, A.; Romig, C.

1995-12-31T23:59:59.000Z

182

Emissions and engine performance from blends of soya and canola methyl esters with ARB No. 2 diesel in a DDC 6V92TA MUI engine  

SciTech Connect (OSTI)

A Detroit Diesel 6V92TA MUI engine was operated on several blends of EPA No. 2 diesel, soya methyl ester (SME) and canola methyl ester (CME). Various fuels and fuel blend characteristics were determined and engine emissions from these fuels and blends were compared. Increasing percentages of SME and CME blended with either ARB or EPA diesels led to increased emissions of NO{sub x}, CO{sub 2} and soluble particulate matter. Also noted were reductions in total hydrocarbons, CO and insoluble particulate matter. Chassis dynamometer tests conducted on a 20/80 SME/ARB blend showed similar emission trends. The data suggest that certain methyl ester/No. 2 diesel blends in conjunction with technologies that reduce the soluble fraction of particulate emissions merit further exploration as emissions reducing fuel options for North American mass transit sectors (except California, which mandates ARB diesel).

Spataru, A.; Romig, C. [ADEPT Group, Inc., Los Angeles, CA (United States)

1995-11-01T23:59:59.000Z

183

Multifunctional Properties of Cyanate Ester Composites with SiO2 Coated Fe3O4 Fillers  

SciTech Connect (OSTI)

SiO2 coated Fe3O4 submicrometer spherical particles (a conducting core/insulating shell configuration) are fabricated using a hydrothermal method and are loaded at 10 and 20 vol % into a bisphenol E cyanate ester matrix for synthesis of multifunctional composites. The dielectric constant of the resulting composites is found to be enhanced over a wide frequency and temperature range while the low dielectric loss tangent of the neat cyanate ester polymer is largely preserved up to 160 ?C due to the insulating SiO2 coating on individual conductive Fe3O4 submicrometer spheres. These composites also demonstrate high dielectric breakdown strengths at room temperature. Dynamic mechanical analysis indicates that the storage modulus of the composite with a 20 vol % filler loading is twice as high as that of neat resin, but the glass transition temperature considerably decreases with increasing filler content. Magnetic measurements reveal a large saturation magnetization and negligibly low coercivity and remanent magnetization in these composites.

Sun, Weixing; Sun, Wuzhu; Kessler, Michael R.; Bowler, Nicola; Dennis, Kevin W.; McCallum, R. William; Li, Qi; Tan, Xiaoli

2013-02-22T23:59:59.000Z

184

Light-ion production in the interaction of 175 MeV quasi-mono-energetic neutrons with iron and with bismuth  

E-Print Network [OSTI]

Nuclear data for neutron-induced reactions in the intermediate energy range of 20 to 200 MeV are of great importance for the development of nuclear reaction codes since little data exist in that range. Also several different applications benefit from such data, notably accelerator-driven incineration of nuclear waste. The Medley setup was used for a series of measurements of p, d, t, $^3$He and $\\alpha$-particle production by 175 MeV quasi-mono-energetic neutrons on various target nuclei. The measurements were performed at the The Svedberg Laboratory in Uppsala, Sweden. Eight detector telescopes placed at angles between 20$^\\circ$ and 160$^\\circ$ were used. Medley uses the $\\Delta E$-$\\Delta E$-$E$ technique to discriminate among the particle types and is able to measure double-differential cross sections over a wide range of particle energies. This paper briefly describes the experimental setup, summarizes the data analysis and reports on recent changes in the previously reported preliminary data set on bismuth. Experimental data are compared with INCL4.5-Abla07, MCNP6 using CEM03.03, TALYS and PHITS model calculations as well as with nuclear data evaluations. The models agree fairly well overall but in some cases systematic differences are found.

R. Bevilacqua; K. Jansson; S. Pomp; P. Andersson; J. Blomgren; C. Gustavsson; A. Hjalmarsson; V. D. Simutkin; M. Österlund; A. J. Koning; A. V. Prokofiev; M. Hayashi; S. Hirayama; Y. Naitou; Y. Watanabe; U. Tippawan; S. G. Mashnik; L. M. Kerby; F. -R. Lecolley; N. Marie; J. -C. David; S. Leray

2014-11-12T23:59:59.000Z

185

3 Micro-mechanics based derivation of the materials constitutive 4 relations for carbon-nanotube reinforced poly-vinyl-ester-epoxy  

E-Print Network [OSTI]

, carbon nanotube-reinforced polymer-ma- 45trix composite) materials have spurred considerable 46interest relations for carbon-nanotube reinforced poly-vinyl-ester-epoxy 5 based composites 6 Mica Grujicic Y. P. Sun mechanical reinforcements for 59lightweight composite systems. However, the material 60and the processing

Grujicic, Mica

186

Standard Thermodynamic Functions of Tripeptides N-Formyl-L-Methionyl-L-Leucyl-L-Phenylalaninol and N-Formyl-L-Methionyl-L-Leucyl-L-Phenylalanine Methyl Ester  

E-Print Network [OSTI]

The heat capacities of tripeptides N-formyl-l-methionyl-l-leucyl-l-phenylalaninol (N-f-MLF-OH) and N-formyl-l-methionyl-l-leucyl-l-phenylalanine methyl ester (N-f-MLF-OMe) were measured by precision adiabatic vacuum ...

Markin, Alexey V.

187

Journal of Materials Science, 2012, 47(14): p. 5596-5604 Thermal expansion behavior of hollow glass particle/vinyl ester composites  

E-Print Network [OSTI]

with the addition of glass microballoons for the twelve compositions of syntactic foams characterized using glass particle/vinyl ester composites Vasanth Chakravarthy Shunmugasamy, Dinesh Pinisetty and Nikhil filled composites (syntactic foams), the coefficient of thermal expansion (CTE) can be controlled by two

Gupta, Nikhil

188

Guiding optimal biofuels : a comparative analysis of the biochemical production of ethanol and fatty acid ethyl esters from switchgrass.  

SciTech Connect (OSTI)

In the current study, processes to produce either ethanol or a representative fatty acid ethyl ester (FAEE) via the fermentation of sugars liberated from lignocellulosic materials pretreated in acid or alkaline environments are analyzed in terms of economic and environmental metrics. Simplified process models are introduced and employed to estimate process performance, and Monte Carlo analyses were carried out to identify key sources of uncertainty and variability. We find that the near-term performance of processes to produce FAEE is significantly worse than that of ethanol production processes for all metrics considered, primarily due to poor fermentation yields and higher electricity demands for aerobic fermentation. In the longer term, the reduced cost and energy requirements of FAEE separation processes will be at least partially offset by inherent limitations in the relevant metabolic pathways that constrain the maximum yield potential of FAEE from biomass-derived sugars.

Paap, Scott M.; West, Todd H.; Manley, Dawn Kataoka; Dibble, Dean C.; Simmons, Blake Alexander; Steen, Eric J. [Joint BioEnergy Institute, Emeryville, CA; Beller, Harry R. [Lawrence Berkeley National Laboratory, Berkeley, CA; Keasling, Jay D. [Lawrence Berkeley National Laboratory, Berkeley, CA; Chang, Shiyan [Tsinghua University, Beijing, PR China

2013-01-01T23:59:59.000Z

189

A Method to Increase Current Density in a Mono Element Internal Tin Processed Superconductor Utilizing Zr Oxide to Refine Grain Size  

SciTech Connect (OSTI)

The effect of Oxygen on (Nb1Zr)3Sn multifilament conductors manufactured by the Mono Element Internal Tin (MEIT) process was explored to improve the current density by refining the grain size. This followed work first done by General Electric on the Nb3Sn tape process. Techniques to fabricate the more difficult Nb1Zr composites are described and allowed fabrication of long lengths of .254 mm diameter wire from an 88.9 mm diameter billet. Oxygen was incorporated through the use of SnO2 mixed with tin powder and incorporated into the core. These were compared to samples with Ti+Sn and Cu+Sn cores. Heat treatments covered the range of 700 C to 1000 C. Current density vs. H, grain size, and reaction percentages are provided for the materials tested. The Oxygen gave superior results in the temperature range of 815-1000 C. It also stabilized the filament geometry of the array in comparison to the other additions at the higher temperatures. At 815 C a peak in layer Jc yielded values of 2537 A/mm2 at 12 T and 1353 A/mm2 at 15T, 8-22% and 30-73% greater respectively than 700 C values. Results with Oxygen at high temperature show the possibility of high speed continuous reaction of the composite versus the current batch or react in place methods. In general the Ti additions gave superior results at the lower reaction temperature. Future work is suggested to determine if the 815 C reaction temperature can lead to higher current density in high tin (Nb1Zr+Ox)3Sn conductors. A second technique incorporated oxygen directly into the Nb1Zr rods through heat treatment with Nb2O5 at 1100 C for 100 hours in vacuum prior to extrusion. The majority of the filaments reduced properly in the composite but some local variations in hardness led to breakage at smaller diameters.

Bruce A. Zeitlin, Eric Gregory

2008-04-07T23:59:59.000Z

190

Biodiesel Production From Animal Fats And Its Impact On The Diesel Engine With Ethanol-Diesel Blends: A Review  

E-Print Network [OSTI]

Abstract — Mainly animal fats and vegetable oils are used for the production of biodiesel. Several types of fuels can be derived from triacylglycerol-containing feedstock. Biodiesel which is defined as the mono-alkyl esters of vegetable oils or animal fats. Biodiesel is produced by transesterifying the oil or fat with an alcohol (methanol/ethanol) under mild conditions in the presence of a base catalyst. This paper discuses fuel production, fuel properties, environmental effects including exhaust emissions and co-products. This also describes the use of glycerol which is the by-product in esterification process along with biodiesel. The impact of blending of biodiesel with ethanol and diesel on the diesel engine has described.

Darunde Dhiraj S; Prof Deshmukh Mangesh M

191

Fueling America Through Renewable Resources What Is Biodiesel?  

E-Print Network [OSTI]

The use of vegetable oil as a fuel source in diesel engines is as old as the diesel engine itself. However, the demand to develop and utilize plant oils and animal fats as biodiesel fuels has been limited until recently. The technical definition of biodiesel is: “The mono alkyl esters of long fatty acids derived from renewable lipid feedstock such as vegetable oils or animal fats, for use in compression ignition (diesel) engines ” (National Biodiesel Board, 1996). In simple terms, biodiesel is a renewable fuel manufactured from methanol and vegetable oil, animal fats, and recycled cooking fats (U.S. Department of Energy, 2006). The term “biodiesel ” itself is often misrepresented and misused. Biodiesel only refers to 100 % pure fuel (B100) that meets the definition above and specific standards given

Shawn P. Conley; Department Of Agronomy

192

Alcohol to Ester 21 ALCOHOL TO ESTER  

E-Print Network [OSTI]

.) Attach a Claisen adapter to the flask. Place a thermometer adapter with a thermometer in the main arm of the Claisen adapter so that the thermometer point is immersed in the liquid (but not so deep sulfuric acid (may be strong exotherm). Rapidly plug the Claisen adapter (with thermometer and condenser

Jasperse, Craig P.

193

Development and application of a redox indicator method for the kinetics of oxidation of vanadium(II) ions by hydrogen peroxide and alkyl hydroperoxides  

SciTech Connect (OSTI)

The addition of the methyl viologen radical cation (PQ/sup .+/) to solutions of V(H/sub 2/O)/sub 6//sup 2 +/ and hydrogen peroxide or alkyl hydroperoxide provides a method for measuring the initial reaction rate. The kinetic data so obtained are consistent with the rate equation -d(peroxide)/dt = k/sub 1/(V/sup 2 +/)(peroxide). Kinetic data are given for H/sub 2/O/sub 2/ (k/sub 1/ = 15.4 M/sup -1/ s/sup -1/ at 25.0/sup 0/C) and for RC(CH/sub 3/)/sub 2/OOH, with R = CH/sub 3/ (3.0 M/sup -1/ s/sup -1/), C/sub 2/H/sub 5/ (5.2 M/sup -1/ s/sup -1/), and CH/sub 2/C/sub 6/H/sub 5/ (4.8 M/sup -1/ s/sup -1/). 27 references, 2 figures, 2 tables.

Kim, H.P.; Espenson, J.H.; Bakac, A.

1987-12-02T23:59:59.000Z

194

Evaluation of inter-laminar shear strength of GFRP composed of bonded glass/polyimide tapes and cyanate-ester/epoxy blended resin for ITER TF coils  

SciTech Connect (OSTI)

The insulation system of the ITER TF coils consists of multi-layer glass/polyimide tapes impregnated a cyanate-ester/epoxy resin. The ITER TF coils are required to withstand an irradiation of 10 MGy from gamma-ray and neutrons since the ITER TF coils is exposed by fast neutron (>0.1 MeV) of 10{sup 22} n/m{sup 2} during the ITER operation. Cyanate-ester/epoxy blended resins and bonded glass/polyimide tapes are developed as insulation materials to realize the required radiation-hardness for the insulation of the ITER TF coils. To evaluate the radiation-hardness of the developed insulation materials, the inter-laminar shear strength (ILSS) of glass-fiber reinforced plastics (GFRP) fabricated using developed insulation materials is measured as one of most important mechanical properties before/after the irradiation in a fission reactor of JRR-3M. As a result, it is demonstrated that the GFRPs using the developed insulation materials have a sufficient performance to apply for the ITER TF coil insulation.

Hemmi, T.; Matsui, K.; Koizumi, N. [Japan Atomic Energy Agency, Fusion Research and Development Directorate 801-1 Mukoyama, Naka, Ibaraki, 311-0193 (Japan); Nishimura, A. [National Institute for Fusion Science, Fusion Engineering Research Center 322-6 Oroshi-cho, Toki, Gifu, 509-5292 (Japan); Nishijima, S. [Osaka University, Division of Sustainable Energy and Environmental Engineering 1-1 Yamadaoka, Suita, Osaka, 565-0871 (Japan); Shikama, T. [Tohoku University, Institute for Materials Research 2-1-1 Katahira, Aoba, Sendai, Miyagi, 980-8577 (Japan)

2014-01-27T23:59:59.000Z

195

JOURNAL OF MATERIALS SCIENCE 2012, IN PRESS DOI: 10.1007/S10853-012-6927-8 Viscoelastic properties of hollow glass particle filled vinyl ester matrix syntactic foams: effect of temperature and loading  

E-Print Network [OSTI]

properties of hollow glass particle filled vinyl ester matrix syntactic foams: effect of temperature compositions of syntactic foams. Storage modulus, loss modulus, and glass transition temperature (Tg@poly.edu Abstract Viscoelastic properties of hollow particle reinforced composites called syntactic foams

Gupta, Nikhil

196

Use of novel compounds to reduce methane production and in pre-harvest strategies to decrease foodborne pathogens  

E-Print Network [OSTI]

and the nitropropionic acid compounds can be mono, -di, or -tri glucose esters (J. L. Rios, 1997). Ruminal microbial ?- glucosidase and esterase hydrolyze the glucose conjugates to liberate nitropropanol or nitropropionic acid, which could be absorbed in the reticulo...

Gutierrez Banuelos, Hector

2009-05-15T23:59:59.000Z

197

Involvement of a chromatin modifier in response to mono-(2-ethylhexyl) phthalate (MEHP)-induced Sertoli cell injury: Probably an indirect action via the regulation of NF?B/FasL circuitry  

SciTech Connect (OSTI)

Highlights: •MTA1 expression is upregulated in SCs upon MEHP treatment. •Knockdown of MTA1 in SCs impairs the MEHP-induced NF?B signaling activation. •Knockdown of MTA1 inhibits recruitment of NF?B onto FasL promoter in MEHP-treated SCs. -- Abstract: The Fas/FasL signaling pathway, controlled by nuclear factor-?B (NF?B) at the transcriptional level, is critical for triggering germ cell apoptosis in response to mono-(2-ethylhexyl) phthalate (MEHP)-induced Sertoli cell (SC) injury, but the exact regulation mechanism remain unknown. Here, we discovered that expression level of Metastasis associated protein 1 (MTA1), a component of the Mi-2/nucleosome remodeling and deacetylase complex, was upregulated in SCs during the early recovery after MEHP exposure. This expression change was in line with the dynamic changes in germ cell apoptosis in response to MEHP treatment. Furthermore, a knockdown of MTA1 by RNAi in SCs was found to impair the MEHP-induced early activation of NF?B pathway and abolish the recruitment of NF?B onto FasL promoter, which consequently diminished the MEHP-triggered FasL induction. Considering that Fas/FasL is a well characterized apoptosis initiating signaling during SCs injury, our results point to a potential “switch on” effect of MTA1, which may govern the activation of NF?B/FasL cascade in MEHP-insulted SCs. Overall, the MTA1/NF?B/FasL circuit may serve as an important defensive/repairing mechanism to help to control the germ cell quality after SCs injury.

Chen, Shiwei [Department of Urology, 174th Hospital of PLA, Fujian 361001 (China)] [Department of Urology, 174th Hospital of PLA, Fujian 361001 (China); Dong, Yushu [Department of Neurosurgery, 463rd Hospital of PLA, Shenyang 110042 (China)] [Department of Neurosurgery, 463rd Hospital of PLA, Shenyang 110042 (China); Xu, Chun; Jiang, Liming; Chen, Yongjie; Jiang, Cheng [Department of Urology, 174th Hospital of PLA, Fujian 361001 (China)] [Department of Urology, 174th Hospital of PLA, Fujian 361001 (China); Hou, Wugang, E-mail: gangwuhou@163.com [Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032 (China)] [Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032 (China); Li, Wei, E-mail: liweipepeyato@163.com [Department of Human Anatomy, Histology and Embryology, Fourth Military Medical University, Xi’an 710032 (China)] [Department of Human Anatomy, Histology and Embryology, Fourth Military Medical University, Xi’an 710032 (China)

2013-11-01T23:59:59.000Z

198

Low-temperature oxidative degradation of PBX 9501 and its components determined via molecular weight analysis of the poly [ester urethane] binder  

SciTech Connect (OSTI)

The results of following the oxidative degradation of a plastic-bonded explosive (PBX 9501) are reported. Into over 1100 sealed containers were placed samples of PBX 9501 and combinations of its components and aged at relatively low temperatures to induce oxidative degradation of the samples. One of the components of the explosive is a poly(ester urethane) polymer and the oxidative degradation of the samples were following by measuring the molecular weight change of the polymer by gel permeation chromatography (coupled with both differential refractive index and multiangle laser light scattering detectors). Multiple temperatures between 40 and 64 {sup o}C were used to accelerate the aging of the samples. Interesting induction period behavior, along with both molecular weight increasing (crosslinking) and decreasing (chain scissioning) processes, were found at these relatively mild conditions. The molecular weight growth rates were fit to a random crosslinking model for all the combinations of components. The fit rate coefficients show Arrhenius behavior and activation energies and frequency factors were obtained. The kinetics of molecular weight growth shows a compensatory effect between the Arrhenius prefactors and activation energies, suggesting a common degradation process between PBX 9501 and the various combinations of its constituents. An oxidative chemical mechanism of the polymer is postulated, consistent with previous experimental results, that involves a competition between urethane radical crosslinking and carbonyl formation.

Kress, Joel D [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

199

Tyrosine hydroxylase is activated and phosphorylated at different sites in rat pheochromocytoma PC 12 cells treated with phorbol ester and forskolin  

SciTech Connect (OSTI)

The effects of phorbol ester (4..beta..-phorbol, 12..beta..-myristate, 13..cap alpha..-acetate; TPA), an activator of Ca/sup + +//phospholipid-dependent protein kinase (PK-C), and forskolin, which stimulates adenylate cyclase and cyclic AMP-dependent protein kinase (cAMP-PK), on the activation and phosphorylation of tyrosine hydroxylase (TH) in rat pheochromocytoma (PC 12) cells were examined. Incubation of the cells with TPA (0.01-1 ..mu..M) or forskolin (0.01-0.1 ..mu..M) produces increases in activation and phosphorylation of TH in a concentration-dependent manner. The stimulatory effects of TPA are dependent on extracellular Ca/sup + +/ and are inhibited by pretreatment of the cells with trifluoperazine (TFP). The effects of forskolin are independent of Ca/sup + +/ and are not inhibited by TFP. In cells treated with forskolin, the time course of the increase in cAMP correlates with the increases in TH activity and phosphorylation. cAMP levels do not increase in cells treated with TPA. There is an increase in the phosphorylation of only one tryptic phosphopeptide derived from TH in cells treated with either forskolin or TPA. The peptide phosphorylated in TPA-treated cells exhibits different elution characteristics on HPLC from that in forskolin-treated cells. The authors conclude that TH in PC 12 cells is phosphorylated on different sites by cAMP-PK and PK-C. Phosphorylation of either of these sites is associated with enzyme activation.

Tachikawa, E.; Tank, A.W.; Weiner, D.H.; Mosimann, W.F.; Yanagihara, N.; Weiner, N.

1986-03-01T23:59:59.000Z

200

The use of novel biodegradable, optically active and nanostructured poly(amide-ester-imide) as a polymer matrix for preparation of modified ZnO based bionanocomposites  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer A novel biodegradable and nanostructured PAEI based on two amino acids, was synthesized. Black-Right-Pointing-Pointer ZnO nanoparticles were modified via two different silane coupling agents. Black-Right-Pointing-Pointer PAEI/modified ZnO BNCs were synthesized through ultrasound irradiation. Black-Right-Pointing-Pointer ZnO particles were dispersed homogeneously in PAEI matrix on nanoscale. Black-Right-Pointing-Pointer The effect of ZnO nanoparticles on the properties of synthesized polymer was examined. -- Abstract: A novel biodegradable and nanostructured poly(amide-ester-imide) (PAEI) based on two different amino acids, was synthesized via direct polycondensation of biodegradable N,N Prime -bis[2-(methyl-3-(4-hydroxyphenyl)propanoate)]isophthaldiamide and N,N Prime -(pyromellitoyl)-bis-L-phenylalanine diacid. The resulting polymer was characterized by FT-IR, {sup 1}H NMR, specific rotation, elemental analysis, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) analysis. The synthesized polymer showed good thermal stability with nano and sphere structure. Then PAEI/ZnO bionanocomposites (BNCs) were fabricated via interaction of pure PAEI and ZnO nanoparticles. The surface of ZnO was modified with two different silane coupling agents. PAEI/ZnO BNCs were studied and characterized by FT-IR, XRD, UV/vis, FE-SEM and TEM. The TEM and FE-SEM results indicated that the nanoparticles were dispersed homogeneously in PAEI matrix on nanoscale. Furthermore the effect of ZnO nanoparticle on the thermal stability of the polymer was investigated with TGA and DSC technique.

Abdolmaleki, Amir, E-mail: abdolmaleki@cc.iut.ac.ir [Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran (Iran, Islamic Republic of) [Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran (Iran, Islamic Republic of); Nanotechnology and Advanced Materials Institute, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran (Iran, Islamic Republic of); Mallakpour, Shadpour, E-mail: mallak@cc.iut.ac.ir [Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran (Iran, Islamic Republic of) [Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran (Iran, Islamic Republic of); Nanotechnology and Advanced Materials Institute, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran (Iran, Islamic Republic of); Borandeh, Sedigheh [Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran (Iran, Islamic Republic of)] [Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran (Iran, Islamic Republic of)

2012-05-15T23:59:59.000Z

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


201

Water-soluble polymers and compositions thereof  

DOE Patents [OSTI]

Water-soluble polymers including functionalization from the group of amino groups, carboxylic acid groups, phosphonic acid groups, phosphonic ester groups, acylpyrazolone groups, hydroxamic acid groups, aza crown ether groups, oxy crown ethers groups, guanidinium groups, amide groups, ester groups, aminodicarboxylic groups, permethylated polyvinylpyridine groups, permethylated amine groups, mercaptosuccinic acid groups, alkyl thiol groups, and N-alkylthiourea groups are disclosed.

Smith, B.F.; Robison, T.W.; Gohdes, J.W.

1999-04-06T23:59:59.000Z

202

NREL: Energy Analysis - Sean Esterly  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements ofLiz Torres Photo of LizSchwabe PhotoSadie

203

Composition of the wax fraction of bitumen from methylated brown coals  

SciTech Connect (OSTI)

Changes in the group and individual compositions of the wax fractions of bitumen in the course of brown coal methylation were studied. With the use of IR and NMR spectroscopy and chromatography-mass spectrometry, it was found that the esters of methylated coal waxes consisted of the native esters of fatty acids and the methyl esters of these acids formed as a result of an alkylation treatment. Esterification and transesterification were predominant among the reactions of aliphatic fraction components. A positive effect of methanol alkylation on an increase in the yield of the aliphatic fractions was found.

S.I. Zherebtsov; A.I. Moiseev [Russian Academy of Sciences, Kemerovo (Russian Federation). Institute of Coal and Coal Chemistry

2009-04-15T23:59:59.000Z

204

Biodiesel Production from Linseed Oil and Performance Study of a Diesel Engine 40 BIODIESEL PRODUCTION FROM LINSEED OIL AND PERFORMANCE STUDY OF A DIESEL ENGINE WITH DIESEL BIO-DIESEL FUELS  

E-Print Network [OSTI]

Abstract: The use of biodiesel is rapidly expanding around the world, making it imperative to fully understand the impacts of biodiesel on the diesel engine combustion process and pollutant formation. Biodiesel is known as “the mono alkyl esters of long chain fatty acids derived from renewable lipid feedstock, such as vegetable oils or animal fats, for use in compression ignition (diesel) engines. ” Biodiesel was made by transesterification from linseed oil. In aspect of Bangladesh linseed can play an important role in the production of alternative diesel fuel. The climatic and soil condition of our country is convenient for the production of linseed (Linum Usitatissimum) crop. In the first phase of this work optimization of different parameters for biodiesel production were investigated. In the second phase the performance study of a diesel engine with diesel biodiesel blends were carried out. The results showed that with the variation of catalyst, methanol and reaction time; variation of biodiesel production was realized. About 88 % biodiesel production was experienced with 20 % methanol, 0.5% NaOH catalyst and at 550C. The results also showed that when compared with neat diesel fuel, biodiesel gives almost similar thermal efficiency, lower carbon monoxide (CO) and particulate matter (PM) while slightly higher nitrogen oxide (NOx) emission was experienced.

Md. Nurun Nabi; S. M. Najmul Hoque

205

Manganese-catalyzed carbonylation of alkyl iodides  

E-Print Network [OSTI]

The palladium-catalyzed cross-coupling of aryl bromides with zirconocene-benzyne complexes has been investigated by S.L. Buchwald and coworkers. This method allows the formation of substituted biphenyls and terphenyls, ...

Westerhaus, Felix Alexander

2009-01-01T23:59:59.000Z

206

Solid Catalyst - Alkylation - Energy Innovation Portal  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment2) 1/8 5/15/11Soliciting Candidates

207

Graphene composite for improvement in the conversion efficiency of flexible poly 3-hexyl-thiophene:[6,6]-phenyl C{sub 71} butyric acid methyl ester polymer solar cells  

SciTech Connect (OSTI)

The solution of thin graphene-sheets obtained from a simple ultrasonic exfoliation process was found to chemically interact with [6,6]-phenyl C{sub 71} butyric acid methyl ester (PCBM) molecules. The thinner graphene-sheets have significantly altered the positions of highest occupied molecular orbital and lowest unoccupied molecular orbital of PCBM, which is beneficial for the enhancement of the open circuit voltage of the solar cells. Flexible bulk heterojunction solar cells fabricated using poly 3-hexylthiophene (P3HT):PCBM-graphene exhibited a power conversion efficiency of 2.51%, which is a ?2-fold increase as compared to those fabricated using P3HT:PCBM. Inclusion of graphene-sheets not only improved the open-circuit voltage but also enhanced the short-circuit current density owing to an improved electron transport.

Chauhan, A. K., E-mail: akchau@barc.gov.in, E-mail: akc.barc@gmail.com; Gusain, Abhay; Jha, P.; Koiry, S. P.; Saxena, Vibha; Veerender, P.; Aswal, D. K.; Gupta, S. K. [Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085 (India)

2014-03-31T23:59:59.000Z

208

alkyl-tert alkyl ethers: Topics by E-print Network  

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

TREAT METHYL- TERT-BUTYL ETHER CONTAMINATED CiteSeer Summary: Methyl-tert-butyl ether (MTBE) is a commonly used gasoline additive. Leaking underground storage tank systems,...

209

A novel approach for the characterization of a bilayer of phenyl-c71-butyric-acid-methyl ester and pentacene using ultraviolet photoemission spectroscopy and argon gas cluster ion beam sputtering process  

SciTech Connect (OSTI)

The material arrangement and energy level alignment of an organic bilayer comprising of phenyl-c71-butyric-acid-methyl ester (PCBM-71) and pentacene were studied using ultraviolet photoelectron spectroscopy (UPS) and the argon gas cluster ion beam (GCIB) sputtering process. Although there is a small difference in the full width at half maximum of the carbon C 1s core level peaks and differences in the oxygen O 1s core levels of an X-ray photoemission spectroscopy spectra, these differences are insufficient to clearly distinguish between PCBM-71 and pentacene layers and to classify the interface and bulk regions. On the other hand, the valence band structures in the UPS spectra contain completely distinct configurations for the PCBM-71 and pentacene layers, even when they have similar atomic compositions. According to the valence band structures of the PCBM-71/pentacene/electrodes, the highest unoccupied molecular orbital (HOMO) region of pentacene is at least 0.8 eV closer to the Fermi level than that of PCBM-71 and it does not overlap with any of the chemical states in the valence band structure of PCBM-71. Therefore, by just following the variations in the area of the HOMO region of pentacene, the interface/bulk regions of the PCBM/pentacene layers were distinctly categorized. Besides, the variation of valence band structures as a function of the Ar GCIB sputtering time fully corroborated with the surface morphologies observed in the atomic force microscope images. In summary, we believe that the novel approach, which involves UPS analysis in conjunction with Ar GCIB sputtering, can be one of the best methods to characterize the material distribution and energy level alignments of stacks of organic layers.

Yun, Dong-Jin; Chung, JaeGwan; Jung, Changhoon; Chung, Yeonji; Kim, SeongHeon; Lee, Seunghyup; Kim, Ki-Hong; Han, Hyouksoo; Park, Gyeong-Su; Park, SungHoon [Analytical Science Laboratory of Samsung Advanced Institute of Technology, P.O. Box 14-1, Yongin 446-712 (Korea, Republic of)] [Analytical Science Laboratory of Samsung Advanced Institute of Technology, P.O. Box 14-1, Yongin 446-712 (Korea, Republic of)

2013-09-07T23:59:59.000Z

210

Surface spectroscopic studies of mono- and bimetallic model catalysts  

E-Print Network [OSTI]

This dissertation is focused on understanding heterogeneous bimetallic catalysts using model catalyst systems, such as Pd-Au/Mo(110), Pd/Au(111) and Pd/Au(100). Monometallic and bimetallic model catalysts, composed of Pd and Au, were prepared...

Yi, Cheol-Woo

2007-04-25T23:59:59.000Z

211

Colorado 11/2002 3 mono SPI ESTES PAR!,  

E-Print Network [OSTI]

, 0:34 STERUNG 0'26 -6.54 LAMAR 0~1 O~0 0:15 0:2 0:20 0:66 0:92 SPRINGFIELD CORTEZ 0:49-6.10 TRINIDAD·92 0*.47 0*.09 BURUNGT~N 0*.16 0*.690*.14 CHEYENNE WE 0·66 0*.650*.25 0'15 0*.441 LAMAR 0*.27 0*.65 O:29 -6.93 -6.9 0.0.. ~ CHEYENNE WE -6.02 LAMAR -6.12 BURIJNGT~N -6.78 -6.77 -6.25 -6.77 AKRON -6

212

Coaxial Mono-Energetic Gamma Generator for Active Interrogation  

E-Print Network [OSTI]

of Energy's National Nuclear Security Administration underof Homeland Security, Domestic Nuclear Detection Office

Ludewigt, Bernhard A.

2010-01-01T23:59:59.000Z

213

Coaxial Mono-Energetic Gamma Generator for Active Interrogation  

E-Print Network [OSTI]

Using Low-Energy Nuclear Reactions”, in Proceedings of SPIE:designed that uses low-energy nuclear reactions to produce aidea of using low-energy nuclear reactions to produce the

Ludewigt, Bernhard A.

2010-01-01T23:59:59.000Z

214

Mono- and bis-tolylterpyridine iridium(III) complexes  

SciTech Connect (OSTI)

The first structure report of trichlorido[4'-(p-tolyl)-2,2':6',2{double_prime}-terpyridine]iridium(III) dimethyl sulfoxide solvate, [IrCl{sub 3}(C{sub 22}H{sub 17}N{sub 3})] {center_dot} C{sub 2}H{sub 6}OS, (I), is presented, along with a higher-symmetry setting of previously reported bis[4'-(p-tolyl)-2,2':6',2{double_prime}-terpyridine]iridium(III) tris(hexafluoridophosphate) acetonitrile disolvate, [Ir(C{sub 22}H{sub 17}N{sub 3})2](PF{sub 6}){sub 3} {center_dot} 2C{sub 2}H{sub 3}N, (II) [Yoshikawa, Yamabe, Kanehisa, Kai, Takashima & Tsukahara (2007). Eur. J. Inorg. Chem. pp. 1911-1919]. For (I), the data were collected with synchrotron radiation and the dimethyl sulfoxide solvent molecule is disordered over three positions, one of which is an inversion center. The previously reported structure of (II) is presented in the more appropriate C2/c space group. The iridium complex and one PF{sub 6}{sup -} anion lie on twofold axes in this structure, making half of the molecule unique.

Hinkle, Lindsay M.; Young, Jr., Victor G.; Mann, Kent R. (UMM)

2012-01-20T23:59:59.000Z

215

Mono-atomic THE KINETIC THEORY OF GASES  

E-Print Network [OSTI]

of the expression above for the equation of state, let's consider an adiabatic process, one in which the gas would like to predict the changes in the gas volume as a consequence of changes in pressure. F Q = 0 of thermodynamics, dU = Q - W, we obtain U = - W When the volume changes by dV, the work done by the gas W is Pd

La Rosa, Andres H.

216

Mono-atomic THE KINETIC THEORY OF GASES  

E-Print Network [OSTI]

of the expression above for the equation of state, let's consider an adiabatic process, one in which the gas would like to predict the changes in the gas volume as a consequence of changes in pressure. F Q = 0 of thermodynamics, dU = Q - W, we obtain dU = - W When the volume changes by dV, the work done by the gas W is Pd

217

Mono County, California: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 -Energieprojekte GmbHMilo,Energy InformationNortheast Asia

218

North Shore Mono Lake Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's HeatMexico:Community NominationsCarolina‎ |NAE/Enel North AmericaShore

219

Volcanism, Structure, and Geochronology of Long Valley Caldera, Mono  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place: Salt Lake City,Division of Oil andInformationStCounty,

220

Mono-Energetic Gamma-ray (MEGa-ray)  

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

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

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


221

Geochemistry of Thermal Waters in Long Valley, Mono County, California |  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6TheoreticalFuelCellGemini SolarAssetsof ThermalEnergy|

222

Hydrologic and Geochemical Monitoring in Long Valley Caldera, Mono County,  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:GreerHiCalifornia: Energy ResourcesPark,isHydroHydrogen

223

Hydrologic and Geochemical Monitoring in Long Valley Caldera, Mono County,  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyName HousingIII WindHybridsCarCalifornia, 1985 | Open

224

Hydrologic and Geochemical Monitoring in Long Valley Caldera, Mono County,  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyName HousingIII WindHybridsCarCalifornia, 1985 |

225

Knowledge Discovery in Spatial Databases Martin Ester  

E-Print Network [OSTI]

and their interactions with each other. Most companies, governmental agencies and scientific organizations use DBMS with ex­ isting DBMS. Thus, the second goal is to propose methods of efficiently supporting spatial data mining algorithms by a DBMS. Our approach centers around a new set of database primitives for mining

Ester, Martin

226

Sandia National Laboratories: fatty acid ethyl esters  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1development Sandia,evaluating wind-turbine/radar impacts Sandiafaster mass

227

Solvent extraction studies of holmium with acidic extractants  

SciTech Connect (OSTI)

Liquid-liquid extraction studies of holmium with 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester, naphthenic, and Versatic 10 acids have been carried out. The nature of the extracted species and the extraction equilibrium constants of these systems have been determined from aqueous nitrate solution. The extraction mechanism and complexation models have been proposed. 11 refs., 8 figs.

Gaikwad, A.G.; Damodaran, A.D. (CSIR, Trivandrum (India))

1993-03-01T23:59:59.000Z

228

Enantioselective Total Synthesis of Ustiloxin D Hiroko Tanaka, Andrew M. Sawayama, and Thomas J. Wandless*  

E-Print Network [OSTI]

and a chiral -allyl palladium complex to construct the chiral tertiary alkyl-aryl ether.13 Taken together of ustiloxin D. The meta hydroxyl group of 3,4-dihydroxybenzaldehyde was selectively acetylated using aceticCO3 in THF and methanol coincidently epimerized the methyl ester and hydrolyzed the aryl acetate

Wandless, Tom

229

alkyl phosphonic extractant: Topics by E-print Network  

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

with Phosphonic Acids Katherine Henry, North Carolina State University, 2011 SURF Fellow Materials Science Websites Summary: . Two nonpolar solvents were used in conjunction with...

230

The Raman spectra of seventeen alkyl substituted cyclopentanes and cyclohexanes  

E-Print Network [OSTI]

Instramentt Cary Remen Spectropbotometer, Model 81 Single Slit: 0-200 cm I; Doable Slit: 150-4000 cm I Serial No. 438, Page 2 Temparatarer 28 C Tube Outside Dhuneterr 7 mm Spectral Slit Width: fhv ? 459 cm-lr 5 0 Excitbtg Liaer 4358. 35 II Observed...

Faubion, Billy Don

1965-01-01T23:59:59.000Z

231

Fragmentations of Deprotonated Alkyl Hydroperoxides (ROO Upon Collisional Activation  

E-Print Network [OSTI]

of these degradation products are acrolein, malondialdehyde and 4-hydroxy-2-nonenal, which are known to be genotoxic

Ellison, Barney

232

alkyl benzene sulfonate: Topics by E-print Network  

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

Hb, hemoglobin; MS, mass spectrometry; PBPK, physiologically based pharmacokinetic; SPC, S-phenylcysteine. Andrew B. Lindstrom; Suramya Waidyanatha; Rogelio Tonero-velez;...

233

alkyl benzene sulfonates: Topics by E-print Network  

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

Hb, hemoglobin; MS, mass spectrometry; PBPK, physiologically based pharmacokinetic; SPC, S-phenylcysteine. Andrew B. Lindstrom; Suramya Waidyanatha; Rogelio Tonero-velez;...

234

alkyl carbonate solution: Topics by E-print Network  

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

R. 13 Solution-processed single walled carbon nanotube electrodes for organic thin-film transistors Physics Websites Summary: t Airbrushed single walled carbon nanotube...

235

abs alkyl benzenesulfonates: Topics by E-print Network  

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

the magnetic field of its plasma cable. For creating this plasma cable the AB-Space Engine spends only some kg of hydrogen. Alexander Bolonkin 2008-03-02 13 Involvement of...

236

Early transitional metal alkyl, alkylidene, and alkylidyne chemistry  

E-Print Network [OSTI]

CHAPTER 1. Zirconium and hafnium complexes of several new unsymmetric diamide ligands have been prepared and their proficiency in olefin polymerization reactions evaluated. The first set of supporting ligands examined are ...

Tonzetich, Zachary John

2007-01-01T23:59:59.000Z

237

alkyl chain bending: Topics by E-print Network  

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

angle neutron scattering study Condensed Matter (arXiv) Summary: Microemulsion droplets (oil in water stabilized by a surfactant film) are progressively decorated with increasing...

238

alkyl silica microcolumn: Topics by E-print Network  

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

method, the recently developed pin-drying method for producing high-refractive-index aerogels with high transparency was studied in detail. Optical qualities and large tile...

239

alkyl ammonium salts: Topics by E-print Network  

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

of nutrients and heavy metals in experimental salt marsh ecosystems. Environmental Pollution,effects of nutrients and heavy metals in experimental salt marsh ecosystems....

240

What Do We Know About Ethanol and Alkylates as Pollutants?  

SciTech Connect (OSTI)

Gov. Davis issued Executive Order D-5-99 in March 1999 calling for removal of methyl tertiary butyl ether (MTBE) from gasoline no later than December 31, 2002. The Executive Order required the California Air Board, State Water Resources Control Board (SWRCB) and Office of Environmental Health Hazard Assessment (OEHHA) to prepare an analysis of potential impacts and health risks that may be associated with the use of ethanol as a fuel oxygenate. The SWRCB contracted with the Lawrence Livermore National Laboratory (LLNL) to lead a team of researchers, including scientists from Clarkson University, University of Iowa, and University of California, Davis, in evaluating the potential ground and surface water impacts that may occur if ethanol is used to replace MTBE. These findings are reported in the document entitled Health and Environmental Assessment of the Use of Ethanol as a Fuel Oxygenate. This document has been peer reviewed and presented to the California Environmental Policy Council and may be viewed at: http://www-erd.llnl.gov/ethanol/. Ethanol used for fuels is made primarily from grains, but any feed stock containing sugar, starch, or cellulose can be fermented to ethanol. Ethanol contains 34.7% oxygen by weight. It is less dense than water, but infinitely soluble in water. Ethanol vapors are denser than air. One and a half gallons of ethanol have the same energy as one gallon of gasoline. Pure fuel ethanol, and gasoline with ethanol, conducts electricity, while gasoline without ethanol is an insulator. Corrosion and compatibility of materials is an issue with the storage of pure ethanol and gasoline with high percentages of ethanol, but these issues are less important if gasoline with less than 10% ethanol is used.

Rich, D W; Marchetti, A A; Buscheck, T; Layton, D W

2001-05-11T23:59:59.000Z

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


241

alkyl sulfate surfactant: Topics by E-print Network  

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

from zinc nanoclasters size of several nanometers to ZnO fractal aggregates (FA) size up to hundreds of nanometers. Determinants of this process are the average power and an...

242

Oceanic alkyl nitrates as a natural source of tropospheric ozone  

E-Print Network [OSTI]

over the equatorial Pacific Ocean during Saga 3, J. Geophys.the troposphere over the Pacific Ocean during PEM- Tropics Ain the tropical Pacific Ocean, Geophys. Res. Lett. , 32,

Neu, Jessica L; Lawler, Michael J; Prather, Michael J; Saltzman, Eric S

2008-01-01T23:59:59.000Z

243

Batch polymerization of styrene initiated by alkyl lithiums  

E-Print Network [OSTI]

-butyl lithium using cyclohexane as the solvent, The polymerization is carried out in an isothermal batch reactor at a temperature of. 5D C. The proposed reaction proceeds by a homogenous anionic mechanism. The mathematical model developed by Edgar (6.... Bottles for Polymerization Reaction The reaction bottles used were twenty-six ounce coke bottles. The following procedure was adopted: First, clean the bottles thoroughly with soap and water. Then, rinse them with distilled water. Dry them overnight...

Desai, Rashmi R

1970-01-01T23:59:59.000Z

244

alkyl phenols activate: Topics by E-print Network  

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

phenolic content of the wine product was 689 mg GAEL. Investigation of influence of bottle ageing on the sea buckthorn wine showed a slight decrease in the phenolic content...

245

Solid Catalyzed Isoparaffin Alkylation at Supercritical Fluid and  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment2) 1/8 5/15/11Soliciting

246

The infrared and Raman spectra of N-alkyl ethylenimines  

E-Print Network [OSTI]

and Assi nments. . . . . . . . . . . . . . . , 5 A, Structural Considerations. . . . ~ . . . , . . . , 5 B, Assi"na ent of Spectra. . . . . . , . . . . . . . . . . 9 1, Yethod, 9 2. N-Yethyl Ethylenimine, . . . . , . . . . . . . 10 3. N-Ethyl... the Or ientation of the Principal Axes. Page 2. The Infrared Spectrum of I!-Yythyl Ethy- lenimine from 4000 to 50 cm . . . . . . . , . . . . 11 3. The Raman Spectrum of !! i~'. ethyl Ethylenimine. 13 4. The Infrared Spectrum of N-Ethyl Ethy- lenimine from...

Ashby, Theodore Leroy

1968-01-01T23:59:59.000Z

247

Allylation of acetanilides with allyl acetate under conditions of metal-complex catalysis combined with phase-transfer catalysis  

SciTech Connect (OSTI)

Acetanilides are alkylated at the nitrogen atom under the conditions of phase-transfer catalysis. For the case of the reaction of acetanilides with allyl acetate the authors showed that 2-alkenyl esters can be used for the alkylation of acetanilides under the conditions of phase-transfer catalysis in the presence of the complexes of zero valent palladium. N-Acetylskatole was obtained with a yield of 50% from N-allyl-2-bromoacetanilide by intramolecular cyclization in the presence of Od(OAc)/sub 2/ as catalyst.

Lebedev, S.A.; Leonova, Yu.P.; Berestova, S.S.; Petrov, E.S.

1988-10-20T23:59:59.000Z

248

A review of chromatographic characterization techniques for biodiesel and biodiesel blends.  

SciTech Connect (OSTI)

This review surveys chromatographic technology that has been applied to the characterization of biodiesel and its blends. Typically, biodiesel consists of fatty acid methyl esters produced by transesterification of plant or animal derived triacylglycerols. Primary attention is given to the determination of trace impurities in biodiesel, such as methanol, glycerol, mono-, di-, and triacylglycerols, and sterol glucosides. The determination of the fatty acid methyl esters, trace impurities in biodiesel, and the determination of the biodiesel content of commercial blends of biodiesel in conventional diesel are also addressed.

Pauls, R. E. (Chemical Sciences and Engineering Division)

2011-05-01T23:59:59.000Z

249

Quantitative NMR Analysis of Partially Substituted Biodiesel Glycerols  

SciTech Connect (OSTI)

Phosphitylation of hydroxyl groups in biodiesel samples with 2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane followed by 31P-NMR analysis provides a rapid quantitative analytical technique for the determination of substitution patterns on partially esterified glycerols. The unique 31P-NMR chemical shift data was established with a series mono and di-substituted fatty acid esters of glycerol and then utilized to characterize an industrial sample of partially processed biodiesel.

Nagy, M.; Alleman, T. L.; Dyer, T.; Ragauskas, A. J.

2009-01-01T23:59:59.000Z

250

Distribution of Phthalate Esters in a Marine Aquatic Food Web  

E-Print Network [OSTI]

, and polyurethanes, and as nonplasticizers in products such as lubricating oils, automobile parts, paints, glues

Gobas, Frank

251

allyl ester 8ci: Topics by E-print Network  

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

Low Band Gap Polymers" Weibin Cui and Fred Wudl Macromolecules, 46 (18): 7232-7238 (2013). DOI Link "A Montarnal, Nancy D. Eisenmenger, Sung-Yu Ku, Michael L....

252

acetates isoamyl esters: Topics by E-print Network  

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

any change in fuel injection parameters, but for higher substitution of diesel with biodiesel i.e. from 20 % to 100%, fuel injection pressure must be increased by 50 to 100...

253

acid diethyl ester: Topics by E-print Network  

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

in a process of auto-oxidation, the so-called "peroxidation". This is a free-radical and self-propagating reaction that may generate Paris-Sud XI, Universit de 28 Measurements...

254

Adsorption studies of phthalic acid esters in aqueous solutions  

E-Print Network [OSTI]

capacity for the sediments whose organic content was left intact. The uptake was incom- pletely reversible, and ODT was thought to have existed 1n1t1ally as a collo1dal d1spersion (80). Another study w1th DDT found that the humic acids from a mar1ne... space was proven to be responsible for analogous results w1th calc1te (9l). Adsorption on calcite has been studied in hopes of explain1ng the composition of the organic material 1n calcareous sediments and the dev1ations of marine concentrations...

Sullivan, Kevin Francis

1980-01-01T23:59:59.000Z

255

Springer-Verlag Berlin Heidelberg 2003 Bioaccumulation of Phthalate Esters  

E-Print Network [OSTI]

Bioaccumulation Factors BBP Butylbenzyl Phthalate BCFs Bioconcentration Factors BSAF Biota-Sediment Accumulation F

Gobas, Frank

256

Quantitative temperature effects on the saponification rates of aliphatic esters  

E-Print Network [OSTI]

. Heat of Activation Entro of Activati an Free Ener o t vat on Using Eyring's basic equation40 40. S. Glasstone K. J. Laidler, H. Eyring, "The Theory of, Rate Processes, " NcGraw-Hill Book Company, Inc. , New York, N. Y. , 1941: p. 195. k = K -2 (18...

Schreck, James Otto

1962-01-01T23:59:59.000Z

257

Production and Characterization of Jatropha Oil Methyl Ester  

E-Print Network [OSTI]

pollution concern. Utilization of biodiesel produced from Jatropha oil by transesterification process is one

P. Venkateswara Rao; G. Srinivasa Rao

258

Perfluoro Aryl Boronic Esters as Chemical Shuttle Additives | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSalesOE0000652Grow Your EnergyTechnologyPeople's Equal

259

Perfluoro Aryl Boronic Esters as Chemical Shuttle Additives  

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

Barriers * Barriers addressed - D. Abuse Tolerance, Reliability and Ruggedness - A. Cost - E. Life * Technical Target - to employ a redox shuttle molecule in a large format...

260

acid isopropyl ester: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 192 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

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


261

acid ethyl esters: Topics by E-print Network  

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

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 241 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

262

acid ethyl ester: Topics by E-print Network  

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

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 241 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

263

acid vinyl ester: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 280 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

264

acid monoethyl ester: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 180 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

265

acid ester prodrugs: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 194 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

266

acid allyl ester: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 239 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

267

acid phenylethyl ester: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 180 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

268

acrylic acid esters: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 242 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

269

acid dimethyl ester: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 227 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

270

acid propyl ester: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 191 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

271

acid esters inhibit: Topics by E-print Network  

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

ABSTRACT Boron is an essential micronutrient for plants and is taken up in the form of boric acid (BA for the inhibition of root growth caused by boron. We show that application...

272

acid dibutyl ester: Topics by E-print Network  

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

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 181 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

273

acid phenethyl ester: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 178 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

274

Preparation of thio and seleno sugar esters of dimethylantimonous acid  

E-Print Network [OSTI]

been found to counteract the toxic effects of selenium poisoning, 1, 2 The mechanism by which this detoxification occurs is believed to involve the conversion of selenium into a chemical form which causes it to leave the liver via the bile duct...-S-dimethyl- arsino-1-thio ? 8-D-glucopyranose have been reported to display anti ? tumor activity in vitro in the KB ? 9 tissue culture system. In addition, 1-S-dimethyl- 8 arsino-1-thio-8-D-glucopyranose has been found to be a potent...

Baimbridge, Charles Lynn

1975-01-01T23:59:59.000Z

275

Studies on the Base-Promoted Conversion of Conjugated Alkynyl Esters to r-Substituted r-Allenyl Esters  

E-Print Network [OSTI]

University, Boca Raton, Florida 33431 slepore@fau.edu Received July 18, 2004 We report the development Lett. 1972, 36, 3769. (2) Nguyen, D. T.; Elsevier: C. J. Vrieze, K. J. Organomet. Chem. 1987, 325 C23

Lepore, Salvatore D.

276

Poly ([beta]-amino ester)s as pH sensitive biomaterials for microparticulate genetic vaccine delivery  

E-Print Network [OSTI]

Genetic vaccination is the administration of nucleic acids to induce cellular expression of antigens, leading to an immune response. Unlike traditional vaccines, this technology has tremendous potential for treating or ...

Little, Steven (Steven Ronald)

2005-01-01T23:59:59.000Z

277

Solvation studies on anion radicals of alkyl nitrobenzene derivatives in acetonitrile-alkyl alcohol solvent mixtures at 25 p0 sC  

E-Print Network [OSTI]

) =CONST( IMI r K) TN( I ) =TO( I ) ?C(NP IBYZ+IMI ) RD= R 0+T 0 ( I ) 10 RN=RN+TiN ( I ) RDSQ=RD??2 RDCB=RDSQ?RD FO=RN/RD-Y(K) RDEN( 1)=RD RNUM( 1) =RN 00 20 I = 2 1 NPIBY2 IM1=1 ? I RDEN ( I ) =R DEN ( I Ml )- TD ( I Ml ) 20 RNUM( I ) =RNUM...( IMI)-TN( IMI) 00 95 I =1rNI4llBY'2 Fl. ( I ) =( RD?RNUM( I )-RN?RDEN( I ) ) / DO 90 J=NP18Y2 N MINUS= J-NM18Y2 82( lr J)=TD(MINUS)/(RDSQ?C(I ) ). IF(MINUSrLT ~ I ) GO TO 1010 F2(lrJ)= RDEN(I)?F2((rJ) RDSQ?C( I) GO TO 90 10 10 F2( I J) =(RD...

Chu, William Wen-Chen

2012-06-07T23:59:59.000Z

278

Microwave assisted photocatalysis of mono-chloroacetic acid over nanoporous titanium (IV) oxide thin films  

E-Print Network [OSTI]

Microwaves are well known for their heating effects on polar substances and are widely used domestically. The crystallite size of the sample was estimated under 10 nm. Specific surface area was determined from adsorption placed into the glass tube. The solution of MCAA was circulated by pump and reaction temperature

Cirkva, Vladimir

279

Mono-Z': searches for dark matter in events with a resonance and missing transverse energy  

E-Print Network [OSTI]

We analyze the potential dark matter implications of LHC events with missing transverse momentum and a resonance, such as a Z', decaying to a pair of jets or leptons. This final state contains significant discovery potential, but has not yet been examined in detail by the LHC experiments. We introduce models of Z' production in association with dark matter particles, propose reconstruction and selection strategies, and estimate the sensitivity of the current LHC dataset.

Autran, Marcelo; Lin, Tongyan; Whiteson, Daniel

2015-01-01T23:59:59.000Z

280

MONO1001 : A source for singly charged ions applied to the production of multicharged fullerene beams  

E-Print Network [OSTI]

(from pure C60 and C70 powder) will be shown and the influence of several source parameters (HF-power, support gas, gas pressure, ...) will be discussed specifying the conditions necessary for an optimum ion

Boyer, Edmond

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


281

DYNAMIC SIMULATION OF MONO-TUBE CAVITY RECEIVERS FOR DIRECT STEAM GENERATION  

E-Print Network [OSTI]

that includes a 4 cylinder steam engine coupled with a 3 phase generator. This paper describes ongoing research cavity receiver [2] mounted to the 500 m2 dish receiver supports, a modified steam engine coupled transports superheated steam via rotary joints to the ground and then to a 4 cylinder steam engine

282

EXPERIMENTAL VALIDATION OF A DYNAMIC MODEL FOR A MONO-TUBE CAVITY RECEIVER  

E-Print Network [OSTI]

power cycle. The steam engine is a modified 4 cylinder Diesel engine, coupled to an induction generator Burgess, John Pye Research School of Engineering, Australian National University, Canberra, ACT 0200, Australia Keywords: solar-thermal, direct steam generation, moving-boundary formulation, ANU Abstract

283

A theoretical study of fluorographene as substrates for mono-/Bi-layer graphene  

SciTech Connect (OSTI)

Using density functional theory, we discover fluorographene (CF) could help significantly preserve the superb electronic properties of graphene, depending on lattice stacking-order. Compared with h-BN, CF produces a much weaker screening effect for bilayer graphene when external electric field is applied, revealing a huge advantage in gap engineering. The studies suggest that fluorographene could be a promising route towards implementing highly functional substrate or gate dielectric materials for graphene-inspired device applications.

Guo, Zhendong, E-mail: yangxu-isee@zju.edu.cn; Fan, Lei, E-mail: yangxu-isee@zju.edu.cn; Mei, Lingqi, E-mail: yangxu-isee@zju.edu.cn; Xu, Yang, E-mail: yangxu-isee@zju.edu.cn [Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027 (China); Yu, Bin [College of Nanoscale Science and Engineering, State University of New York, Albany 12203 (United States)

2013-12-04T23:59:59.000Z

284

E-Print Network 3.0 - alkaline hypersaline mono Sample Search...  

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

Eng KineretDataCenterProfileDC.asp) and its lake sediments are also alkaline (Stiller and ... Source: Yager, Patricia L. - Department of Marine Sciences, University of...

285

The extraction of a mono-energetic neutron beam of maximum intensity from a nuclear reactor  

E-Print Network [OSTI]

all aluminum was taken because Mn has a high capture cross section for thermal neutrons and becomes highly radioactive Mn . Mn has a long half life and gives off 56 FIa 6 SHIELDING PLUG WITH CO I. LIMA TOR TUSE RVNNERS END VIEW POSITION I NS... the horizontal plane. Rather than try to construct a cylindrical boral liner for the tube, it was decided that a rectangular one would be much simpler to construct and would suit the purpose just as well. The rectangular liner was constructed to fit just...

Snow, Edward Clark

1965-01-01T23:59:59.000Z

286

ESTIMATION OF OUTLET MASS FLOW FOR A MONO-TUBE CAVITY RECEIVER FOR DIRECT STEAM GENERATION  

E-Print Network [OSTI]

University (ANU). Solar thermal power plants using this technology are intended to be deployed in large generation with large scale parabolic dishes. Simulations of the model show that it is possible to assume pressure and modelled fluid properties. Simulations show that this approach produces good agreement between

287

Ligand Tuning in Asymmetric Catalysis: Mono-and Bis-Phospholanes for a  

E-Print Network [OSTI]

-Catalyzed Asymmetric Allylation Reaction Yuan-Yong Yan and T. V. RajanBabu* Department of Chemistry, The Ohio State Uni of potassium dimethyl malonate to diphenylallyl acetate by the use of Pd(0) complexes of bis of these ligands for Pd- catalyzed asymmetric allylation reactions. The enantioselec- tivity imparted

RajanBabu, T. V. "Babu"

288

30TH INTERNATIONAL COSMIC RAY CONFERENCE Telescope Array Aperture: Mono, Stereo and Hybrid  

E-Print Network [OSTI]

-sky background photons are also considered in simulations by us- ing real observational data obtained at the site of Physics, University of Utah, Salt Lake City, UT 84112-0830, USA 4 Department of Physics and Astronomy purpose of TA is to de- termine the energy spectrum of ultra high energy cosmic rays, and a precise

289

ag-clad bipb-2223 mono: Topics by E-print Network  

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

energy signature at the LHC, and point out its significance on understanding how dark matter interacts with quarks, where the signature arises from dark matter pair production...

290

Heavy atom induced phosphorescence of organic materials using mono- and trifunctional organomercury derivatives  

E-Print Network [OSTI]

This dissertation focuses on the phosphorescence of organic chromophores using perfluoro-ortho-phenylene mercury (1) and bis(pentafluorophenyl)mercury (2) as external heavy atom effect inducers. To ascertain the suitability of these luminescent...

Burress, Charlotte Nicole

2009-05-15T23:59:59.000Z

291

Density functional study of CaN mono and bilayer on Cu(001)  

SciTech Connect (OSTI)

Density functional - pseudopotential calculations are performed to provide first-principles insights into magnetic behaviour of bulk CaN and CaN monolayers on Cu(001) in the rock-salt (RS) and zinc-blende (ZB) structures. Our results indicate that both RS- and ZB-CaN exhibit half-metallic ferromagnetism originated from the incomplete 2p shell of the nitrogen ion. In contrast to the bulk CaN, the CaN monolayers on Cu(001) generally favor ZB structure. We argue that the more stable ZB-CaN thin films on Cu(001) are nonmagnetic, because of strong Cu-N bonding at the interface, while the less stable Ca terminated ZB-CaN thin films exhibit half-metallic ferromagnetism. The transition path between the high energy ferromagnetic and the stable nonmagnetic configurations of the ZB-CaN monolayer on Cu(001) are studied by using the nudged elastic band method. We observe a two stages transition and an activation barrier of about 1.18 eV in the minimum energy path of this transition.

Zahedifar, Maedeh; Hashemifar, S. Javad, E-mail: hashemifar@cc.iut.ac.ir; Akbarzadeh, Hadi [Department of Physics, Isfahan University of Technology, Isfahan, 84156-83111 (Iran, Islamic Republic of)] [Department of Physics, Isfahan University of Technology, Isfahan, 84156-83111 (Iran, Islamic Republic of)

2014-01-15T23:59:59.000Z

292

THROUGH-BOND ENERGY TRANSFER CASSETTES FOR MULTIPLEXING & DEVELOPMENT OF METHODS FOR PROTEIN MONO-LABELING  

E-Print Network [OSTI]

.2 Synthesis of photolabile-protected Nile Red derivative 94....... 99 Scheme 4.3 Atachment of compound 94 on PEGA resin or aminopropyl-CPG. 100 Scheme 4.4 Synthesis of TBDPS-protected benzylbromide 99.............. 102 Scheme 4.5 Synthesis of Nile Red... reaction of resorcinol with phthalic anhydride catalyzed by zinc chloride was first reported in 1871 by von Baeyer. 14 Despite their widespread use in biological studies, fluorescein has some remarkable deficiencies. First and foremost, fluorescein...

Ueno, Yuichiro

2010-07-14T23:59:59.000Z

293

The Long Valley/Mono Basin Volcanic Complex: A Preliminary Magnetotelluric  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-gTaguspark JumpDetective Jump to: navigation,ICARDABiodiversityLondonand

294

Mono Hot Springs Pool & Spa Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 -Energieprojekte GmbHMilo,Energy InformationNortheast AsiaEnergy Information

295

Geologic Map of the Long Valley Caldera, Mono-Inyo Craters Volcanic Chain,  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, searchGeauga County, Ohio: EnergySector:2008) |Informationand

296

Casa Diablo/Long Valley Caldera Area, Mono County | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacility |Carpentersville,Carver, Massachusetts: EnergyCary,Casa

297

Hydrothermal Regime of the Southwest Moat of the Long Valley Caldera, Mono  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyName HousingIII WindHybridsCarCalifornia,on Openei

298

Combustion modeling of mono-carbon fuels using the rate-controlled constrained-equilibrium method  

SciTech Connect (OSTI)

The rate-controlled constrained-equilibrium (RCCE) method for simplifying the kinetics of complex reacting systems is reviewed. This method is based on the maximum entropy principle of thermodynamics and involves the assumption that the evolution of a system can be described using a relatively small set of slowly changing constraints imposed by the external and internal dynamics of the system. As a result, the number of differential and algebraic equations required to determine the constrained-equilibrium state of a system can be very much smaller than the number of species in the system. It follows that only reactions which change constraints are required to determine the dynamic evolution of the system and all other reactions are in equilibrium. The accuracy of the method depends on both the character and number of constraints employed and issues involved in the selection and transformation of the constraints are discussed. A method for determining the initial conditions for highly non-equilibrium systems is also presented. The method is illustrated by applying it to the oxidation of methane (CH{sub 4}), methanol (CH{sub 3}OH), and formaldehyde (CH{sub 2}O) in a constant volume adiabatic chamber over a wide range of initial temperatures, pressures, and equivalence ratios. The RCCE calculations were carried out using 8-12 constraints and 133 reactions. Good agreement with ''Detailed Kinetic Model'' (DMK) calculations using 29 species and 133 reactions was obtained. The number of reactions in the RCCE calculations could be reduced to 20 for CH{sub 4}, 16 for CH{sub 3}OH, and 12 for CH{sub 2}O without changing the results significantly affecting the agreement. It may be noted that a DKM with 29 species requires a minimum of 29 reactions. (author)

Janbozorgi, Mohammad; Ugarte, Sergio; Metghalchi, Hameed [Mechanical and Industrial Engineering Department, Northeastern University, Boston, MA 02115 (United States); Keck, James. C. [Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States)

2009-10-15T23:59:59.000Z

299

Naphthenic acid corrosion and its control  

SciTech Connect (OSTI)

This paper first presents a brief description of naphthenic acid corrosion and the main factors which influence its onset and severity. After a brief discussion of traditional control methods, it proceeds to a discussion of chemical inhibition, which is a relatively new control technique. Chemical inhibitors can be divided into two broad classifications: phosphorus-based and non-phosphorus-based. Three types of phosphorus-based inhibitors have been reported: amine-neutralized phosphate esters, alkaline earth phosphonate phenate sulfide plus trialkyl phosphate, and thiazolines plus di and tri-alkyl phosphates. Non-phosphorus based inhibitors include: thiazolines, organic polysulfides, and sulfonated alkyl phenols. A description of each inhibitor and its effectiveness in the laboratory and field is presented.

Zetlmeisl, M.J. [Petrolite Corp., St. Louis, MO (United States)

1996-08-01T23:59:59.000Z

300

E-Print Network 3.0 - alkyl polyglucoside surfactants Sample...  

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

published by the American Chemical Society. 1155 Sixteenth Street N.W., Summary: of the Surface Tension of Polymer-Surfactant Systems Christopher G. Bell, Christopher J. W....

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


301

E-Print Network 3.0 - alkyl aryl ketones Sample Search Results  

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

Columbia University Collection: Chemistry 60 Production of 11C-Labeled Summary: . 11CCarbon Monoxide - For preparation of 11C-labeled ketones from iodides (1) Radiochemical...

302

E-Print Network 3.0 - alkyl tantalum imido Sample Search Results  

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

For example, the tantalum(III) compound (silox)3Ta... (silox t Bu3SiO- ) cleaves carbon monoxide to give tantalum oxo and dicarbide species (silox)3Ta Source: Groningen,...

303

Enantioselective Organocatalytic Indole Alkylations. Design of a New and Highly Effective Chiral Amine for Iminium Catalysis  

E-Print Network [OSTI]

structural motifs of established value in medicinal chemistry or complex target synthesis. In this regard the capacity of iminium catalysis to mediate the enantioselective coupling of pyrroles and R, -unsaturated alde nucleophiles. Despite struc- tural similarities, it has long been established7 that the pyrrole -system

MacMillan, David W. C.

304

E-Print Network 3.0 - alkyl-quinolone-independent regulatory...  

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

online at www.sciencedirect.com Genomes and evolution: advances in deciphering the genomics of Summary: -throughput characterization of the DNA- binding specificities and...

305

Novel mixed organoboranes for the reductive alkylation of p-benzoquinone  

E-Print Network [OSTI]

sulfide complex (BMS), 61 BH 3 -SMe 2 . Borane complexes aredimethyl sulfide, H 3 B·SMe 2 (BMS). Hydroboration reactionsdimethyl sulfide, HBX 2 ·SMe 2 . 103 In contrast to

Hincapié, Gloria

2011-01-01T23:59:59.000Z

306

Alkylation of Phenol: A Mechanistic View Qisheng Ma, Deb Chakraborty, Francesco Faglioni, Rick P. Muller, and  

E-Print Network [OSTI]

imparts improved perfor- mance properties to the class of metallic detergents used in lubricating oils as additives in gasoline, lubricants, and as hosts of consumer products. For instance, the p-alkylphenol isomer industries as drilling oil additives, antioxidants, and polymer stabilizers.1 Both homogeneous

Goddard III, William A.

307

Growth and stability of oxidation resistant Si nanocrystals formed by decomposition of alkyl silanes  

SciTech Connect (OSTI)

The synthesis and characterization of 1-10 nm Si nanocrystals highly resistant to oxidation is described. The nanocrystals were prepared by thermal decomposition of tetramethylsilane at 680 C, or in a gold- induced catalytic process at lower temperatures down to 400-450 C using trioctylamine as an initial solvent. Transmission electron microscopic analysis of samples obtained in the presence of gold show that the nanocrystals form via solid-phase epitaxial attachment of Si to the gold crystal lattice. The results of computational modeling performed using first principles density functional theory (DFT) calculations predict that the enhanced stability of nanocrystals to oxidation is due to the presence of N or N-containing groups on the surface of nanocrystals.

Zaitseva, N; Hamel, S; Dai, Z R; Saw, C; Williamson, A J; Galli, G

2007-01-12T23:59:59.000Z

308

Alkyl nitrate (C 1 -C 3 ) depth profiles in the tropical Pacific Ocean  

E-Print Network [OSTI]

Experiment (WOCE), vol. 2, Pacific Ocean DRAFT, edited by M.over the equatorial Pacific Ocean during SAGA 3, J. Geophys.the troposphere over the Pacific Ocean during PEM- Tropics A

Dahl, E. E; Yvon-Lewis, S. A; Saltzman, E. S

2007-01-01T23:59:59.000Z

309

Palladium-Catalyzed Asymmetric Alkylation in the Synthesis of Cyclopentanoid and Cycloheptanoid Core Structures Bearing All-  

E-Print Network [OSTI]

, iodoethane, acrylonitrile, methyl vinyl ketone, and acrolein were distilled prior to use. Purified water

Stoltz, Brian M.

310

E-Print Network 3.0 - alkylated three-ring pahs Sample Search...  

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

rings has advanced significantly. Bacterial isolates, which... N CH3 NO2 NO2 O2N NO2 BTEX PAHs PCBs Chlorinated aliphatics Aliphatic petroleum hydrocarbons... that many classes...

311

ADSORPTION/DESORPTION STUDIES ON SOLID ACID ALKYLATION CATALYSTS USING A TAPERED ELEMENT OSCILLATING MICROBALANCE (TEOM)  

E-Print Network [OSTI]

was found to be the most economical option to enable reasonable wall thickness and bed height for the reactors. The vapor products exiting the reactors pass though the final stage of the compressor to achieve the desired inlet pressure for each reactor... are employed. The vapor products (CO2-rich) of both flash tanks and the distillation column are fed into the compressor and recycled back to the reactor inlets. Once CO2 separation is achieved, Figure 2-2 19 illustrates that the product recovery steps...

Gong, Kening

2008-10-23T23:59:59.000Z

312

E-Print Network 3.0 - alkylated trimethylene-bridged bisp-phenylenedia...  

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

the tetraisopropyl-substituted bis-trimethylene-bridged... . The trimethylene-bridged 1(iPr)+ has its NIR-Vis spectrum in HFP (Figure 6) noticeably broadened compared to the...

313

Alkyl nitrate (C 1 -C 3 ) depth profiles in the tropical Pacific Ocean  

E-Print Network [OSTI]

concentrations with a [ iPr]/[Et] ratio of 0.1±0.0. Noat all depths with an [iPr]/[Et] ratio of 0.2 ± 0.0. Thiswith ethyl nitrate with an [iPr]/[Et] ratio of 0.2 ± 0.0.

Dahl, E. E; Yvon-Lewis, S. A; Saltzman, E. S

2007-01-01T23:59:59.000Z

314

E-Print Network 3.0 - alkylated methotrexate analogues Sample...  

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

major... methotrexate resistance in Leishmania. J Biol Chem 267: 24165-24168. Cavazzuti, A., Paglietti, G., Hunter, W Source: Fairlamb, Alan - Division of Biological...

315

E-Print Network 3.0 - alkyl-chain-length-independent hole mobility...  

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

E... March 2006 Abstract The effects of low hole mobilities in the intrinsic layer of pin solar cells... larger than hole values. The models reveal that a low hole ... Source:...

316

Novel mixed organoboranes for the reductive alkylation of p-benzoquinone  

E-Print Network [OSTI]

with methyl vinyl ketone or acrolein 20 was found to beWhen this is reacted with acrolein, 15% of the product is 4-

Hincapié, Gloria

2011-01-01T23:59:59.000Z

317

E-Print Network 3.0 - alkyl benzene sulphonates Sample Search...  

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

S 1 1 Benzaanthracene 56-55-3 S 2A 2 Benzal chloride 98-87-3 S 2A Benzene 71-43-2 ORC 1 1... tar distillate 065996-92-1 S 1 Coal tar pitch volatiles, as benzene solubles...

318

Micelle formation and surface activity of functional redox relays: viologens substituted by a long alkyl chain  

SciTech Connect (OSTI)

Viologens are receiving increasing attention from 2 major domains. First, photo- and electroreproductive processes are being developed which exploit the pronounced chromophore effect associated with the one-electron reduction of the viologens: the 2+ state is practically colorless, while the 1+ state has an intense color. However, the most prominent impact in viologen-related research arises from their use as mediators, sometimes referred to as electron relays, in the photionduced generation of hydrogen from water. Photobiologists had discovered earlier that methyl viologen in chloroplast suspensions is suited to act as a Hill reagent which can be coupled with hydrogenase to yield H/sub 2/ under illumination. More recently, in vitro systems have been developed in which synthetic dyes replace the chloroplasts as redox sensitizers. These have been shown to be remarkably effective in H/sub 2/ production. The surfactant and micellar properties of a series of potent candidates, i.e., long-chain-substituted viologens are investigated.

Krieg, M.; Pileni, M.P.; Braun, A.M.; Gratzel, M.

1981-09-01T23:59:59.000Z

319

Influence of alkyl chain substitution on sexithienyl-metal interface morphology and energetics  

E-Print Network [OSTI]

of devices, such as organic light emitting diodes, solar cells, or field effect transistors, lower- ing-pass cylindrical mirror analyzer with an energy resolution of 0.15 eV measured as 80% to 20% intensity drop for a metal Fermi edge and a photon energy of 22 eV. The secondary electron cutoffs CO for determi- nation

Peters, Achim

320

E-Print Network 3.0 - alkyl c12-c16 dimethyl Sample Search Results  

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

voltage in lithium-lithium cell cycling are examined. Increasing the length of the monomer ... Source: Khan, Saad A. - Department of Chemical and Biomolecular Engineering,...

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


321

E-Print Network 3.0 - alkyl benzenesulfonates Sample Search Results  

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

7 Adsorption of Sodium Dodecyl Sulfate and Sodium Dodecyl Benzenesulfonate on Poly(Vinyl Chloride) Latexes Summary: 1 Adsorption of Sodium Dodecyl Sulfate and Sodium Dodecyl...

322

E-Print Network 3.0 - alkyl hydroxyperoxide reductase Sample...  

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

Figure 1. Root lengths of S. pinnata and S. albescens grown on vertically placed agar plates after 30 days of growth from germination. Plants treated without () Se (open...

323

E-Print Network 3.0 - alkyl dimethyl benzyl Sample Search Results  

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

acceptable, but models show that it Summary: -Alder reaction of dimethyl 1,2,4,5-tetrazine-3,6-dicarboxylateand a subsequent in- tramolecular Diels... : the inverse electron...

324

alkyl-substituted pyridinium salts: Topics by E-print Network  

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

Galactic extinction curve, which implies that the properties of dust in the extragalactic enviroment are similar to those of the Milky Way. The ratio of the total V band extinction...

325

E-Print Network 3.0 - alkyl anion equivalents Sample Search Results  

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

substrates for anion uniport by the uncoupling protein of brown ... Source: Garlid, Keith - Department of Biology, Portland State University Collection: Biology and Medicine...

326

alkyl tert-butyl ether: Topics by E-print Network  

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

by Fusarium solani CiteSeer Summary: Fusarium solani degraded methyl tert-butyl ether (MTBE) and other oxygenated compounds from gasoline including tert-butyl alcohol (TBA). The...

327

Radiosensitizing activity of 1-alkyl-3-nitropyrrolo-(2,3-b)-pyridine derivative  

SciTech Connect (OSTI)

Radiosensitization characteristics of a newly synthesized N-(3,N'-morpholinpropyl)-2-(3-nitropyrrolo-(2,3-b)-pyridine -1-yl) ethanoic acid amide and the chemical basis of the action were studied. Partition coefficient, redox potentials for the one electron reduction of the compound were determined. This was confirmed by studies on the radiosensitization effect and cytotoxicity of the compound tested in vitro using Chinese hamster V79 cells. The results show that the sensitizing efficiency for this compound is C1.6 at a concentration of 0.5 mmol dm-3, which is similar to MISO. Its toxicity was not lower than that of MISO or metronidazole.

Jin, Y.Z.; Stratford, I.J.

1989-02-01T23:59:59.000Z

328

Chemical biology of mutagenesis and DNA repair: cellular responses to DNA alkylation  

E-Print Network [OSTI]

The reaction of DNA-damaging agents with the genome results in a plethora of lesions, commonly referred to as adducts. Adducts may cause DNA to mutate, they may represent the chemical precursors of lethal events and they ...

Shrivastav, Nidhi

329

International Journal of Mass Spectrometry 248 (2006) 18 Molecular hydrogen ion elimination from alkyl iodides  

E-Print Network [OSTI]

reported on many occasions [1­7]. Recently, we have studied the ionization/dissociation pro- cesses of some 26510 98695. E-mail address: kkosmid@cc.uoi.gr (C. Kosmidis). ethane, propane, etc.) has been studied of propane, Tonokura et al. [13] have shown that the atomic hydrogen elim- ination channel exhibits a site

Strathclyde, University of

330

E-Print Network 3.0 - ammonium compounds n-alkyl Sample Search...  

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

which are incompatible with other compounds. Summary: compounds, fulminic acid Sodium carbon tetrachloride, carbon dioxide, water Sodium nitrite ammonium nitrate... chemicals...

331

Cleavage of Carbon-Carbon Bonds in Alkyl Cyanides Using Nickel(0)  

E-Print Network [OSTI]

of [(dippe)Ni(CN)2] (11). Reaction of 1 with acetonitrile in the presence of BPh3 gives [(dippe)Ni(2 -Me in that field have been published by Parkin with the use of ansa-molybdenocenes to activate acetonitrile under.6 A related photochemical activation of acetonitrile by Cp(CO)2Fe- (SiMe3) has been recently

Jones, William D.

332

The Structure and Phase Diagram of Chiral Alkyl-Serine Monolayers on Mercury  

SciTech Connect (OSTI)

The structure of liquid-mercury-supported Langmuir films (LFs) of chiral serine-modified fatty acid molecules was studied as a function of length, n = 8-22 carbons, temperature, T = 5-25 C, and surface coverage, A {approx} 40-200 {angstrom}{sup 2} per molecule, for both homochiral and heterochiral compounds. Using surface pressure {pi}-area A isotherms and surface-specific synchrotron X-ray diffraction methods the phase diagram was determined in detail. No lateral order was found for phases comprising surface-parallel molecules, in contrast with unmodified fatty acid LFs on mercury. For phases comprising standing-up molecules, long range lateral order was found for n {>=} 12, but no order for n = 8. The molecules in the ordered phases are extended, and tilt rigidly by {approx}40{sup o} from the surface normal. The homochiral LFs pack in an oblique, single-molecule, unit cell. The heterochiral LFs pack in a body-centered rectangular unit cell, containing two molecules. Unlike unmodified fatty acid LFs, the structure of the standing-up phase does not vary with n, T or A. The interactions underlying these characteristics, and the role of chirality, are discussed.

L Tamam; D Medina; T Menahem; Y Mastai; E Sloutskin; S Yefet; M Deutsch

2011-12-31T23:59:59.000Z

333

E-Print Network 3.0 - alkyl thiolate monolayers Sample Search...  

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

Materials Science ; Chemistry 2 Sonication-Assisted Synthesis of Large, High-Quality Mercury Thiolate Single Crystals Directly from Liquid Mercury Summary: Sonication-Assisted...

334

A Simple, Accurate Model for Alkyl Adsorption on Late Transition Metals. |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011A FirstEMSL Shell Model forIron atEMSL

335

Inductive Effect of Alkyl Chains on Alcohol Dehydration at Bridge-Bonded  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching.348ASSEMBLY [ICO] Name LastNewsControlled

336

Alcohol Chemistry on Rutile TiO2(110): The Influence of Alkyl Substituents  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre theAdministratorCFMFusion Research Program 2003-2008on

337

Molecular simulation study of nanoscale friction between alkyl monolayers on Si,,111... immersed in solvents  

E-Print Network [OSTI]

of friction at different interfaces in various solvents is very important to micro- or nanoelectro- mechanical.1063/1.1578055 I. INTRODUCTION Micro- or nanoelectromechanical systems MEMS/ NEMS are the integration/hydrophobic hydrophilic/hydrophilic hydro- philic/hydrophobic interfaces in water.8,13 Thus, it is ex- pected

Zhang, Luzheng

338

The Action of Certain Acid Reagents on the Substituted Ureas  

E-Print Network [OSTI]

aniline and methyl phenyl urea chloride with pyridine - 6 Di-phenyl ethyl thio urea and phosgene with pyridine 7 Para mono brom di-phenyl thio urea and methyl phenyl urea chloride - 8 Di-phenyl thio urea and chlor formic ethyl ester with pyridine 9... Methyl ether of di-phenyl thio urea and methyl phenyl urea chloride with pyridine - - 10 Ethyl ether of ortho di-tolyl thio urea and methyl phenyl urea chloride 13 Ethyl ether of ortho di-tolyl thio urea and di-phenyl urea chloride 14 Methyl ether...

Brewster, Ray Q.

1915-01-01T23:59:59.000Z

339

Molecular water oxidation catalyst  

DOE Patents [OSTI]

A dimeric composition of the formula: ##STR1## wherein L', L", L'", and L"" are each a bidentate ligand having at least one functional substituent, the ligand selected from bipyridine, phenanthroline, 2-phenylpyridine, bipyrimidine, and bipyrazyl and the functional substituent selected from carboxylic acid, ester, amide, halogenide, anhydride, acyl ketone, alkyl ketone, acid chloride, sulfonic acid, phosphonic acid, and nitro and nitroso groups. An electrochemical oxidation process for the production of the above functionally substituted bidentate ligand diaqua oxo-bridged ruthenium dimers and their use as water oxidation catalysts is described.

Gratzel, Michael (St. Sulpice, CH); Munavalli, Shekhar (Bel Air, MD); Pern, Fu-Jann (Lakewood, CO); Frank, Arthur J. (Lakewood, CO)

1993-01-01T23:59:59.000Z

340

Metal Carbonyl-Hydrosilane Reactions and Hydrosilation Catalysis  

SciTech Connect (OSTI)

Manganese carbonyl complexes serve as hydrosilation precatalysts for selectively transforming a carbonyl group into a siloxy methylene or a fully reduced methylene group. Substrates of interest include (1) aldehydes, ketones, carboxylic acids, silyl esters, and esters, and (2) their organometallic acyl counterparts. Three relevant catalytic reactions are shown. Two types of manganese precatalysts have been reported: (a) alkyl and acyl complexes (L)(C0){sub 4}MnR [L = CO, PPh{sub 3}; R = COCH{sub 3}, COPh, CH{sub 3}] and (b) halides (CO){sub 5}MnX and [(CO){sub 4}MnX]{sub 2} (X = Br, I). The former promote hydrosilation and deoxygenation catalysis; the latter promote dehydrogenative silation of alcohols and carboxylic acids as well as hydrosilation and deoxygenation of some metallocarboxylic acid derivatives. In every case studied, these Mn precatalysts are far more reactive or selective than traditional Rh(I) precatalysts.

Cutler, A. R.

2001-04-14T23:59:59.000Z

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


341

Copolymers useful as additives for lowering the cloud point of middle hydrocarbon distillates, and compositions of middle hydrocarbon distillates comprising them  

SciTech Connect (OSTI)

Products useful as additives for lowering the cloud point of middle distillates have a molecular weight from 1,000 to 50,000, and are obtained by reacting a compound of the formula R-Z((CH/sub 2/) /SUB n/ NH) /SUB m/ H or HO-CH/sub 2/-R'-NH/sub 2/ where R is a monovalent saturated aliphatic radical of 1-30 carbon atoms, Z is -NH- or oxygen, n is 2 to 4, m is zero or 1 to 4 and R' is a saturated divalent aliphatic radical of 1-18 carbon atoms, with a copolymer comprising recurrent units (A) from an alkyl ester of an unsaturated monocarboxylic acid and/or a vinyl ester of a saturated monocarboxylic acid, recurrent units (B) from diisobutylene and recurrent units (C) from an unsaturated a,b-dicarboxylic compound.

Durand, J. P.; Damin, B.; Dawans, F.; Leger, R.

1985-03-05T23:59:59.000Z

342

Coupled Dynamic Analysis of Large-Scale Mono-Column Offshore Wind Turbine with a Single Tether Hinged in Seabed  

E-Print Network [OSTI]

The increased interest in the offshore wind resource in both industry and academic and the extension of the wind field where offshore wind turbine can be deployed has stimulated quite a number of offshore wind turbines concepts. This thesis presents...

Chen, Jieyan

2012-10-19T23:59:59.000Z

343

PAPER www.rsc.org/dalton | Dalton Transactions Some transition metal complexes derived from mono-and  

E-Print Network [OSTI]

, 35042, Rennes, France d Laboratoire de Chimie, UMR CNRS 5182, ´Ecole Normale Sup´erieure de Lyon, 46 all

Paris-Sud XI, Université de

344

Saturated hydraulic conductivity determined by on ground mono-offset Ground-Penetrating Radar inside a single ring infiltrometer  

E-Print Network [OSTI]

In this study we show how to use GPR data acquired along the infiltration of water inside a single ring infiltrometer to inverse the saturated hydraulic conductivity. We used Hydrus-1D to simulate the water infiltration. We generated water content profiles at each time step of infiltration, based on a particular value of the saturated hydraulic conductivity, knowing the other van Genuchten parameters. Water content profiles were converted to dielectric permittivity profiles using the Complex Refractive Index Method relation. We then used the GprMax suite of programs to generate radargrams and to follow the wetting front using arrival time of electromagnetic waves recorded by a Ground-Penetrating Radar (GPR). Theoretically, the 1D time convolution between reflectivity and GPR signal at any infiltration time step is related to the peak of the reflected amplitude recorded in the corresponding trace in the radargram. We used this relation ship to invert the saturated hydraulic conductivity for constant and fallin...

Léger, Emmanuel; Coquet, Yves

2013-01-01T23:59:59.000Z

345

Z-Selective and Syndioselective Ring-Opening Metathesis Polymerization (ROMP) Initiated by MonoAryloxidePyrrolide (MAP) Catalysts  

E-Print Network [OSTI]

We report the Z-selective and syndioselective polymerization of 2,3-bis(trifluoromethyl)bicyclo[2.2.1]hepta-2,5-diene (NBDF6) and 3-methyl-3-phenylcyclopropene (MPCP) by monoaryloxide monopyrrolide imido alkylidene (MAP) ...

Flook, Margaret M.

346

Monodisperse SiC/vinyl ester nanocomposites: Dispersant formulation, synthesis, and characterization  

E-Print Network [OSTI]

and composites with epoxy resins: Topography, fractographyreinforced polypropylene and epoxy resin composites. Compos.filled polypropylene and epoxy resin com- posites, 22 carbon

Yong, Virginia; Hahn, H. Thomas

2011-01-01T23:59:59.000Z

347

Low Temperature Autoignition of C8H16O2 Ethyl and Methyl Esters...  

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

500 600 700 800 900 1000 300 320 340 360 380 400 420 Apparent Heat Release Rate (kJDeg) Bulk Cylinder Gas Temperature (K) CA (Deg) -0.01 0.01 0.03 0.05 0.07 0.09 0.11 50 250 450...

348

{gamma} Irradiation-induced degradation of organochlorinated pollutants in fatty esters and in Cod  

SciTech Connect (OSTI)

The {gamma} irradiation-induced degradation of 2,2-bis(4-chlorophenyl)-1,1,1-trichloroethane (DDT), 2,2-bis(4-chlorophenyl)-1,1-dichloroethane (DDD), and 2,2-bis(4-chlorophenyl)-1,1-dichloroethylene (DDE) dissolved in methyl myristate and methyl oleate was studied. DDT and DDE produced DDD and 2,2-bis(4-chlorophenyl)chloroethylene (DDMU) respectively, in agreement with a previous study performed with aliphatic solvents. The degradation of these two former compounds was larger in methyl myristate than in methyl oleate and addition products between methyl myristate and the organochlorines were found. While DDD, DDE, and many PCB congeners in a cod sample were not measurably degraded at 15 KGy, DDT underwent 30% degradation. 9 refs., 1 fig., 2 tabs.

Lepine, F.L.; Brochu, F.; Milot, S. [Institut Armand-Frappier, Quebec (Canada)] [and others

1995-02-01T23:59:59.000Z

349

Experimental and Computational Thermochemical Study of 2-and 3-Thiopheneacetic Acid Methyl Esters  

E-Print Network [OSTI]

, biodiagnostics, electronic and optoelectronic devices, and conductive polymers. The present study reports found widespread use in modern drug design,3 biodiagnostics,4 electronic and optoelectronic devices,5

Chickos, James S.

350

A comparison of lipase-catalyzed ester hydrolysis in reverse micelles, organic solvents, and biphase systems  

SciTech Connect (OSTI)

The performance of lipases from Candida rugosa and wheat germ have been investigated in three reaction media using three acetate hydrolyses as model reactions (ethyl acetate, allyl acetate, and prenyl acetate). The effect of substrate properties and water content were studied for each system (organic solvent, biphasic system, and reverse micelles). Not unexpectedly, the effect of water content is distinct for each system, and the optimal water content for enzyme activity is not always the same as that for productivity. A theoretical model has been used to simulate and predict enzyme performance in reverse micelles, and a proposed partitioning model for biphasic systems agrees well with experimental results. While the highest activities observed were in the micellar system, productivity in microemulsions is limited by low enzyme concentrations. Biphasic systems, however, support relatively good activity and productivity. The addition of water to dry organic solvents, combined with the dispersion of lyophilized enzyme powders in the solvent, resulted in significant enzyme aggregation, which not surprisingly limits the applicability of the ``anhydrous`` enzyme suspension approach.

Yang, F.; Russell, A.J. [Univ. of Pittsburgh, PA (United States)

1995-07-05T23:59:59.000Z

351

Phosphine-catalyzed asymmetric additions of malonate esters to gamma-substituted allenoates and allenamides  

E-Print Network [OSTI]

Because carbonyl groups are ubiquitous in organic chemistry, the ability to synthesize functionalized carbonyl compounds, particularly enantioselectively, is an important objective. We have developed a straightforward and ...

Sinisi, Riccardo

352

Retinyl Ester Formation by Lecithin:Retinol Acyltransferase Is a Key Regulator of Retinoid Homeostasis in  

E-Print Network [OSTI]

embry- ogenesis. Dams lacking both LRAT and retinol-binding protein (RBP), the sole specific carrier. We hypothesized that the lack of both proteins would make the embryo more vulnerable to changes for retinol in serum, were main- tained on diets containing different amounts of vitamin A dur- ing pregnancy

Palczewski, Krzysztof

353

Biometal Catalyzed Ring-Opening Polymerization of Cyclic Esters: Ligand Design, Catalyst Stereoselectivity, and Copolymer Production  

E-Print Network [OSTI]

, Donald J. Darensbourg Committee Members, Abraham Clearfield Timothy R. Hughbanks Jean-Philippe Pellois Head of Department, David H. Russell May 2011 Major Subject: Chemistry iii ABSTRACT Biometal Catalyzed Ring-Opening Polymerization... me to continue on to graduate school. Dr. Abraham Clearfield, Dr. Jean-Philippe Pellois, Dr. Marcetta Y. Darensbourg, and Dr. Timothy R. Hughbanks are to be thanked for being involved in my education, for their guidance and assistance when needed...

Karroonnirun, Osit

2012-07-16T23:59:59.000Z

354

Vinyl Ester Resin: Rheological Behaviors, Curing Kinetics, Thermomechanical, and Tensile Properties  

E-Print Network [OSTI]

, Integrated Composites Laboratory (ICL), Lamar University, Beaumont, TX 77710 Xi Zhang and Suying Wei Dept. of Chemistry and Biochemistry, Lamar University, Beaumont, TX 77710 Henry A. Colorado Dept. of Mechanical

Guo, John Zhanhu

355

Membrane-permeant Esters of Phosphatidylinositol 3,4,5-Trisphosphate*  

E-Print Network [OSTI]

signaling cas- cades. A reliable means to introduce these lipids into intact cells would be of great value growth factor in inhibiting chloride secretion and potassium efflux, suggesting that phosphatidylinositol's action. The recent discovery of D-3 phosphorylated inositol lipids and their biosynthesis by a family

Tsien, Roger Y.

356

Saponification rates of isomeric butyl esters in aqueous 1,4-dioxane  

E-Print Network [OSTI]

. Jensen, G. M. Watson and J. B. Beckham, Anal. Chem., 23, 1711-8(1951). (21). F. Daniels, J. H. Mathews and J, W. Williams, "Experimental Physical Chemistry," 3rd. ed., McGraw-Hill Book Co., Inc., New York, N. Y., 19*4-1, p. 167. (22). S. Glasstone...

Ruhnke, Edward Vincent

1954-01-01T23:59:59.000Z

357

Effect of Unburned Methyl Esters on the NOx Conversion of Fe-Zeolite SCR Catalyst  

SciTech Connect (OSTI)

Engine and flow reactor experiments were conducted to determine the impact of biodiesel relative to ultra-low-sulfur diesel (ULSD) on inhibition of the selective catalytic reduction (SCR) reaction over an Fe-zeolite catalyst. Fe-zeolite SCR catalysts have the ability to adsorb and store unburned hydrocarbons (HC) at temperatures below 300 C. These stored HCs inhibit or block NO{sub x}-ammonia reaction sites at low temperatures. Although biodiesel is not a hydrocarbon, similar effects are anticipated for unburned biodiesel and its organic combustion products. Flow reactor experiments indicate that in the absence of exposure to HC or B100, NO{sub x} conversion begins at between 100 and 200 C. When exposure to unburned fuel occurs at higher temperatures (250-400 C), the catalyst is able to adsorb a greater mass of biodiesel than of ULSD. Experiments show that when the catalyst is masked with ULSD, NO{sub x} conversion is inhibited until it is heated to 400 C. However, when masked with biodiesel, NO{sub x} conversion is observed to begin at temperatures as low as 200 C. Engine test results also show low-temperature recovery from HC storage. Engine tests indicate that, overall, the SCR system has a faster recovery from HC masking with biodiesel. This is at least partially due to a reduction in exhaust HCs, and thus total HC exposure with biodiesel.

Williams, A.; Ratcliff, M.; Pedersen, D.; McCormick, R.; Cavataio, G.; Ura, J.

2010-03-01T23:59:59.000Z

358

Vinylogous Esters and Amides: Useful Synthons for Diversity-Oriented and Natural Product Synthesis  

E-Print Network [OSTI]

The first total synthesis of boehmeriasin A was achieved in seven steps from readily available materials with an overall yield of 29%. The absolute stereochemistry of the natural product was determined to be of the ...

Leighty, Matthew

2009-05-04T23:59:59.000Z

359

E-Print Network 3.0 - anhydroecgonine methyl ester Sample Search...  

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

Idaho Collection: Environmental Sciences and Ecology 9 A Novel Post-translational Modification of Yeast Elongation Factor 1A Summary: that is released as volatile methyl groups...

360

Biodegradable microfluidic scaffolds for tissue engineering from amino alcohol-based poly(ester amide) elastomers  

E-Print Network [OSTI]

Biodegradable polymers with high mechanical strength, flexibility and optical transparency, optimal degradation properties and biocompatibility are critical to the success of tissue engineered devices and drug delivery ...

Wang, Jane

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


361

SciTech Connect: Determination of Total Lipids as Fatty Acid Methyl Esters  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systems controllerAdditiveBetatronAerogel Deep BedDemonstration

362

Preparation of Propylene Glycol Fatty Acid Ester or Other Glycol, or Polyol  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - SeptemberMicroneedles for medical point07.06 AgendaPreparation for aFatty Acid

363

Hydrogenated soy ethyl ester (HySEE) from ethanol and waste vegetable oil  

SciTech Connect (OSTI)

Biodiesel is gaining recognition in the United States as a renewable fuel which may be used as an alternative to diesel fuel without any modifications to the engine. Currently the cost of this fuel is the factor that limits its use. One way to reduce the cost of biodiesel is to use a less expensive form of vegetable oil such as waste oil from a processing plant. These operations use mainly hydrogenated soybean oil, some tallow and some Canola as their frying oils. It is estimated that there are several million pounds of waste vegetable oil from these operations. Additional waste frying oil is available from smaller processors, off-grade oil seeds and restaurants. This paper reports on developing a process to produce the first 945 liters (250 gallons) of HySEE using recipes developed at the University of Idaho; fuel characterization tests on the HySEE according to the ASAE proposed Engineering Practice for Testing of Fuels from Biological Materials, X552; short term injector coking tests and performance tests in a turbocharged, DI, CI engine; and a 300 hour screening test in a single cylinder, IDI, CI engine.

Peterson, C.; Reece, D.; Thompson, J. [Univ. of Idaho, Moscow, ID (United States)] [and others

1995-11-01T23:59:59.000Z

364

E-Print Network 3.0 - adipate ester contents Sample Search Results  

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

(DOA) and myristic acid (MA) in submicron... ), -acyloxyalkyl hydroperoxides (AAHP-type compounds as -C(O)OC(OOH)-, i.e., ... Source: Martin, Scot T.- School of Engineering...

365

Retinyl Ester Storage Particles (Retinosomes) from the Retinal Pigmented Epithelium Resemble Lipid Droplets in Other  

E-Print Network [OSTI]

retinosomes are structures spe- cific to the eye or similar to lipid droplets in other organs functions such as nourishing and removing metabolic waste products, absorbing excess light, phagocytosis of photoreceptor fragments, and recycling the visual chro- mophore, 11-cis-retinal (2­6). Recycling of 11-cis

Palczewski, Krzysztof

366

Low Temperature Autoignition of C8H16O2 Ethyl and Methyl Esters in a  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001Long-Term Storage ofEnergyReactivity SI

367

ESTER, Enel integrated System for TEsts on stoRage (Smart Grid Project) |  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power Basics (The followingDirectLow CarbonOpen EnergyOpen Energy

368

acid t-butyl ester: Topics by E-print Network  

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

stable thermodynamically and hydration free energies obtained Yu, Fangqun 189 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

369

Mechanism-Based Triarylphosphine-Ester Probes for Capture of Endogenous RSNOs  

E-Print Network [OSTI]

Nitrosothiols (RSNOs) have been proposed as important intermediates in nitric oxide (NO[superscript •]) metabolism, storage, and transport as well as mediators in numerous NO-signaling pathways. RSNO levels are finely ...

Wishnok, John S.

370

Comparison of the use of sulfonate-derivatives of ethoxylated and/or propoxylated alkyl phenols in enhanced oil recovery  

SciTech Connect (OSTI)

Nonyl phenol has been ethoxylated and/or propoxylated: the results of the characterization of product non-ionic surfactants by NMR, hplc, and FAB-ms are described. These were then sulfonated and measurements of their phase equilibria: thermal and chemical stability: interfacial tension, viscosity, and contact angles, and rate and extent of adsorption were carried out as a function of temperature, salinity, and concentration, and in the presence and absence of co-surfactants and cosolvents to determine their EOR potential. Such properties are explained in terms of their molecular characteristics: these are related to de-oiling and surfactant flood results.

Lawrence, S.A.; Pilc, J.; Sermon, P.A.; Skidmore, P.G.; Hurd, B.G.; Broadhurst, P.V.

1988-05-01T23:59:59.000Z

371

Tadross, Virgil, and Stoltz Supporting Information Aryne Acyl-Alkylation in the General and Convergent Synthesis of Benzannulated  

E-Print Network [OSTI]

procedure.1 Commercially obtained reagents were used as received with the exception of acrolein, which Procedures O O 11 LDA, then acrolein THF, ­78 °C (74% yield) O O 12 HO -Hydroxyester 12. To a solution in THF (2 mL). After 20 minutes, acrolein (856 µL, 12.8 mmol) was added as a solution in THF (2.5 m

Stoltz, Brian M.

372

4006 J.Org. Chem. 1986,51, 4006-4016 Palladium-Catalyzed Fropargylic vs. Allylic Alkylation  

E-Print Network [OSTI]

)monofunctionalallylic and propargylic acetates with similar structural properties; (b) a bifunctional substrate containing both allyl with allylic acetates; (b)nonstabilized organometallicssuch as phenylzinc chloride,which react with propargylic of allylic and propargylic acetates were prepared and al- lowed to react with a representative set

Keinan, Ehud

373

Single event kinetic modeling of solid acid alkylation of isobutane with butenes over proton-exchanged Y-Zeolites  

E-Print Network [OSTI]

agents. Hydride shifts and methyl shifts are non-branching isomerization steps. These two slightly exothermic elementary steps proceed through the exchange of a hydride/methyl substituent and a positive charge between two adjacent carbon atoms...) mechanism is successful in explaining the experimental observation that n-butane does not isomerize to isobutane in the presence of strong liquid acids such as HF/SbF5 under conditions where n-pentane and n-hexane quickly isomerize to 2-methyl-butane and 2...

Martinis Coll, Jorge Maximiliano

2006-04-12T23:59:59.000Z

374

The seasonal evolution of NMHCs and light alkyl nitrates at middle to high northern latitudes during TOPSE  

E-Print Network [OSTI]

Meinardi,1 Oliver W. Wingenter,3 Elliot L. Atlas,4 Frank Flocke,4 Brian A. Ridley,4 and F. Sherwood Rowland with meteorological trajectory analysis, different trace gas signatures provided significant clues to the origins here provide a unique picture of NH trace gas evolution from winter to summer that will be invaluable

Wingenter, Oliver W.

375

Genomic phenotyping of the essential and non-essential yeast genome detects novel pathways for alkylation resistance  

E-Print Network [OSTI]

Background: A myriad of new chemicals has been introduced into our environment and exposure to these agents can damage cells and induce cytotoxicity through different mechanisms, including damaging DNA directly. Analysis ...

Svensson, J. Peter

376

Input to Flowsheet Simulation This appendix contains the input that was entered for alkylation model in the  

E-Print Network [OSTI]

-D C-607 Isobuatane Accumulator Pot C-614A Suction Trap C-614B Flash Drum C-615 Refrigerant Accumulator Isobutane chiller E-634-56 Refrigerant Partial Condenser E-640 Economizer Feed Cooler E-641-44 Depropanizer Charge Condenser E-695 Alky Deisobutanizer Reboiler E-696 Alky Deisobutanizer Side Reboiler E-6XX

Pike, Ralph W.

377

RECOVERY OF LACTIC ACID FROM AMERICAN CRYSTAL SUGAR COMPANY WASTEWATER  

SciTech Connect (OSTI)

This project has shown that the recovery of several valuable lactic acid products is both technically feasible and economically viable. One of the original objectives of this project was to recover lactic acid. However, the presence of a variety of indigenous bacteria in the wastewater stream and technical issues related to recovery and purification have resulted in the production of lactic acid esters. These esters could by hydrolyzed to lactic acid, but only with unacceptable product losses that would be economically prohibitive. The developed process is projected to produce approximately 200,000 lb per day of lactate esters from wastewater at a single factory at costs that compete with conventional solvents. The lactate esters are good solvents for polymers and resins and could replace acetone, methyl ethyl ketone, MIBK, and other polar solvents used in the polymer industry. Because of their low volatility and viscosity-lowering properties, they will be especially useful for inks for jet printers, alkyl resins, and high-solid paints. Owing to their efficiency in dissolving salts and flux as well as oils and sealants, lactate esters can be used in cleaning circuit boards and machine and engine parts. Unlike conventional solvents, lactate esters exhibit low toxicity, are biodegradable, and are not hazardous air pollutants. Another application for lactate esters is in the production of plasticizers. Severe health problems have been attributed to widely used phthalate ester plasticizers. The U.S. Department of Agriculture showed that replacement of these with inexpensive lactate esters is feasible, owing to their superior polymer compatibility properties. A very large market is projected for polymers prepared from lactic acid. These are called polylactides and are a type of polyester. Thermoplastics of this type have a variety of uses, including moldings, fibers, films, and packaging of both manufactured goods and food products. Polylactides form tough, orientable, self-supporting thin films and have, therefore, been used for adhesives, safety glass, and finishes. If the bacterial culture produces the L-lactic acid enanatiomer form exclusively, the L-lactide prepared from this form can be used for making polymers with good fiber-forming properties. We have not currently achieved the exclusive production of L-lactate in our efforts. However, markets in films and structural shapes are available for polymers and copolymers prepared from the mixed D,L-lactide forms that result from processing the D,L-lactic acid obtained from fermentation such as that occurring naturally in sugar beet wastewater. These materials are slowly biodegraded to harmless compounds in the environment, and they burn with a clean blue flame when incinerated. These materials represent excellent opportunities for utilization of the D,L-lactic mixture produced from natural fermentation of the ACS flume water. Esters can be converted into a lactide, and the alcohol released from the ester can be recycled with no net consumption of the alcohol. Lactide intermediates could be produced locally and shipped to polymer producers elsewhere. The polymer and copolymer markets are extremely large, and the role of lactides in these markets is continuously expanding. The overall process can be readily integrated into existing factory wastewater operations. There are several environmental benefits that would be realized at the factories with incorporation of the lactate recovery process. The process reduces the organic loading to the existing wastewater treatment system that should result in enhanced operability with respect to both solids handling and treated-water quality. A higher-quality treated water will also help reduce odor levels from holding ponds. Several water reuse opportunities are probable, depending on the quality of treated water from the FT process.

Daniel J. Stepan; Edwin S. Olson; Richard E. Shockey; Bradley G. Stevens; John R. Gallagher

2001-04-30T23:59:59.000Z

378

Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation broth  

DOE Patents [OSTI]

A modified water-immiscible solvent useful in the extraction of acetic acid from aqueous streams is a substantially pure mixture of isomers of highly branched di-alkyl amines. This solvent is substantially devoid of mono-alkyl amines and alcohols. Solvent mixtures formed of such a modified solvent with a desired cosolvent, preferably a low boiling hydrocarbon which forms an azeotrope with water are useful in the extraction of acetic acid from aqueous gaseous streams. An anaerobic microbial fermentation process for the production of acetic acid employs such solvents, under conditions which limit amide formation by the solvent and thus increase the efficiency of acetic acid recovery. Methods for the direct extraction of acetic acid and the extractive fermentation of acetic acid also employ the modified solvents and increase efficiency of acetic acid production. Such increases in efficiency are also obtained where the energy source for the microbial fermentation contains carbon dioxide and the method includes a carbon dioxide stripping step prior to extraction of acetic acid in solvent.

Gaddy, James L. (Fayetteville, AR); Clausen, Edgar C. (Fayetteville, AR); Ko, Ching-Whan (Fayetteville, AR); Wade, Leslie E. (Corpus Christi, TX); Wikstrom, Carl V. (Fayetteville, AR)

2002-01-01T23:59:59.000Z

379

Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation broth  

DOE Patents [OSTI]

A modified water-immiscible solvent useful in the extraction of acetic acid from aqueous streams is a substantially pure mixture of isomers of highly branched di-alkyl amines. This solvent is substantially devoid of mono-alkyl amines and alcohols. Solvent mixtures formed of such a modified solvent with a desired cosolvent, preferably a low boiling hydrocarbon which forms an azeotrope with water are useful in the extraction of acetic acid from aqueous gaseous streams. An anaerobic microbial fermentation process for the production of acetic acid employs such solvents, under conditions which limit amide formation by the solvent and thus increase the efficiency of acetic acid recovery. Methods for the direct extraction of acetic acid and the extractive fermentation of acetic acid also employ the modified solvents and increase efficiency of acetic acid production. Such increases in efficiency are also obtained where the energy source for the microbial fermentation contains carbon dioxide and the method includes a carbon dioxide stripping step prior to extraction of acetic acid in solvent.

Gaddy, James L.; Clausen, Edgar C.; Ko, Ching-Whan; Wade, Leslie E.; Wikstrom, Carl V.

2006-07-11T23:59:59.000Z

380

Combining CMPO and HEH[EHP] for Separating Trivalent Lanthanides from the Transuranic Elements  

SciTech Connect (OSTI)

Combining octyl(phenyl)-N,N-diisobutyl-carbamoylmethylphosphine oxide (CMPO) and 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (HEH[EHP]) into a single process solvent for separating transuranic elements from liquid high-level waste is explored. The lanthanides and americium can be co-extracted from HNO3 into 0.2 mol/L CMPO + 1.0 mol/L HEH[EHP] in n-dodecane. The extraction is relatively insensitive to the HNO3 concentration within 0.1 to 5 mol/L HNO3. Americium can be selectively stripped from the CMPO/HEH[EHP] solvent into a citrate-buffered N-(2-hydroxyethyl)ethylenediaminetriacetic acid solution . Separation factors >14 can be achieved in the range pH 2.5 to 3.7, and the separation factors are relatively insensitive to pH, a major advantage of this solvent formulation.

Braley, Jenifer C.; Lumetta, Gregg J.; Carter, Jennifer C.

2013-09-05T23:59:59.000Z

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


381

Emissive sensors and devices incorporating these sensors  

DOE Patents [OSTI]

The present invention generally relates to luminescent and/or optically absorbing compositions and/or precursors to those compositions, including solid films incorporating these compositions/precursors, exhibiting increased luminescent lifetimes, quantum yields, enhanced stabilities and/or amplified emissions. The present invention also relates to sensors and methods for sensing analytes through luminescent and/or optically absorbing properties of these compositions and/or precursors. Examples of analytes detectable by the invention include electrophiles, alkylating agents, thionyl halides, and phosphate ester groups including phosphoryl halides, cyanides and thioates such as those found in certain chemical warfare agents. The present invention additionally relates to devices and methods for amplifying emissions, such as those produced using the above-described compositions and/or precursors, by incorporating the composition and/or precursor within a polymer having an energy migration pathway. In some cases, the compositions and/or precursors thereof include a compound capable of undergoing a cyclization reaction.

Swager, Timothy M; Zhang, Shi-Wei

2013-02-05T23:59:59.000Z

382

Antimocrobial Polymer  

DOE Patents [OSTI]

A polymeric composition having antimicrobial properties and a process for rendering the surface of a substrate antimicrobial are disclosed. The composition comprises a crosslinked chemical combination of (i) a polymer having amino group-containing side chains along a backbone forming the polymer, (ii) an antimicrobial agent selected from quaternary ammonium compounds, gentian violet compounds, substituted or unsubstituted phenols, biguanide compounds, iodine compounds, and mixtures thereof, and (iii) a crosslinking agent containing functional groups capable of reacting with the amino groups. In one embodiment, the polymer is a polyamide formed from a maleic anhydride or maleic acid ester monomer and alkylamines thereby producing a polyamide having amino substituted alkyl chains on one side of the polyamide backbone; the crosslinking agent is a phosphine having the general formula (A)3P wherein A is hydroxyalkyl; and the antimicrobial agent is chlorhexidine, dimethylchlorophenol, cetyl pyridinium chloride, gentian violet, triclosan, thymol, iodine, and mixtures thereof.

McDonald, William F. (Utica, OH); Huang, Zhi-Heng (Walnut Creek, CA); Wright, Stacy C. (Columbus, GA)

2005-09-06T23:59:59.000Z

383

Biodiesel research progress 1992-1997  

SciTech Connect (OSTI)

The US Department of Energy (DOE) Office of Fuels Development began evaluating the potential of various alternative fuels, including biodiesel, as replacement fuels for traditional transportation fuels. Biodiesel is derived from a variety of biological materials from waste vegetable grease to soybean oil. This alkyl ester could be used as a replacement, blend, or additive to diesel fuel. This document is a comprehensive summary of relevant biodiesel and biodiesel-related research, development demonstration, and commercialization projects completed and/or started in the US between 1992 and 1997. It was designed for use as a reference tool to the evaluating biodiesel`s potential as a clean-burning alternative motor fuel. It encompasses, federally, academically, and privately funded projects. Research projects are presented under the following topical sections: Production; Fuel characteristics; Engine data; Regulatory and legislative activities; Commercialization activities; Economics and environment; and Outreach and education.

Tyson, K.S. [ed.

1998-04-01T23:59:59.000Z

384

Antimicrobial Polymer  

DOE Patents [OSTI]

A polymeric composition having antimicrobial properties and a process for rendering the surface of a substrate antimicrobial are disclosed. The polymeric composition comprises a crosslinked chemical combination of (i) a polymer having amino group-containing side chains along a backbone forming the polymer, (ii) an antimicrobial agent selected from metals, metal alloys, metal salts, metal complexes and mixtures thereof, and (iii) a crosslinking agent containing functional groups capable of reacting with the amino groups. In one example embodiment, the polymer is a polyamide formed from a maleic anhydride or maleic acid ester monomer and alkylamines thereby producing a polyamide having amino substituted alkyl chains on one side of the polyamide backbone; the crosslinking agent is a phosphine having the general formula (A).sub.3 P wherein A is hydroxyalkyl; and the metallic antimicrobial agent is selected from chelated silver ions, silver metal, chelated copper ions, copper metal, chelated zinc ions, zinc metal and mixtures thereof.

McDonald, William F. (Utica, OH); Wright, Stacy C. (Flint, MI); Taylor, Andrew C. (Ann Arbor, MI)

2004-09-28T23:59:59.000Z

385

Study of Performance Characteristics of Diesel Engine Fuelled with Diesel, Yellow Grease Biodiesel and its Blends  

E-Print Network [OSTI]

Abstract — The feedstock used in our experiment for the production of biodiesel was Yellow Grease. The whole experiment was divided into two parts: Production and Testing. Production involves Transesterification of free fatty acids in yellow grease to form yellow grease alkyl esters. The process of testing involved calculation of the physio – chemical properties, acid value, density, kinematics viscosity and various performance characteristics. The properties obtained were similar to the standards of biodiesel set by ASTM D6751. The conclusions derived from the experiments conducted were that the break thermal efficiency with biodiesel blends was little lower than that of diesel. The break specific energy consumption for B20, B40, B60, B80 and B100 is slightly higher than neat diesel. At all loads, diesel was found to have the lowet exhaust tempearture and the temperature for the different blends showed the upward trend with increasing concentration of biodiesel in the blends.

Virender Singh; Shubham Saxena; Shibayan Ghosh; Ankit Agrawal

386

Metal carbonyl-hydrosilane reactions and hydrosilation catalysis. Final report for period May 1, 1995 - August 14, 1999  

SciTech Connect (OSTI)

Manganese carbonyl complexes serve as hydrosilation precatalysts for selectively transforming a carbonyl group into a doxy methylene or a fully reduced methylene group. Substrates of interest include (1) aldehydes, ketones, carboxylic acids, silyl esters, and esters, and (2) their organometallic acyl counterparts. Two types of manganese precatalysts have been reported: (a) alkyl and acyl complexes (L)(CO){sub 4}MnR [L = CO, PPh{sub 3}; R = COCH{sub 3}, COPh, CH{sub 3}] and (b) halides (CO){sub 5}MnX and [(CO){sub 4}MnX]{sub 2} (X = Br, I). The former promote hydrosilation and deoxygenation catalysis; the latter promote dehydrogenative silation of alcohols and carboxylic acids as well as hydrosilation and deoxygenation of some metallocarboxylic acid derivatives. In every case studied, these Mn precatalysts are far more reactive or selective than traditional Rh(l) precatalysts. The reaction chemistry of the above and other Mn alkyl complexes with hydrosilanes was studied in order to probe catalysis mechanism(s). Thus, Mn(CO){sub 5} methyl, benzyl, acetyl, and benzoyl (4 p-substituents) complexes reacted with hydrosilines by four different mechanisms, which were established. A noteworthy development was that the methyl and benzoyl complexes gave moderate yields of a new ({eta}{sup 2}-Si-H) silane adduct (CO){sub 4}Mn(SiMe{sub 2}Ph)(H-SiMe{sub 2}Ph), which is stable in the presence of excess silane. This silane adduct promotes all three catalytic reactions; its extraordinary activity and potential selectivity are under study.

Cutler, Alan R.

2001-04-14T23:59:59.000Z

387

ALKALI – CATALYSED PRODUCTION OF BIODIESEL FUEL FROM NIGERIAN CITRUS SEEDS OIL  

E-Print Network [OSTI]

The potential of oil extracted from the seeds of three different Nigerian citrus fruits for biodiesel production was investigated. Fatty acid alkyl esters were produced from orange seed oil, grape seed oil and tangerine seed oil by transesterification of the oils with ethanol using potassium hydroxide as a catalyst. In the conversion of the citrus seed oils to alkyl esters (biodiesel), the grape seed oil gave the highest yield of 90.6%, while the tangerine seed oil and orange seed oil gave a yield of 83.1 % and 78.5%, respectively. Fuel properties of the seed oil and its biodiesel were determined. The results showed that orange seed oil had a density of 730 Kg/m 3, a viscosity of 36.5 mm 2 /s, and a pour point of- 14 o C; while its biodiesel fuel had a density of 892 Kg/m 3, a viscosity of 5.60 mm 2 /s, and a pour point of- 25 o C. Grape seed oil had a density of 675 Kg/m 3, a viscosity of 39.5 mm 2 /s, and a pour point of- 12 o C, while its biodiesel fuel had a density of 890 Kg/m 3, a viscosity of 4.80 mm 2 /s, and a pour point of- 22 o C. Tangerine seed oil had an acid value of 1.40 mg/g, a density of 568 Kg/m 3, a viscosity of 37.3 mm 2 /s, and a pour point of- 15 o C, while its biodiesel fuel had an acid value of 0.22 mg/g, a density of 895 Kg/m 3, a viscosity of 5.30 mm 2 /s, and a pour point of- 24 o C.

unknown authors

388

Mono-textured nanocrystalline thin films with pronounced stress-gradients: On the role of grain boundaries in the stress evolution  

SciTech Connect (OSTI)

The origins of residual stress gradients in nanocrystalline thin films, especially the role of grain size and texture gradients, are still not fully understood. In this work, the stress evolution in exemplary nanocrystalline TiN thin films with one and two fiber texture components as well as in homogeneous amorphous SiO{sub x} films is analyzed using wafer curvature as well as laboratory and synchrotron cross-sectional nanobeam X-ray diffraction techniques. The stress evolution across the film thickness is attributed to the evolutionary nature of microstructural development at the individual growth stages. While the effect of the smooth crystallographic texture changes during growth is only of minor importance, as this does not significantly affect the dominant stress formation mechanisms, the change in the grain size accompanied by a change of the volume fraction of grain boundaries plays a decisive role in the stress development across the film thickness. This is demonstrated on the monotextured thin films, where the residual stresses scale with the apparent grain size. These findings are validated also by the investigations of stress profiles in homogeneous amorphous SiO{sub x} films exhibiting no grain boundaries.

Daniel, R., E-mail: Rostislav.Daniel@unileoben.ac.at; Mitterer, C. [Department of Physical Metallurgy and Materials Testing, Montanuniversität Leoben, Franz-Josef-Strasse 18, 8700 Leoben (Austria); Jäger, E.; Sartory, B. [Materials Center Leoben Forschung GmbH, Leoben (Austria); Todt, J.; Keckes, J. [Department of Materials Physics, Montanuniversität Leoben and Erich Schmid Institute for Materials Science, Austrian Academy of Sciences, Leoben (Austria)

2014-05-28T23:59:59.000Z

389

Application of infrared birefringence imaging for measuring residual stress in multicrystalline, quasi-mono, dendritic web, and string ribbon silicon for solar cells  

E-Print Network [OSTI]

One of the parameters with highest impact on photovoltaic module cost is manufacturing yield during solar cell production. Yield is, to a great extent, directly affected by the crystallization technique used to grow the ...

Castellanos Rodríguez, Sergio

2014-01-01T23:59:59.000Z

390

Rheology Of MonoSodium Titanate (MST) And Modified Mst (mMST) Mixtures Relevant To The Salt Waste Processing Facility  

SciTech Connect (OSTI)

The Savannah River National Laboratory performed measurements of the rheology of suspensions and settled layers of treated material applicable to the Savannah River Site Salt Waste Processing Facility. Suspended solids mixtures included monosodium titanate (MST) or modified MST (mMST) at various solid concentrations and soluble ion concentrations with and without the inclusion of kaolin clay or simulated sludge. Layers of settled solids were MST/sludge or mMST/sludge mixtures, either with or without sorbed strontium, over a range of initial solids concentrations, soluble ion concentrations, and settling times.

Koopman, D. C.; Martino, C. J.; Shehee, T. C.; Poirier, M. R.

2013-07-31T23:59:59.000Z

391

A density functional theory study of magneto-electric Jones birefringence of noble gases, furan homologues, and mono-substituted benzenes  

SciTech Connect (OSTI)

We report on the results of a systematic ab initio study of the Jones birefringence of noble gases, of furan homologues, and of monosubstituted benzenes, in the gas phase, with the aim of analyzing the behavior and the trends within a list of systems of varying size and complexity, and of identifying candidates for a combined experimental/theoretical study of the effect. We resort here to analytic linear and nonlinear response functions in the framework of time-dependent density functional theory. A correlation is made between the observable (the Jones constant) and the atomic radius for noble gases, or the permanent electric dipole and a structure/chemical reactivity descriptor as the para Hammett constant for substituted benzenes.

Fahleson, Tobias; Norman, Patrick, E-mail: panor@ifm.liu.se [Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping (Sweden); Coriani, Sonia, E-mail: coriani@units.it [Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, I-34127 Trieste (Italy); Rizzo, Antonio, E-mail: rizzo@ipcf.cnr.it [CNR - Consiglio Nazionale delle Ricerche, Istituto per i Processi Chimico Fisici (IPCF-CNR), UOS di Pisa, I-56124 Pisa (Italy); Rikken, Geert L. J. A., E-mail: geert.rikken@lncmi.cnrs.fr [Laboratoire National des Champs Magnétiques Intenses, UPR3228, CNRS/INSA/UJF/UPS, Toulouse and Grenoble (France)

2013-11-21T23:59:59.000Z

392

Mechanisms of articular cartilage defect repair in vivo after implantation of stratified cartilaginous tissue  

E-Print Network [OSTI]

diacetate, succinimidyl ester (CFDA, SE) which passivelysuccinimidyl ester (CFDA, SE) [33] which passively diffusesdiacetate, succinimidyl ester (CFDA, SE)[43] which passively

Chawla, Kanika

2006-01-01T23:59:59.000Z

393

An investigation in the hygrothermal degradation of an E- glass/vinyl-ester composite in humid and immersion environments  

E-Print Network [OSTI]

Water transport in epoxy resins. ” Progress in PolymerWater transport in epoxy resins. ” Prog. Polym. Sci. Vol.Diffusion Studies in an Epoxy Resin System. ” J. of Polymer

Svetlik, Stephanie Laura

2008-01-01T23:59:59.000Z

394

OBSERVATIONS IN REACTIVITY BETWEEN BH CONTAINING COMPOUNDS AND ORGANOMETALLIC REAGENTS: SYNTHESIS OF BORONIC ACIDS, BORONIC ESTERS, AND MAGNESIUM HYDRIDES  

E-Print Network [OSTI]

interest not only for hydrogen storage purposes, but alsothe perspective of hydrogen storage, but also because theseapplications in hydrogen storage. 152,153,154 Aminoboranes (

Clary, Jacob William

2012-01-01T23:59:59.000Z

395

OBSERVATIONS IN REACTIVITY BETWEEN BH CONTAINING COMPOUNDS AND ORGANOMETALLIC REAGENTS: SYNTHESIS OF BORONIC ACIDS, BORONIC ESTERS, AND MAGNESIUM HYDRIDES  

E-Print Network [OSTI]

Herold, T. ; Schrott, U. ; Hoffmann, R. W. ; Schnelle, G. ;Chem. Ser. 1959, 23, 102-128. Hoffmann, R.W. ; Holzer, B. ;Commun. 2003, 2688-2689. Hoffmann, R. W. ; Zeiss, H. J.

Clary, Jacob William

2012-01-01T23:59:59.000Z

396

Optimization of extraction of high-ester pectin from passion fruit peel (Passiflora edulis flavicarpa) with citric acid by using  

E-Print Network [OSTI]

, Renata D.M.C. Amboni a,* a Departamento de Cie^ncias e Tecnologia de Alimentos, Centro de Cie^ncias Agra

Ferreira, Márcia M. C.

397

Nuclear magnetic resonance investigation of dynamics in poly(ethylene oxide)-based lithium polyether-ester-sulfonate ionomers  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

Nuclear magnetic resonance (NMR) spectroscopy has been utilized to investigate the dynamics of poly(ethylene oxide)-based lithium sulfonate ionomer samples that have low glass transition temperatures. 1H and 7Li spin-lattice relaxation times (T1) of the bulk polymer and lithium ions, respectively, were measured and analyzed in samples with a range of ion contents. The temperature dependence of T1 values along with the presence of minima in T1 as a function of temperature enabled correlation times and activation energies to be obtained for both the segmental motion of the polymer backbone and the hopping motion of lithium cations. Similar activation energies for motion of both the polymer and lithium ions in the samples with lower ion content indicate that the polymer segmental motion and lithium ion hopping motion are correlated in these samples, even though their respective correlation times differ significantly. A divergent trend is observed for correlation times and activation energies of the highest ion content sample with 100% lithium sulfonation due to the presence of ionic aggregation. Details of the polymer and cation dynamics on the nanosecond timescale are discussed and complement the findings of X-ray scattering and Quasi Elastic Neutron Scattering experiments.

Roach, David J. [Pennsylvania State University, University Park, PA (United States); Dou, Shichen [Pennsylvania State University, University Park, PA (United States); Colby, Ralph H. [Pennsylvania State University, University Park, PA (United States); Mueller, Karl T. [Pacific Northwest Lab., Richland, WA (United States)

2012-01-06T23:59:59.000Z

398

OBSERVATIONS IN REACTIVITY BETWEEN BH CONTAINING COMPOUNDS AND ORGANOMETALLIC REAGENTS: SYNTHESIS OF BORONIC ACIDS, BORONIC ESTERS, AND MAGNESIUM HYDRIDES  

E-Print Network [OSTI]

aryl bromides and H 2 BN(iPr) 2 Scheme 2.7. Hydroboration oftransfer hydride to BH 2 -N(iPr) 2 Scheme 2.10. Conversionchloride with BH 2 -N(iPr) 2 Scheme 3; Aqueous quench of p-

Clary, Jacob William

2012-01-01T23:59:59.000Z

399

In-cylinder pressure characteristics of a CI engine using blends of diesel fuel and methyl esters of beef tallow  

SciTech Connect (OSTI)

A Cummins N14-410 diesel engine was operated on 12 fuels produced by blending methyl tallowate, methyl soyate, and ethanol with no. 2 diesel fuel. Engine in-cylinder pressure data were used to evaluate engine performance. Peak cylinder pressures for each fuel blend at all engine speeds were lower than peak pressure for diesel fuel with the exception of the 80% diesel, 13% methyl tallowate, and 7% ethanol; and the 80% diesel, 6.5% methyl tallowate, 6.5% methyl soyate and 7% ethanol blends. The indicated mean effective pressure (IMEP) values for all fuel blends were less than for diesel fuel. The differences in IMEP values correlated with differences in power output of the engine. Similarly, maximum rates of pressure rise for most fuel blends were less than for diesel fuel. It was concluded that the fuel blends used in this study would have no detrimental long-term effects on engine performance, wear, and knock. 6 refs., 4 figs., 7 tabs.

Ali, Y.; Hanna, M.A.; Borg, J.E. [Univ. of Nebraska, Lincoln, NE (United States)

1996-05-01T23:59:59.000Z

400

Mechanism for the hydrolysis of organophosphates and investigations into the stereoselective hydrolysis of organophosphorus Esters by Phosphotriesterase.  

E-Print Network [OSTI]

. The rate constants and stereoselectivity ratios for a number of active site mutants have been determined. H254Y/L303T PTE reverses the stereoselective preference of phosphonate and phosphinate substrates. The PTE stereoselectivity of O-methyl, O...

Aubert, Sarah Dwyer

2006-04-12T23:59:59.000Z

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


401

An investigation in the hygrothermal degradation of an E- glass/vinyl-ester composite in humid and immersion environments  

E-Print Network [OSTI]

known to accelerate UV degradation of polymer materials [with increased UV exposure [13], the degradation of materialthe UV spectrum has been observed to result in degradation

Svetlik, Stephanie Laura

2008-01-01T23:59:59.000Z

402

Supporting Information for Stoltz et al. SI 1 Development of (Trimethylsilyl)Ethyl Ester Protected Enolates and  

E-Print Network [OSTI]

cm) obtained from Daicel Chemical Industries, Ltd. Analytical SFC was performed with a Mettler SFC-H, or OB-H) columns (4.6 mm x 25 cm) obtained from Daicel Chemical Industries, Ltd. Analytical chiral GC). TLC was performed using E. Merck silica gel 60 F254 precoated glass plates (0.25 mm) and visualized

Stoltz, Brian M.

403

A determination of the heats of combustion of the five-carbon fatty acids and their methyl and ethyl esters  

E-Print Network [OSTI]

; g7;P~. X% FATTI ACXDS ND TAX'. K~~~. Ah. ' RKg', Ei~K'~ P~ FuXVQJ~ ef %he 1&aydgewetie fea %he Twine of ~ of . "-elmer F~ F QQXly xy, ay~ Oe esther w9atew to thank Lh ~ C+ K ~ eeet W 9 H~ Vetoes ebs 45xoe~ @de esesaveh The ~ also ~ to thsnk N... of preparation had to be used? Tbongh sane diff ioalt and tins oonsnaing than sxxidationx the prsparatdon through the Orignard synthesis prosed quite satisfaotory? Isobntyl ~ prepared frcxa the aloohol was converted to isobutgrl nayvvxtuxs bread, de whioh...

Gilby, Ralph F

1952-01-01T23:59:59.000Z

404

Kinetic Model Development for the Combustion of Particulate Matter from Conventional and Soy Methyl Ester Diesel Fuels  

SciTech Connect (OSTI)

The primary objective of this research has been to investigate how the oxidation characteristics of diesel particulate matter (PM) are affected by blending soy-based biodiesel fuel with conventional ultra low sulfur diesel (ULSD) fuel. PM produced in a light duty engine from different biodiesel-conventional fuel blends was subjected to a range of physical and chemical measurements in order to better understand the mechanisms by which fuel-related changes to oxidation reactivity are brought about. These observations were then incorporated into a kinetic model to predict PM oxidation. Nanostructure of the fixed carbon was investigated by HR-TEM and showed that particulates from biodiesel had a more open structure than particulates generated from conventional diesel fuel, which was confirmed by BET surface area measurements. Surface area evolution with extent of oxidation reaction was measured for PM from ULSD and biodiesel. Biodiesel particulate has a significantly larger surface area for the first 40% of conversion, at which point the samples become quite similar. Oxidation characteristics of nascent PM and the fixed carbon portion were measured by temperature programmed oxidation (TPO) and it was noted that increased biodiesel blending lowered the light-off temperature as well as the temperature where the peak rate of oxidation occurred. A shift in the oxidation profiles of all fuels was seen when the mobile carbon fraction was removed, leaving only the fixed carbon, however the trend in temperature advantage of the biofuel blending remained. The mobile carbon fraction was measured by temperature programmed desorption found to generally increase with increasing biodiesel blend level. The relative change in the light-off temperatures for the nascent and fixed carbon samples was found to be related to the fraction of mobile carbon. Effective Arrhenius parameters for fixed carbon oxidation were directly measured with isothermal, differential oxidation experiments. Normalizing the reaction rate to the total carbon surface area available for reaction allowed for the definition of a single reaction rate with constant activation energy (112.5 {+-} 5.8 kJ/mol) for the oxidation of PM, independent of its fuel source. A kinetic model incorporating the surface area dependence of fixed carbon oxidation rate and the impact of the mobile carbon fraction was constructed and validated against experimental data.

Strzelec, Andrea [ORNL

2009-12-01T23:59:59.000Z

405

OBSERVATIONS IN REACTIVITY BETWEEN BH CONTAINING COMPOUNDS AND ORGANOMETALLIC REAGENTS: SYNTHESIS OF BORONIC ACIDS, BORONIC ESTERS, AND MAGNESIUM HYDRIDES  

E-Print Network [OSTI]

purification system (Pure Solv MD, Innovative Technologypurification system (Pure Solv MD, Innovative Technologypurification system (Pure Solv MD, Innovative Technology

Clary, Jacob William

2012-01-01T23:59:59.000Z

406

The development of a rod-coil redox polymer composed of biphenyl esters and poly (4-vinylpyridine)  

E-Print Network [OSTI]

such as dichloromethane. Cleavage of the protecting group is usually accomplished by acids or by a fluoride ion (Bu4N'F, KF or aqueous HF in CHsCN). Base Me)Sicl + ~ SM [Hct 0 R H I es 3. 2. 2. 1 Reagents. Ether, 4-hydroxy-4-biphenyl carboxylic acid, petroleum ether... CHs CH3 CHs I C ? OH + HO y y y y C ? 0 ? Si ? C ? CH CHs CHs 0 0 CHs CH3 CHs II I I C ? 0 y g y y C ? 0 ? SI ? C ? CH CHs CHs DiPC DPTS Figure 3-3. The chemical reaction of room temperature esterification. The coil, with the carboxylic...

DeCormier, Amy Urbanowicz

2012-06-07T23:59:59.000Z

407

Nuclear Magnetic Resonance Investigation of Dynamics in Poly(Ethylene Oxide) Based Lithium Polyether-ester-sulfonate Ionomers  

SciTech Connect (OSTI)

Nuclear magnetic resonance (NMR) spectroscopy has been utilized to investigate the dynamics of poly(ethylene oxide)-based lithium sulfonate ionomer samples that have low glass transition temperatures. 1H and 7Li spin-lattice relaxation times (T1) of the bulk polymer and lithium ions, respectively, were analyzed in samples with a range of ion contents. The temperature dependence of T1 values along with the presence of minima in T1 enabled correlation times and activation energies to be obtained for both the segmental motion of the polymer backbone and the hopping motion of lithium cations. Similar activation energies of both the polymer and lithium ions in the lower ion content samples indicate that the polymer segmental motion and lithium ion hopping motion are correlated even though their respective correlation times differ significantly. A divergent trend is observed for correlation times and activation energies of the highest ion content sample due to the presence of ionic aggregation. Details about the polymer and cation dynamics on the nanosecond timescale are discussed and complement the findings of X-ray scattering and Quasi Elastic Neutron Scattering experiments.

Roach, David J.; Dou, Shichen; Colby, Ralph H.; Mueller, Karl T.

2012-01-07T23:59:59.000Z

408

Determination of Total Lipids as Fatty Acid Methyl Esters (FAME) by in situ Transesterification: Laboratory Analytical Procedure (LAP)  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: Crystal structureComposite--FOR IMMEDIATE RELEASE April 13, 2000 NEWS

409

New immobilized antimicrobial polyethylenimines : synthesis and properties  

E-Print Network [OSTI]

Surfaces modified with immobilized N-alkyl-polyethylenimines (N-alkyl-PEls) containing various alkyl groups were synthesized and tested against various pathogenic human influenza viruses to establish structure-to-virucidal ...

Liu, Harris K. (Harris Ken-Ming)

2014-01-01T23:59:59.000Z

410

Theoretical Studies of Alkyl Radicals in the NaY and HY Zeolites Khashayar Ghandi,*, Federico E. Zahariev, and Yan Alexander Wang  

E-Print Network [OSTI]

. Zahariev, and Yan Alexander Wang Department of Chemistry, Mount Allison UniVersity, Barclay Building, 63C York Street, SackVille, NB, Canada E4L 1G8, and Department of Chemistry, UniVersity of British Columbia in hydrocarbon transfor- mations,1 the methanol-to-gasoline process,2 and polymer synthesis.3 The largest gap

Wang, Yan Alexander

411

Photochemical generation of alkyl radicals and their reactions with methyl viologen radical cation and with transition-metal complexes in aqueous solution  

SciTech Connect (OSTI)

The irradiation of aqueous solutions of RCo((14)aneN{sub 4})(H{sub 2}O){sup 2+} (R = CH{sub 3}, C{sub 2}H{sub 5}, 1-C{sub 3}H{sub 7}, CH{sub 2}Cl, CH{sub 2}Br, CH{sub 2}OCH{sub 3}) with visible light, {lambda} {le} 400 nm, results in the homolysis of the cobalt-carbon bond. These complexes are quite unreactive toward a variety of dealkylating and redox reagents and thus represent a convenient source of small unstabilized carbon-centered radicals in the presence of potential substrates. The radicals react rapidly with the methyl viologen radical cation, k{sub MB} = (1-2) {times} 10{sup 9} M{sup {minus}1} s{sup {minus}1}. The kinetics of the formation of RCr{sup 2+} and RCo((14)aneN{sub 4})(H{sub 2}O){sup 2+} in the reactions of radicals with Cr{sup 2+} and Co((14)aneN{sub 4})(H{sub 2}O){sub 2}{sup 2+}, respectively, were studied by using MV{sup +} as a probe. The respective rate constants have values k{sub Cr} = (1.9-2.4) {times} 10{sup 8} M{sup {minus}1} s{sup {minus}1} and k{sub Co} = (1-2) {times} 10{sup 7} M{sup {minus}1} s{sup {minus}1} for all the radicals examined. 36 refs., 2 figs., 1 tab.

Bakac, A.; Espenson, J.H. (Iowa State Univ., Ames (USA))

1989-10-04T23:59:59.000Z

412

.Research Module: Scheme 2. N-Benzylation of N-H Pyrazolidinones 3. 3 6. 60 Scheme 2 Procedure: N-Alkylation Using Aldehyde  

E-Print Network [OSTI]

folder. It will actually produce two NMR printouts for you. The first one will be dominated by methanol Scheme 1, add 10 mL of anhydrous methanol. · For 4-methoxy compoud 3c, add 20 mL of methanol, since the 4-Benzylation Synthesis of N-Benzyl Pyrazolidinones NH NH O R1 3a-e + H O 4 Methanol Solvent 0.05 CF3CO2H (catalyst) N N O

Jasperse, Craig P.

413

In Gel Slice Protease Digestion 1. Reduce and alkylate protein sample (see lab method). Run SDS-PAGE gel taking precautions against  

E-Print Network [OSTI]

volume of slices. 4. Add 1 ml of 0.05 M Tris-HCl, pH 9.0, 50% acetonitrile. Rotate gently for 1 hour at room temperature. Remove wash and save. · Prepare 100 mM Tris-HCl, pH 9.0. Dilute 1:1 with acetonitrile or microbore reverse phase column. 11. Cover slices with a minimal volume of 0.1% TFA/50% acetonitrile. Rotate

Aris, John P.

414

E-Print Network 3.0 - aryl bisdiazeniumdiolates potent Sample...  

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

of Hindered Alkyl-Aryl Ethers Thomas F. Woiwode... synthesis.2 Our retrosynthetic analysis of phomopsin A targeted the chiral tertiary alkyl-aryl ether... substitution (SNAr)...

415

Targeting unique nucleic acid structures with small molecules  

E-Print Network [OSTI]

of mono- and disubstitued anthraquinone derivatives with anat opposite ends of the anthraquinone scaffold are employed.

Tam, Victor Kin-man

2007-01-01T23:59:59.000Z

416

Method for producing microcomposite powders using a soap solution  

DOE Patents [OSTI]

A method for producing microcomposite powders for use in superconducting and non-superconducting applications. A particular method to produce microcomposite powders for use in superconducting applications includes the steps of: (a) preparing a solution including ammonium soap; (b) dissolving a preselected amount of a soluble metallic such as silver nitrate in the solution including ammonium soap to form a first solution; (c) adding a primary phase material such as a single phase YBC superconducting material in particle form to the first solution; (d) preparing a second solution formed from a mixture of a weak acid and an alkyl-mono-ether; (e) adding the second solution to the first solution to form a resultant mixture; (f) allowing the resultant mixture to set until the resultant mixture begins to cloud and thicken into a gel precipitating around individual particles of the primary phase material; (g) thereafter drying the resultant mixture to form a YBC superconducting material/silver nitrate precursor powder; and (h) calcining the YBC superconducting material/silver nitrate precursor powder to convert the silver nitrate to silver and thereby form a YBC/silver microcomposite powder wherein the silver is substantially uniformly dispersed in the matrix of the YBC material.

Maginnis, Michael A. (Coker, AL); Robinson, David A. (Mobile, AL)

1996-01-01T23:59:59.000Z

417

Journal of Inclusion Phenomena and Macrocyclic Chemistry 36: 267277, 2000. 2000 Kluwer Academic Publishers. Printed in the Netherlands.  

E-Print Network [OSTI]

Publishers. Printed in the Netherlands. 267 Diffusion Evidence for a Stepwise Association Between Alkyl p

Loh, Watson

418

An experimental and modeling study of the low and high temperature oxidation of cyclohexane  

E-Print Network [OSTI]

investigated than alkylated naphthenes in terms of combustion properties. Table 1 summarizes the experimental

Paris-Sud XI, Université de

419

Phase change compositions  

DOE Patents [OSTI]

Compositions containing crystalline, straight chain, alkyl hydrocarbons as phase change materials including cementitious compositions containing the alkyl hydrocarbons neat or in pellets or granules formed by incorporating the alkyl hydrocarbons in polymers or rubbers; and polymeric or elastomeric compositions containing alkyl hydrocarbons.

Salyer, Ival O. (Dayton, OH)

1989-01-01T23:59:59.000Z

420

Phase change compositions  

SciTech Connect (OSTI)

Compositions containing crystalline, long chain, alkyl hydrocarbons as phase change materials including cementitious compositions containing the alkyl hydrocarbons neat or in pellets or granules formed by incorporating the alkyl hydrocarbons in polymers or rubbers; and polymeric or elastomeric compositions containing alkyl hydrocarbons.

Salyer, Ival O. (Dayton, OH); Griffen, Charles W. (Mason, OH)

1986-01-01T23:59:59.000Z

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


421

Catalytic Upgrading of bio-oil using 1-octene and 1-butanol over sulfonic acid resin catalysts  

SciTech Connect (OSTI)

Raw bio-oil from fast pyrolysis of biomass must be refined before it can be used as a transporation fuel, a petroleum refinery feed or for many other fuel uses. Raw bio-oil was upgraded with the neat model olefin, 1-octene, and with 1-octene/1-butanol mixtures over sulfonic acid resin catalysts frin 80 to 150 degrees celisus in order to simultaneously lower water content and acidity and to increase hydrophobicity and heating value. Phase separation and coke formation were key factors limiting the reaction rate during upgrading with neat 1-octene although octanols were formed by 1-octene hydration along with small amounts of octyl acetates and ethers. GC-MS analysis confirmed that olefin hydration, carboxylic acid esterification, acetal formation from aldehydes and ketones and O- and C-alkylations of phenolic compounds occurred simultaneously during upgrading with 1-octene/1-butanol mixtures. Addition of 1-butanol increased olefin conversion dramatically be reducing mass transfer restraints and serving as a cosolvent or emulsifying agent. It also reacted with carboxylic acids and aldehydes/ketones to form esters, and acetals, respectively, while also serving to stabilize bio-oil during heating. 1-Butanol addition also protected the catalysts, increasing catalyst lifetime and reducing or eliminationg coking. Upgrading sharply increased ester content and decreased the amounts of levoglucosan, polyhydric alcohols and organic acids. Upgrading lowered acidity (pH value rise from 2.5 to >3.0), removed the uppleasant ordor and increased hydrocarbon solubility. Water content decreased from 37.2% to < 7.5% dramatically and calorific value increased from 12.6 MJ kg to about 30.0 MJ kg.

Zhang, Zhijun; Wang, Qingwen; Tripathi, Prabhat; Pittman, Charles U.

2011-02-04T23:59:59.000Z

422

Production of levulinic acid, furfural, and gamma valerolactone from C.sub.5 and C.sub.6 carbohydrates in mono- and biphasic systems using gamma-valerolactone as a solvent  

DOE Patents [OSTI]

A method to make levulinic acid (LA), furfural, or gamma-valerolactone (GVL). React cellulose (and/or other C.sub.6 carbohydrates) or xylose (and/or other C.sub.5 carbohydrates) or combinations thereof in a monophasic reaction medium comprising GVL and an acid; or (ii) a biphasic reaction system comprising an organic layer comprising GVL, and a substantially immiscible aqueous layer. At least a portion of the cellulose (and/or other C.sub.6 carbohydrates), if present, is converted to LA and at least a portion of the xylose (and/or other C.sub.5 carbohydrates), if present, is converted into furfural.

Dumesic, James A.; Alonso, David Martin; Gurbuz, Elif I.; Wettstein, Stephanie G.

2013-03-19T23:59:59.000Z

423

Productization and Manufacturing Scaling of High-Efficiency Solar Cell and Module Products Based on a Disruptive Low-Cost, Mono-Crystalline Technology: Final Technical Progress Report, April 1, 2009 - December 30, 2010  

SciTech Connect (OSTI)

Final report for PV incubator subcontract with Solexel, Inc. The purpose of this project was to develop Solexel's Unique IP, productize it, and transfer it to manufacturing. Silicon constitutes a significant fraction of the total solar cell cost, resulting in an industry-wide drive to lower silicon usage. Solexel's disruptive Solar cell structure got around these challenges and promised superior light trapping, efficiency and mechanical strength, despite being significantly thinner than commercially available cells. Solexel's successful participation in this incubator project became evident as the company is now moving into commercial production and position itself to be competitive for the next Technology Pathway Partnerships (TPP) funding opportunity.

Fatemi, H.

2012-07-01T23:59:59.000Z

424

I. Pt-Catalyzed Tandem Epoxide Fragmentation/Pentannulation of Propargylic Esters II. Progress Toward the Kopsia Family of Indole Alkaloids  

E-Print Network [OSTI]

Selected Spectra Chapter 3: An Ugi Four-Component Couplinglapidilectine B based on an Ugi four-component coupling isdescribed. The Ugi reaction incorporates all the carbon

Pujanauski, Brian Gerard

2010-01-01T23:59:59.000Z

425

Combining Ring-Opening Metathesis Polymerization and Cyclic Ester Ring-Opening Polymerization To Form ABA Triblock Copolymers from 1,5-Cyclooctadiene and D,L-Lactide  

SciTech Connect (OSTI)

ABA triblock copolymers were synthesized by combining ring-opening metathesis polymerization (ROMP) of 1,5-cyclooctadiene (COD) with ring-opening polymerization of D,L-lactide. Hydroxyl-functionalized telechelic polyCOD was prepared by taking advantage of chain transfer during ROMP of COD using the acyclic chain transfer agent cis-1,4-diacetoxy-2-butene. These hydroxy-terminated macroinitiators were used as initiators for the polymerization of lactide to form a series of triblock copolymers with compositions in the range 0.24 {le} f{sub PLA} {le} 0.89 and molecular weights ranging from 22 to 196 kg mol{sup -1}. The ordered-state morphologies of the triblocks were determined using small-angle X-ray scattering; well-ordered microstructures were observed for several samples, in accordance with the predicted dependence of morphology on composition. The mechanical properties of these materials were also investigated by performing tensile measurements; the triblocks were considerably tougher than poly(D,L-lactide), most markedly in samples with low polyCOD midblock content.

Pitet, Louis M.; Hillmyer, Marc A.; (UMM)

2009-07-31T23:59:59.000Z

426

In vitro regulation of porcine Leydig cell steroidogenesis by insulin-like growth factor I (IGF-I) and the phorbol ester 12-myristate-13- acetate (PMA)  

E-Print Network [OSTI]

LH-stimulated T, Pe and E production. Forskolin (100 uM) stimulated (P c . 05) T and Pe production and this effect was augmented by IGF-I (25 ng/ml). Co-treatment with IGF-I (25 ng/ml) also enhanced dibutyryl cyclic AMP f(Bu)2cAMP]-stimulated T and Pe... porcine Leydig cells were treated with medium alone (Control), PMA (. 000001 to 10 uM), pLH (10 ng/ml) or a combination of PMA and pLH. Addition of PMA alone, at the higher concentrations (, 001 to 10 uM), stimulated (P s F 05) both T and Pe production...

French, Joseph Thomas

2012-06-07T23:59:59.000Z

427

I. Pt-Catalyzed Tandem Epoxide Fragmentation/Pentannulation of Propargylic Esters II. Progress Toward the Kopsia Family of Indole Alkaloids  

E-Print Network [OSTI]

methyl t-butyl ether (MTBE), a much more environmentallyPhMe, reflux POCl 3 , Et 3 N CN MTBE Scheme 3.3: OptimizedO H NH POCl 3 , Et 3 N CN MTBE 1-Isocyanocyclohex-1-ene (

Pujanauski, Brian Gerard

2010-01-01T23:59:59.000Z

428

Ring effect on helical twisting power of optically active mesogenic esters derived from benzene, bicyclo[2.2.2]octane and p-carborane carboxylic  

E-Print Network [OSTI]

additive to generate a helical phase is defined as helical twisting power (HTP) or bM (yp21 factors that affect the value of HTP. The emerging picture suggests that the most effective dopants'' for induction of a helical structure, and that higher ``biaxiality'' leads to a higher HTP.11 Further

Kaszynski, Piotr

429

Radial-Basis-Function-Network-Based Prediction of Performance and Emission Characteristics in a Bio Diesel Engine Run on WCO Ester  

E-Print Network [OSTI]

Radial basis function neural networks (RBFNNs), which is a relatively new class of neural networks, have been investigated for their applicability for prediction of performance and emission characteristics of a diesel ...

Kumar, Shiva

2012-01-01T23:59:59.000Z

430

Down-regulation of four putative arabinoxylan feruloyl transferase genes from family PF02458 reduces ester-linked ferulate content in rice cell walls  

E-Print Network [OSTI]

cell wall in grasses. Keywords Biofuels Á Digestibility Áa broader adaptation of biofuels. One of the limitations foryield and composition for biofuels. Crop Sci 47:2211–2227

Piston, Fernando; Uauy, Cristobal; Fu, Lianhai; Langston, James; Labavitch, John; Dubcovsky, Jorge

2010-01-01T23:59:59.000Z

431

Solid State Nuclear Magnetic Resonance Investigation of Polymer Backbone Dynamics in Poly(Ethylene Oxide) Based Lithium and Sodium Polyether-ester-sulfonate Ionomers  

SciTech Connect (OSTI)

Polymer backbone dynamics of single ion conducting poly(ethylene oxide) (PEO)-based ionomer samples with low glass transition temperatures (Tg) have been investigated using solid-state nuclear magnetic resonance (NMR). Experiments detecting 13C with 1H decoupling under magic angle spinning (MAS) conditions identified the different components of the polymer backbone (PEO spacer and isophthalate groups) and their relative mobilities for a suite of lithium- and sodium-containing ionomer samples with varying cation contents. Variable temperature (203-373 K) 1H-13C cross-polarization MAS (CP-MAS) experiments also provided qualitative assessment of the differences in the motions of the polymer backbone components as a function of cation content and identity. Each of the main backbone components exhibit distinct motions, following the trends expected for motional characteristics based on earlier Quasi Elastic Neutron Scattering and 1H spin-lattice relaxation rate measurements. Previous 1H and 7Li spin-lattice relaxation measurements focused on both the polymer backbone and cation motion on the nanosecond timescale. The studies presented here assess the slower timescale motion of the polymer backbone allowing for a more comprehensive understanding of the polymer dynamics. The temperature dependences of 13C linewidths were used to both qualitatively and quantitatively examine the effects of cation content and identity on PEO spacer mobility. Variable contact time 1H-13C CP-MAS experiments were used to further assess the motions of the polymer backbone on the microsecond timescale. The motion of the PEO spacer, reported via the rate of magnetization transfer from 1H to 13C nuclei, becomes similar for T ? 1.1 Tg in all ionic samples, indicating that at similar elevated reduced temperatures the motions of the polymer backbones on the microsecond timescale become insensitive to ion interactions. These results present an improved picture, beyond those of previous findings, for the dependence of backbone dynamics on cation density (and here, cation identity as well) in these amorphous PEO-based ionomer systems.

Roach, David J. [Penn State Univ., State College, PA (United States). Dept. of Chemistry; Dou, Shichen [Penn State Univ., State College, PA (United States). Dept. of Materials Science and Engineering; Colby, Ralph H. [Penn State Univ., State College, PA (United States). Dept. of Materials Science and Engineering; Mueller, Karl T. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Penn State Univ., State College, PA (United States). Dept. of Chemistry

2013-05-21T23:59:59.000Z

432

Down-regulation of four putative arabinoxylan feruloyl transferase genes from family PF02458 reduces ester-linked ferulate content in rice cell walls  

E-Print Network [OSTI]

to ethanol is the inaccessibility of cellulose andto ethanol is the inaccessibility of the cellulose andthe cellulose ?bers, but add additional costs to the ethanol

Piston, Fernando; Uauy, Cristobal; Fu, Lianhai; Langston, James; Labavitch, John; Dubcovsky, Jorge

2010-01-01T23:59:59.000Z

433

Spectroscopic Approaches for Phosphorus Speciation in Soils and other Environmental Systems  

SciTech Connect (OSTI)

In the past decades, environmental scientists have become increasingly involved in developing novel approaches for applying emerging spectroscopic techniques to complex environmental matrices. The objective of this review is to convey the most common chemical species of phosphorus reported for soils, sediments, model systems, and waste materials based on analyses by four spectroscopic techniques: X-ray absorption near-edge structure, nuclear magnetic resonance, Fourier transform infrared spectroscopy, and Raman spectroscopy. Unique information is provided by each technique at a level of specificity that depends in part on matrix complexity. The X-ray absorption near-edge structure and nuclear magnetic resonance techniques reveal inorganic and organic P species in intact environmental matrices or in chemical extracts, whereas the Fourier transform infrared and Raman techniques can provide more specific bonding information about mineral or adsorbed P species in model analogs of matrix components. The most common P species in soils and sediments as indicated by spectroscopy are hydroxyapatite and octacalcium phosphate minerals, phosphate adsorbed on Fe- and Al-oxides, pyrophosphates and polyphosphates, phosphate mono- and di-esters, and phosphonates. Continued advancements in spectroscopic methods should improve speciation-based models of P mobilization and transformations in the environment.

F Kizewski; A Morris; Y Liu; D Hesterberg

2011-12-31T23:59:59.000Z

434

Oligomeric Dithienopyrrole-Thienopyrrolodione (DTP-TPD) Donor-Acceptor Copolymer for Organic Photovoltaics: Preprint  

SciTech Connect (OSTI)

A new donor-acceptor copolymer system based upon a dithienopyrrole (DTP) donor moiety and a thienopyrrolodione (TPD) accepting moiety has been designed and synthesized for organic photovoltaic (OPV) applications. The TPD accepting moiety has recently gained significant attention in the OPV community and is being incorporated into a number of different polymer systems. In contrast, the DTP donor moiety has received only limited attention, likely due in part to synthetic difficulties relating to the monomer. In our hands, the bis(trimethyltin)-DTP monomer was indelibly contaminated with ~5% of the mono-destannylated DTP, which limited the Stille polymerization with the dibromo-TPD monomer (>99% pure) to produce material with Mn ~ 4130 g/mol (PDI = 1.10), corresponding to around eight repeat units. Despite this limitation, UV-visible absorption spectroscopy demonstrates strong absorption for this material with a band gap of ~1.6 eV. Cyclic voltammetry indicates a highest occupied molecular orbital (HOMO) energy level of -5.3 eV, which is much lower than calculations predicted. Initial bulk heterojunction OPV devices fabricated with the fullerene acceptor phenyl C61 butyric acid methyl ester (PCBM) exhibit Voc ~ 700 mV, which supports the deep HOMO value obtained from CV. These results suggest the promise of this copolymer system.

Hammond, S. R.; Braunecker, W.; Garcia, A.; Larsen, R.; Owczarczyk, Z.; Olson, D.; Ginley, D.

2011-07-01T23:59:59.000Z

435

Emerging Scope for Biodiesel for Energy Security and Environmental Protection  

E-Print Network [OSTI]

Abstract---The global fuel crisis in the recent times has generated awareness amongst many countries of their vulnerability to oil embargoes and shortages. Considerable attention has been focused on the development of alternative fuel sources. The Motor vehicle population has also increased tremendously over the last decade in India. Environmental degradation is another outcome of growth in motor vehicle population. One of the strategies adopted to curb deteriorating environmental quality is the use of alternative fuels like Ethanol and biodiesel. Bio-Diesel is being looked upon as a renewable source of energy, which can partially substitute the diesel fuel. Special interest is being shown in view of the potential of this fuel to provide energy security and environment protection. Biodiesel, alkyl ester of fatty acids derived from vegetable oils, is emerging as a technically feasible, economically competitive and environmentally sustainable alternative to diesel. The base catalyzed continuous transesterification of vegetable oils having low viscosity, low free fatty acids and low saturated oil- glycerides is currently the preferred process for biodiesel production. India, continue to have shortage of petroleum products including diesel. We cannot divert our edible oils for biodiesel production due to their continued shortage and are consciously developing biodiesel based on nonedible oils. The efforts being made to have the prospect of providing India a leadership position in renewable energy. However, massive efforts and active multi-agency participation are required for techno- commercial success of biodiesel in India.

Sukhwinder Singh; Dr. S K Mahla

436

Process for producing biodiesel, lubricants, and fuel and lubricant additives in a critical fluid medium  

DOE Patents [OSTI]

A process for producing alkyl esters useful in biofuels and lubricants by transesterifying glyceride- or esterifying free fatty acid-containing substances in a single critical phase medium is disclosed. The critical phase medium provides increased reaction rates, decreases the loss of catalyst or catalyst activity and improves the overall yield of desired product. The process involves the steps of dissolving an input glyceride- or free fatty acid-containing substance with an alcohol or water into a critical fluid medium; reacting the glyceride- or free fatty acid-containing substance with the alcohol or water input over either a solid or liquid acidic or basic catalyst and sequentially separating the products from each other and from the critical fluid medium, which critical fluid medium can then be recycled back in the process. The process significantly reduces the cost of producing additives or alternatives to automotive fuels and lubricants utilizing inexpensive glyceride- or free fatty acid-containing substances, such as animal fats, vegetable oils, rendered fats, and restaurant grease.

Ginosar, Daniel M.; Fox, Robert V.

2005-05-03T23:59:59.000Z

437

E-Print Network 3.0 - acyl peptide hydrolase Sample Search Results  

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

acid ester hydrolase from Acetobacter turbidans Jolanda J. Polderman-Tijmes, Peter A. Jekel, Erik J. de... acid ester hydrolase from Acetobacter turbidans ATCC 9325 is capable of...

438

E-Print Network 3.0 - amide hydrolase produces Sample Search...  

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

acid ester hydrolase from Acetobacter turbidans Jolanda J. Polderman-Tijmes, Peter A. Jekel, Erik J. de... acid ester hydrolase from Acetobacter turbidans ATCC 9325 is capable of...

439

Transportation and its Infrastructure  

E-Print Network [OSTI]

fuels include ethanol, biodiesel and methanol, and syntheticEsterification Vegetable oil Biodiesel (esters) Bio oilsuch as ethanol, methanol, biodiesel, di-methyl esters (DME)

2007-01-01T23:59:59.000Z

440

JOURNAL DE PHYSIQUE Colloque C3, suppleinent rru no 4, Tonze 40, Avril 1979,yugr C3-396 HIGH PRESSURE STUDIES ON 4'-n-ALKYL-4-CYANOBIPHENYLS  

E-Print Network [OSTI]

hydraulic press which incorporates a piston-cylinder device and which has been recently fabricated in our with hydraulic pumps made by Whitney, USA. The constructional as well as the workingdetails of this press laboratory. A special feature of this press is that both the end load ram and master ram pressures and hence

Boyer, Edmond

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


441

Novel -Distonic Radical Cations [CnH2n+2S]+ (n ) 2, 3) Formed upon Decarbonylation of Ionized S-Alkyl Thioformates: A Mass Spectrometric and ab Initio Study  

E-Print Network [OSTI]

ions. Strong evidence for the distonic nature of the fragment ions derived from 2-7·+ has been obtained to intense peaks corresponding to H2S·+ and ionized olefins. Portions of the potential energy surface related explored in the gas phase by a variety of mass spectral methods.2,3 In particular, the -distonic isomer

Nguyen, Minh Tho

442

Energy Efficiency and Conservation Block Grant Program  

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

CA-TRIBE-COLD SPRINGS RANCHERIA OF MONO INDIANS OF CALIFORNIA Location: Tribe CA-TRIBE-COLD SPRINGS RANCHERIA OF MONO INDIANS OF CALIFORNIA CA American Recovery and Reinvestment...

443

Decontamination of water using nitrate selective ion exchange resin  

DOE Patents [OSTI]

A method for nitrate decontamination of water which involves passing the water through a bed of alkyl phosphonium anion exchange resin which has pendant alkyl groups of C[sub 3] or larger.

Lockridge, J.E.; Fritz, J.S.

1990-07-31T23:59:59.000Z

444

ECOLE POLYTECHNIQUE CNRS PRSENTE POUR OBTENIR LE TITRE DE  

E-Print Network [OSTI]

-Catalyzed Reductive Coupling of Alkyl Halides or Allylic Acetate/Carbonate.......................................................15 I Cobalt-catalyzed Reductive Allylation of Alkyl Halides with Allylic Acetates or Carbonates bromides............................................................30 I-2-3 Scope of allylic acetates

445

Nanoparticle Technology for Power Integration With Flexible Martin Peckerar1  

E-Print Network [OSTI]

of activated carbon and ruthenium (IV) oxide for super capacitors are reported. The mono-particulate layer

Rubloff, Gary W.

446

Effect of modifier Pd metal on hydrocracking of polyaromatic compounds over Ni-loaded Y-type zeolite and its application as hydrodesulfurization catalysts  

SciTech Connect (OSTI)

Coal tar obtained from coal carbonization is a treasure of polyaromatic hydrocarbons, where more than 400 kinds of aromatic compounds are found to be contained. The development of new catalysts being able to convert these aromatics into mono or diaromatic compounds is one of objectives for utilization of polyaromatics. Hydrocracking of polyaromatic compounds is believed to proceed via formation of terminal-naphthenic ring of starting aromatic compounds, followed by cleavage of the naphthenic ring to produce alkylated aromatic compounds which has less numbers of ring than starting aromatics. Accordingly, hydrogenation of aromatic rings and cracking of resulting naphthenic rings are key steps of hydrocracking reaction, so that dual functional catalysts such as metal-supported acid catalysts are considered to be one of the best catalysts. Zeolite has controlled pore structures and strong acidity enough to crack naphthenic rings, being characteristics in exchanging metal species with ease. We have been studying the hydrocracking of polyaromatic compounds over Ni-loaded zeolite catalysts (ZSM-5, mordenite, and Y-type) and found the fact that pore size of zeolite exerts an interesting effect on product distribution. We also conducted computer-simulation for diffusion phenomena of the polyaromatic hydrocarbons in the pore of these zeolites and found that diffusion ability of the substrate affects strongly the product distributions Recently we found that modifying of Ni-loaded Y-type zeolite by Pd-loading enhanced hydrocracking ability of the catalyst. In this report, we would like to refer to the results of both hydrocracking reaction of pyrene and hydrodesulfurization of dibenzothiophene using Pd-modified Ni-loaded Y-type zeolite.

Wada, Takema; Murata, Satoru; Nomura, Masakatsu [Osaka Univ. (Japan)

1995-12-31T23:59:59.000Z

447

PREPARATION AND CRYSTAL STRUCTURE OF THE 1,2-DIMETHOXYETHANE COMPLEX OF BIS [DI(TRIMETHYLSILYL)AMIDO]DICHLOROURANIUM(IV)  

E-Print Network [OSTI]

uranium, 1 have qiven rise to a series of alkyl and hydride derivatives that have a rich reaction chemistry.

McCullough, Laughlin G.

2013-01-01T23:59:59.000Z

448

Quinone tailored selective oxidation of methane over palladium catalyst with molecular oxygen as an oxidantw  

E-Print Network [OSTI]

quinones such as 2-alkyl anthraquinone, together with Pd catalyst, are used for industrial production of H2

Bao, Xinhe

449

Colloids and Surfaces A: Physicochem. Eng. Aspects 257258 (2005) 913 Monitoring molecular motion and structure near defect with STM  

E-Print Network [OSTI]

in two-dimensional (2D) systems with STM. They have observed the small domain of alkylated anthraquinone

Gong, Jian Ru

450

Hexabenzocoronene Model Compounds for Asphaltene Fractions: Synthesis & Characterization  

E-Print Network [OSTI]

are surrounded by alkyl and alkylthiol chains, while in the archipelago model2 aromatic and naphthenic moieties

Kilpatrick, Peter K.

451

Biol'hiniie (1998) 8(. 515-530 Socidt~ fran~;aisede i~iochimieei biolo,,le~,luoleculaire / Elsevicr. Paris  

E-Print Network [OSTI]

either a hydrocarbon or a fluorocarbon alkyl ckain have been synthesized. The pol~, head was ekl/el tris

452

Method of producing polyalkylated oligoalkylenepolyamines  

DOE Patents [OSTI]

A method of preparing polyalkylated oligoalkylenepolyamines is provided. The method includes contacting oligoalkylenepolyamine with a reagent composition comprising (a) alkyl bromide and/or alkyl chloride; (b) a basic agent; and (c) iodide salt. The alkylation reaction may be carried out in a polar, aprotic organic solvent.

Elangovan, Arumugasamy

2014-02-25T23:59:59.000Z

453

Oxidative dealkylation DNA repair mediated by the mononuclear non-heme iron AlkB proteins  

E-Print Network [OSTI]

to nonenzymatic alkylation (methylation) by environmental or chemical mutagens, resulting in adducts Abstract DNA can be damaged by various intracellular and environmental alkylating agents to produce to diseases such as cancer. Recently, it was discovered that some of the alkylation DNA base damage can

He, Chuan

454

Methods of making transportation fuel  

DOE Patents [OSTI]

A method for producing alkylated hydrocarbons is disclosed. Formation fluid is produced from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a first gas stream. The first gas stream includes olefins. The liquid stream is fractionated to produce at least a second gas stream including hydrocarbons having a carbon number of at least 3. The first gas stream and the second gas stream are introduced into an alkylation unit to produce alkylated hydrocarbons. At least a portion of the olefins in the first gas stream enhance alkylation. The alkylated hydrocarbons may be blended with one or more components to produce transportation fuel.

Roes, Augustinus Wilhelmus Maria (Houston, TX); Mo, Weijian (Sugar Land, TX); Muylle, Michel Serge Marie (Houston, TX); Mandema, Remco Hugo (Houston, TX); Nair, Vijay (Katy, TX)

2012-04-10T23:59:59.000Z

455

LHC constraints on gauge boson couplings to dark matter  

E-Print Network [OSTI]

Collider searches for energetic particles recoiling against missing transverse energy allow to place strong bounds on the interactions between dark matter (DM) and standard model particles. In this article we update and extend LHC constraints on effective dimension-7 operators involving DM and electroweak gauge bosons. A concise comparison of the sensitivity of the mono-photon, mono-W, mono-Z, mono-W/Z, invisible Higgs-boson decays in the vector boson fusion mode and the mono-jet channel is presented. Depending on the parameter choices, either the mono-photon or the mono-jet data provide the most stringent bounds at the moment. We furthermore explore the potential of improving the current 8 TeV limits at 14 TeV. Future strategies capable of disentangling the effects of the different effective operators involving electroweak gauge bosons are discussed as well.

Crivellin, Andreas; Hibbs, Anthony

2015-01-01T23:59:59.000Z

456

Actinide Lanthanide Separation Process – ALSEP  

SciTech Connect (OSTI)

Separation of the minor actinides (Am, Cm) from the lanthanides at an industrial scale remains a significant technical challenge for closing the nuclear fuel cycle. To increase the safety of used nuclear fuel (UNF) reprocessing, as well as reduce associated costs, a novel solvent extraction process has been developed. The process allows for partitioning minor actinides, lanthanides and fission products following uranium/plutonium/neptunium removal; minimizing the number of separation steps, flowsheets, chemical consumption, and waste. This new process, Actinide Lanthanide SEParation (ALSEP), uses an organic solvent consisting of a neutral diglycolamide extractant, either N,N,N',N'-tetra(2 ethylhexyl)diglycolamide (T2EHDGA) or N,N,N',N'-tetraoctyldiglycolamide (TODGA), and an acidic extractant 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (HEH[EHP]), dissolved in an aliphatic diluent (e.g. n-dodecane). The An/Ln co-extraction is conducted from moderate-to-strong nitric acid, while the selective stripping of the minor actinides from the lanthanides is carried out using a polyaminocarboxylic acid/citrate buffered solution at pH anywhere between 3 and 4.5. The extraction and separation of the actinides from the fission products is very effective in a wide range of HNO3 concentrations and the minimum separation factors for lanthanide/Am exceed 30 for Nd/Am, reaching > 60 for Eu/Am under some conditions. The experimental results presented here demonstrate the great potential for a combined system, consisting of a neutral extractant such as T2EHDGA or TODGA, and an acidic extractant such as HEH[EHP], for separating the minor actinides from the lanthanides.

Gelis, Artem V.; Lumetta, Gregg J.

2014-01-29T23:59:59.000Z

457

Screening Hofmann Compounds as CO{sub 2} Sorbents: Nontraditional Synthetic Route to Over 40 Different Pore-Functionalized and Flexible Pillared Cyanonickelates  

SciTech Connect (OSTI)

A simple reaction scheme based on the heterogeneous intercalation of pillaring ligands (HIPLs) provides a convenient method for systematically tuning pore size, pore functionality, and network flexibility in an extended series of pillared cyanonickelates (PICNICs), commonly referred to as Hofmann compounds. The versatility of the approach is demonstrated through the preparation of over 40 different PICNICs containing pillar ligands ranging from ?4 to ?15 Å in length and modified with a wide range of functional groups, including fluoro, aldehyde, alkylamine, alkyl, aryl, trifluoromethyl, ester, nitro, ether, and nonmetalated 4,4?-bipyrimidine. The HIPL method involves reaction of a suspension of preformed polymeric sheets of powdered anhydrous nickel cyanide with an appropriate pillar ligand in refluxing organic solvent, resulting in the conversion of the planar [Ni{sub 2}(CN){sub 4}]{sub n} networks into polycrystalline three-dimensional porous frameworks containing the organic pillar ligand. Preliminary investigations indicate that the HIPL reaction is also amenable to forming Co(L)Ni(CN){sub 4}, Fe(L)Ni(CN){sub 4}, and Fe(L)Pd(CN){sub 4} networks. The materials show variable adsorption behavior for CO{sub 2} depending on the pillar length and pillar functionalization. Several compounds show structurally flexible behavior during the adsorption and desorption of CO{sub 2}. Interestingly, the newly discovered flexible compounds include two flexible Fe(L)Ni(CN){sub 4} derivatives that are structurally related to previously reported porous spin-crossover compounds. The preparations of 20 pillar ligands based on ring-functionalized 4,4?-dipyridyls, 1,4-bis(4- pyridyl)benzenes, and N-(4-pyridyl)isonicotinamides are also described.

Culp, Jeffrey T.; Madden, Catherine; Kauffman, Kristi; Shi, Fan; Matranga, Christopher

2013-04-15T23:59:59.000Z

458

Pyrolysis of shale oil residual fractions  

SciTech Connect (OSTI)

The freezing point of JP-5, the Navy jet fuel, has been related to the n-alkane content, specifically n-hexadecane. In general, jet fuels from shale oil have the highest n-alkanes. The formation of n-alkanes in the jet fuel distillation range can be explained if large n-alkanes are present in the crude oil source. Quantities of large n-alkanes are insufficient, however, to explain the amounts found - up to 37% n-alkanes in the jet fuel range. Other possible precursors to small straight chain molecules are substituted cyclic compounds. Attack in the side chain obviously afford a path to an n-alkane. Aromatic hydrocarbons, esters, acids, amines, and ethers also have the potential to form n-alkanes if an unbranched alkyl chain is present in the molecule. Investigations showed that the best yield of the JP-5 cut comes at different times for the various fractions, but a time in the 60 to 120 min range would appear to be the optimum time for good yield at 450/sup 0/C. The longer time would be preferred with respect to lower potential n-alkane yield. None of the fractions gave n-alkane yields approaching the 37% amount found in the Shale-I JP-5. A temperature different than the 450/sup 0/C used here might affect the conversion percentage. Further the combined saturate, aromatic, and polar fractions may interact under pyrolysis conditions to give higher potential n-alkane yields than the fractions stressed independently.

Hazlett, R.N.; Beal, E.; Vetter, T.; Sonntag, R.; Moniz, W.

1980-01-01T23:59:59.000Z

459

Synthesis of the Tricyclic Core of Guanacastepene A, Decarboxylative Rearrangement of Allenylic N-Tosyl Carbamates and Phosphine-catalyzed Intramolecular ?-Umpolung Addition of ?-Aminoalkylallenic Esters, and the Enantioselective Total Synthesis of (+)-Ibophyllidine  

E-Print Network [OSTI]

Staphylococcus aureus (MRSA) and vancomycin-resistanton bacterial lawns against MRSA. The same Figure 2effective treatments against an MRSA infection (Figure 4).

Andrews, Ian Paul

2012-01-01T23:59:59.000Z

460

Synthesis of the Tricyclic Core of Guanacastepene A, Decarboxylative Rearrangement of Allenylic N-Tosyl Carbamates and Phosphine-catalyzed Intramolecular ?-Umpolung Addition of ?-Aminoalkylallenic Esters, and the Enantioselective Total Synthesis of (+)-Ibophyllidine  

E-Print Network [OSTI]

desethylibophyllidine, see: Kuehne, M. E. ; Matsko, T. H. ;Org. Chem. 1981, 46, 2002. Kuehne, M. E. ; Bohnert, J. C. J.30, 1959. Bornmann, W. G. ; Kuehne M. E. J. Org. Chem. 1992,

Andrews, Ian Paul

2012-01-01T23:59:59.000Z

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


461

Experimental Autoignition of C4-C6 Saturated and Unsaturated Methyl and Ethyl Esters H. Bennadji*, J. Biet, L. Coniglio-Jaubert, F. Billaud, P.A. Glaude, F. Battin-Leclerc  

E-Print Network [OSTI]

is an alternative fuel which can be used directly to a diesel engine without modifying the engine system. Basically lubricity and no sulfur content [2]. It can be stored just like mineral diesel and hence does not require separate infrastructure. The use of biodiesel in conventional diesel engines results in substantial

Boyer, Edmond

462

Synthesis and chemical modification of degradable polymers to enhance gene delivery  

E-Print Network [OSTI]

Poly([beta]-amino ester)s are a class of cationic, degradable polymers that have shown significant promise as gene delivery agents, more effective than the state-of-the-art, commercially available non-viral systems. The ...

Zugates, Gregory Thomas

2007-01-01T23:59:59.000Z

463

Anti-cancer agents based on N-acyl-2, 3-dihydro-1H-pyrrolo[2,3-b] quinoline derivatives and a method of making  

DOE Patents [OSTI]

The present disclosure relates to novel compounds that can be used as anti-cancer agents in the prostate cancer therapy. In particular, the invention relates to N-acyl derivatives of 2,3-dihydro-1H-pyrrolo[2,3-b]quinolines having the structural Formula (I), ##STR00001## stereoisomers, tautomers, racemics, prodrugs, metabolites thereof, or pharmaceutically acceptable salt and/or solvate thereof. The meaning of R1 is independently selected from H; C1-C6 Alkyl, cyclo-Alkyl or iso-Alkyl substituents; R2 is selected from C1-C6 Alkyl, cyclo-Alkyl or iso-Alkyl; substituted or non-substituted, fused or non-fused to substituted or non-substituted aromatic ring, aryl or heteroaryl groups. The invention also relates to methods for preparing said compounds, and to pharmaceutical compositions comprising said compounds.

Gakh, Andrei; Krasavin, Mikhail; Karapetian, Ruben; Rufanov, Konstantin A; Konstantinov, Igor; Godovykh, Elena; Soldatkina, Olga; Sosnov, Andrey V

2013-04-16T23:59:59.000Z

464

E-Print Network 3.0 - andres krumme veronika Sample Search Results  

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

and Andres Montoyo... , Veronika Laippala and Tapio Salakoski. . . . . . . . .137 Building the Syntactic Reference Corpus... Models Ester Boldrini, Alexandra Balahur,...

465

Characterization of Biodiesel Oxidation and Oxidation Products  

SciTech Connect (OSTI)

Features a literature review of 130 technical references pertaining to fatty oil and fatty ester stability chemistry in biodiesel fuels.

Not Available

2005-08-01T23:59:59.000Z

466

Tetrahedron Letters,Vo1.29,No.40,pp 5087-5090,1988 0040-4039/88 $3.00 + .oO Printed in Great Britain Pergamon Press plc  

E-Print Network [OSTI]

Britain Pergamon Press plc Bromine As An Oxidant for Direct Conversion of Aldehydes to Esters DR. Williams

Williams, David R.

467

Synthesis and the crystal and molecular structures of 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 Mono- and dibromohydrates (HL)Br . 3H{sub 2}O and (H{sub 2}L)Br{sub 2} . 3H{sub 2}O  

SciTech Connect (OSTI)

4-(Piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 monobromohydrate (HL)Br . 3H{sub 2}O (I) and 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 dibromohydrate (H{sub 2}L)Br{sub 2} . 3H{sub 2}O (II) are isolated in the crystalline state. The crystal structures of compounds I and II are determined using X-ray diffraction. It is established that the protonation of 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 proceeds primarily through the pyridine atom at pH 2-3. The attachment of the second proton occurs through the piperidine nitrogen atom at pH {approx} 1.

Kovalchukova, O. V., E-mail: okovalchukova@mail.ru [Peoples' Friendship University of Russia (Russian Federation); Stash, A. I.; Belsky, V. K. [Karpov Institute of Physical Chemistry (Russian Federation); Strashnova, S. B.; Zaitsev, B. E.; Ryabov, M. A. [Peoples' Friendship University of Russia (Russian Federation)

2009-01-15T23:59:59.000Z

468

Kinetics of Hydrolysis of Phenyl Acetates Catalyzed by the Zinc(II) Complex of 1,5,9-Triazacyclododecane. Evidence for Attack of Water or Hydroxide Ion at the  

E-Print Network [OSTI]

,5,9-Triazacyclododecane. Evidence for Attack of Water or Hydroxide Ion at the Coordinated Ester Junghun Suh,*, Sang Jun coordinated to the metal center makes a nucleophilic attack at the ester linkage. Instead, the results support a nucleophilic attack at the complexed ester. The kinetic data further indicate that the electrostatic

Paik Suh, Myunghyun

469

Future work: This section is one of the repeat units in the PET structure.  

E-Print Network [OSTI]

Future work: This section is one of the repeat units in the PET structure. Ester groupEster group--because of proprietary considerations--cannot be named here. The reason for this research PET is a form a plastic = many esters, or polyester. The letters in PET come from its formal name which is polyethylene

470

E-Print Network 3.0 - attenuates chronic cigarette Sample Search...  

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

Fever Muscle Aches Ears: Ache Itch Hearing loss Ringing Drainage Stuffiness Summary: : Cough Phlegm Short of breath Pain Have you ever had? Chronic illness Mono Asthma...

471

E-Print Network 3.0 - annealing model order Sample Search Results  

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

Science and Engineering, Northwestern University Collection: Materials Science 51 Film formation of PMMA and PBMA latex particle (mono)layers studied by AFM Summary: during...

472

E-Print Network 3.0 - anomaly imperial valley Sample Search Results  

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

Commission Collection: Energy Storage, Conversion and Utilization 66 Camp Pendleton Kings Canyon Summary: Valley National Park Fort Irwin Mojave National Preserve Mono County...

473

Sustainable Building in China - A Green Leap Forward?  

E-Print Network [OSTI]

a variety of different solar panel types, ranging from mono-the type and area for the different solar panels at the IBR.

Diamond, Richard C.

2014-01-01T23:59:59.000Z

474

E-Print Network 3.0 - amphiphilic acryl sucrose Sample Search...  

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

by amphiphilic... -phase isotropic solution that is 80 wt % liquid crystal. The monomer mixture was 85 wt % mono- functional acrylate Source: Srinivasarao, Mohan - School of...

475

E-Print Network 3.0 - adp ribose transferases Sample Search Results  

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

toxins. Whereas... mono(ADP-ribosyl)ases transfer a single ADP-ribose ... Source: Smith, Susan - Skirball Institute of Biomolecular Medicine, New York University Collection:...

476

E-Print Network 3.0 - acyl sugar production Sample Search Results  

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

and Medicine ; Environmental Sciences and Ecology 26 CHE 427627 INTERMEDIATE ORGANIC CHEMISTRY Summary: and reduction of sugars. Alkylation and acylation of carbohydrate hydroxyl...

477

The Department of Chemical Engineering and Materials Science Michigan State University  

E-Print Network [OSTI]

. PLA can be recycled or composted (biodegradable under composting conditions) to provide conditions were studied in details using 29 Si NMR. Conventional polymerization of these hydroxyl alkyl

478

E-Print Network 3.0 - allyl enol carbonates Sample Search Results  

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

Hill Collection: Chemistry 5 Stereocontrolled Alkylative Construction of Quaternary Carbon Centers David A. Kummer, William J. Chain, Marvin R. Morales, Olga Quiroga, and Andrew...

479

COAL LIQUEFACTION USING ZINC CHLORIDE CATALYST IN AN EXTRACTING SOLVENT MEDIUM  

E-Print Network [OSTI]

Alkylation of Pittsburgh Seam Coal, Fuel, Vol. 57, 697 Olah,The Wyodak coal was obtained from the Roland top seam of the

Gandhi, Shamim Ahmed

2013-01-01T23:59:59.000Z

480

E-Print Network 3.0 - aryl iodides convenient Sample Search Results  

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

including alkyl halides: an aryl iodide, an acetylene bromide, and a sulfenyl chloride. The derivatives of 1... bromide and an aryl iodide. Results Preparation of 1....

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


481

Barber, Whitesides I Redut'tiLleClearage of Carhon-Halogen Bonds ReductiveCleavageof Carbon-HalogenBondsby  

E-Print Network [OSTI]

halogenatom abstractionfrom thc alkyl halideby a nragnesiumatom (eq 2). c R -X * Ms, [R-X]-. sfcr + Me(l)- R

Prentiss, Mara

482

J. PHYS IV FRANCE 7 (1997) Colloque C2, SupplCmentau Journal de PhysiqueI11 d'avril 1997  

E-Print Network [OSTI]

occurs to give alkylated monomeric nickel species. For NiClz(PEtp)dAIEt3, low temperature Ni K-edge EDE

Paris-Sud XI, Université de

483

Separation of gases through gas enrichment membrane composites  

DOE Patents [OSTI]

Thin film composite membranes having as a permselective layer a film of a homopolymer of certain vinyl alkyl ethers are useful in the separation of various gases. Such homopolymers have a molecular weight of greater than 30,000 and the alkyl group of the vinyl alkyl monomer has from 4 to 20 carbon atoms with branching within the alkyl moiety at least at the carbon atom bonded to the ether oxygen or at the next adjacent carbon atom. These membranes show excellent hydrolytic stability, especially in the presence of acidic or basic gaseous components.

Swedo, R.J.; Kurek, P.R.

1988-07-19T23:59:59.000Z

484

E-Print Network 3.0 - actinide halide complexes Sample Search...  

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

It has been observed that complexes of lanthanide, actinide, and transition metal activate... that these actinide alkyl complexes undergo interesting C-H and C-N bond...

485

E-Print Network 3.0 - actinide complexation kinetics Sample Search...  

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

It has been observed that complexes of lanthanide, actinide, and transition metal activate... that these actinide alkyl complexes undergo interesting C-H and C-N bond...

486

E-Print Network 3.0 - axial ligand substitution Sample Search...  

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

for Summary: applications. Alkyl substitution on the pyridine ligands did not affect the sublimation temperature for 2... -4 and 8, nor did substitution of pyridine by...

487

Energy efficiency improvement and cost saving opportunities for petroleum refineries  

E-Print Network [OSTI]

Hydrocracking Hydrotreating Alkylation Polymerization/Dim.i.e. , crude distillation, hydrotreating, reforming, vacuumin an increase of hydrotreating capacity at the petroleum

Worrell, Ernst; Galitsky, Christina

2005-01-01T23:59:59.000Z

488

Research Article Received: 30 April 2012 Revised: 29 August 2012 Accepted: 4 September 2012 Published online in Wiley Online Library: 16 October 2012  

E-Print Network [OSTI]

degradation of mono-chloroacetic acid using titania-coated mercury electrodeless discharge lamps Hana Kmentov with titania in the form of thin films were used to generate UV/Vis radiation when placed in a microwave field, and the presence of inorganic anions) on the photocatalytic degradation of aqueous mono-chloroacetic acid (MCAA

Cirkva, Vladimir

489

Research Article Received: 2 March 2009 Revised: 20 April 2009 Accepted: 20 April 2009 Published online in Wiley Interscience: 28 May 2009  

E-Print Network [OSTI]

lamps: preparation, characterization and their effect on the photocatalytic degradation of mono discharge lamps (Hg-EDLs) were used to generate UV radiation when exposed to a microwave field. EDLs were, Cr, Mn, Zr, Ag). Photocatalytic degradation of mono-chloroacetic acid (MCAA) to HCl, CO2, and H2O

Cirkva, Vladimir

490

Open Archive TOULOUSE Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and  

E-Print Network [OSTI]

-epa.2010.0180 #12;Mono inverter Multi parallel PMSM - Structure and Control strategy Damien Bidarta , Maria a new and original Mono inverter Multi parallel Permanent Magnet Synchronous Motor (PMSM) system. Experimental results are given for a system with 2 PMSM plugged in parallel. The proposed solution can however

Paris-Sud XI, Université de

491

Theoretical studies of the dynamics of chemical reactions  

SciTech Connect (OSTI)

Recent research effort has focussed on several reactions pertinent to combustion. The formation of the formyl radical from atomic hydrogen and carbon monoxide, recombination of alkyl radicals and halo-alkyl radicals with halogen atoms, and the thermal dissociation of hydrogen cyanide and acetylene have been studied by modeling. In addition, the inelastic collisions of NCO with helium have been investigated.

Wagner, A.F. [Argonne National Laboratory, IL (United States)

1993-12-01T23:59:59.000Z

492

Effect of surfactant treated boehmite nanoparticles on properties of block  

E-Print Network [OSTI]

Effect of surfactant treated boehmite nanoparticles on properties of block copolymers R. Adhikari1 and treated with sulphonic acid based surfactants with different alkyl groups. As expected, the coupling and treated with sulphonic acid based surfactants with different alkyl groups. As matrixes, polystyrene

North Texas, University of

493

Atmos. Chem. Phys., 10, 961976, 2010 www.atmos-chem-phys.net/10/961/2010/  

E-Print Network [OSTI]

with an energy dispersive X-ray analyzer (CCSEM/EDX). As the aerosol plume evolves from the city center acids, alkyl groups, and oxygen bonded alkyl groups. At the city center (T0) the most prevalent aerosol type contained inorganic species (com- posed of sulfur, nitrogen, oxygen, and potassium) coated

Meskhidze, Nicholas

494

`THE JOURNAL OF Organic Chemistry VOLUME45, NUMBER14  

E-Print Network [OSTI]

-Dicarbonyl systems reacted with vinylmagnesium bromide and acetic anhydride to give a-acetoxy-a- vinylalkanones which combines a functiodifferen- tiated synthesis of a-diketones with allylic alkylation catalyzed in allylic alkylation catalyzed lby palladium(0) complexes6and the (1)(a)Trost, B. M.; Massiot, G. S. J. Am

Keinan, Ehud

495

Final Technical Report "Catalytic Hydrogenation of Carbon Monoxide and Olefin Oxidation" Grant number : DE-FG02-86ER13615  

SciTech Connect (OSTI)

Title: Catalytic Hydrogenation of Carbon Monoxide and Olefin Oxidation Grant No. DE-FG02-86ER13615 PI: Wayland, B. B. (wayland@sas.upenn.edu) Abstract Development of new mechanistic strategies and catalyst materials for activation of CO, H2, CH4, C2H4, O2, and related substrates relevant to the conversion of carbon monoxide, alkanes, and alkenes to organic oxygenates are central objectives encompassed by this program. Design and synthesis of metal complexes that manifest reactivity patterns associated with potential pathways for the hydrogenation of carbon monoxide through metallo-formyl (M-CHO), dimetal ketone (M-C(O)-M), and dimetal dionyl (M-C(O)-C(O)-M) species is one major focus. Hydrocarbon oxidation using molecular oxygen is a central goal for methane activation and functionalization as well as regioselective oxidation of olefins. Discovery of new reactivity patterns and control of selectivity are pursued through designing new metal complexes and adjusting reaction conditions. Variation of reaction media promotes distinct reaction pathways that control both reaction rates and selectivities. Dimetalloradical diporphyrin complexes preorganize transition states for substrate reactions that involve two metal centers and manifest large rate increases over mono-metalloradical reactions of hydrogen, methane, and other small molecule substrates. Another broad goal and recurring theme of this program is to contribute to the thermodynamic database for a wide scope of organo-metal transformations in a range of reaction media. One of the most complete descriptions of equilibrium thermodynamics for organometallic reactions in water and methanol is emerging from the study of rhodium porphyrin substrate reactions in aqueous and alcoholic media. Water soluble group nine metalloporphyrins manifest remarkably versatile substrate reactivity in aqueous and alcoholic media which includes producing rhodium formyl (Rh-CHO) and hydroxy methyl (Rh-CH2OH) species. Exploratory directions for this program include expending new strategies for anti-Markovnikov addition of water, alcohols, and amines with olefins, developing catalytic reactions of CO to give formamides and formic esters, and evaluating the potential for coupling reactions of CO to produce organic building blocks.

Wayland, B.B.

2009-08-31T23:59:59.000Z

496

Compositions for labeling .beta.-amyloid plaques and neurofibrillary tangles  

DOE Patents [OSTI]

Compositions useful for labeling .beta.-amyloid plaques and neurofibrillary tangles are provided. The compositions comprises compounds of formula (I): ##STR00001## wherein R.sub.1 is selected from the group consisting of --C(O)-alkyl, --C(O)-alkylenyl-R.sub.4, --C(O)O-alkyl, --C(O)O-alkylenyl-R.sub.4, --C.dbd.C(CN).sub.2-alkyl, --C.dbd.C(CN).sub.2-alkylenyl-R.sub.4, ##STR00002## wherein R.sub.4 is a radical selected from the group consisting of alkyl, substituted alkyl, aryl and substituted aryl; R.sub.5 is a radical selected from the group consisting of --NH.sub.2, --OH, --SH, --NH-alkyl, --NHR.sub.4, --NH-alkylenyl-R.sub.4, --O-alkyl, --O-alkylenyl-R.sub.4, --S-alkyl, and --S-alkylenyl-R.sub.4; R.sub.6 is a radical selected from the group consisting of --CN, --COOH, --C(O)O-alkyl, --C(O)O-alkylenyl-R.sub.4, --C(O)-alkyl, --C(O)-alkylenyl-R.sub.4, --C(O)-halogen, --C(O)NH-alkyl, --C(O)NH-alkylenyl-R.sub.4 and --C(O)NH.sub.2; R.sub.7 is a radical selected from the group consisting of O, NH, and S; and R.sub.8 is N, O or S; and R.sub.2 is selected from the group consisting of alkyl and alkylenyl-R.sub.10 and R.sub.3 is alkylenyl-R.sub.10, wherein R.sub.10 is selected from the group consisting of --OH, --OTs, halogen, spiperone, spiperone ketal, and spiperone-3-yl, or R.sub.2 and R.sub.3 together form a heterocyclic ring, optionally substituted with at least one radical selected from the group consisting of alkyl, alkoxy, OH, OTs, halogen, alkyl-R.sub.10, carbonyl, spiperone, spiperone ketal and spiperone-3-yl, and further wherein one or more of the hydrogen, halogen or carbon atoms are optionally replaced with a radiolabel.

Barrio, Jorge R. (Agoura Hills, CA); Petric, Andrej (Ljubljana, SI); Satyamurthy, Nagichettiar (Los Angeles, CA); Small, Gary W. (Los Angeles, CA); Cole, Gregory M. (Santa Monica, CA); Huang, Sung-Cheng (Sherman Oaks, CA)

2008-03-11T23:59:59.000Z

497

Functionalized polyfluorenes for use in optoelectronic devices  

DOE Patents [OSTI]

The present invention relates to process comprising reacting a polyfluorenes comprising at least one structural group of formula I ##STR00001## with an iridium (III) compound of formula II ##STR00002## wherein R.sup.1 and R.sup.2 are independently alkyl, substituted alkyl, aryl, substituted aryl or a combination thereof; R.sup.5is H or CHO; R.sup.3 and R.sup.4 are independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl or a combination thereof; R.sup.11 and R.sup.12 taken together form a substituted or unsubstituted monocyclic or bicyclic heteroaromatic ring; R.sup.13 is independently at each occurrence halo, nitro, hydroxy, amino, alkyl, aryl, arylalkyl, alkoxy, substituted alkoxy, substituted alkyl, substituted aryl, or substituted arylalkyl; Ar is aryl, heteroaryl, substituted aryl, substituted heteroaryl, or a combination thereof; X is selected from a direct bond, alky, substituted alkyl, and combinations thereof; Y is CHO or NH.sub.2; Z is CHO or NH.sub.2 where Z does not equal Y; and p is 0, 1 or 2. The invention also relates to the polyfluorenes, which are products of the reaction, and the use of the polyfluorenes in optoelectronic devices.

Chichak, Kelly Scott (Clifton Park, NY); Lewis, Larry Neil (Scotia, NY); Cella, James Anthony (Clifton Park, NY); Shiang, Joseph John (Niskayuna, NY)

2011-11-08T23:59:59.000Z

498

E-Print Network 3.0 - acid pre hydrolysis Sample Search Results  

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

at Madison Collection: Chemistry ; Biology and Medicine 9 Notes & Tips Mass spectrometric identification of pyroglutamic acid Summary: used for carboxylic acid ester- ification...

499

Emissions Benefits From Renewable Fuels and Other Alternatives for Heavy-Duty Vehicles  

E-Print Network [OSTI]

x emissions from biodiesel in newer engine technologies in afeedstock, biodiesel blend level, engine technology, andBiodiesel, Petrodiesel, Neat Methyl Esters, and Alkanes in a New Technology

Hajbabaei, Maryam

2013-01-01T23:59:59.000Z

500

E-Print Network 3.0 - alcohol ignition interlock devices Sample...  

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

properties of two C5 esters Summary: practical combustion devices, including diesel and homoge- neous charge compression ignition engines... An experimental...