National Bureau of Economic Research (NBER)
FROM OUR CORRESPONDENT, FROM OUR SALE ROOM CORRESPONDENT, FROM OUR OWN CORRESPONDENT, FROM OUR SCIENCE CORRESPONDENT, From Our Science Correspondent, FROM OUR LABOUR CORRESPONDENT, FROM OUR POLITICAL CORRESPONDENT, FROM OUR LABOUR REPORTER, FROM OUR SPECIAL CORRESPONDENT, From Our Own Correspondent, From Our Correspondent, FROM OUR MIDDLE EAST CORRESPONDENT, Yours faithfully, DENIS MAHON., K. SCOTT ADIE., L. J. BLOM-COOPER. Honorary, HINCHINGBROOKE., EDWARD PICKERING. Editor., Yours faithfully, PETER LAWRENCE., JEFFREY T. COLLINS. 23, Liverpool Road. St Albans. Hertfordshire., J. A. LEAVEY. House of Commons. Feb. 13., R. St. C. FEARON. Pear Tree Hall, Earls Colne, Essex., From Our Special Correspondent, A. S. COMYNS CARR., FROM A CORRESPONDENT, FROM A GARDENING CORRESPONDENT, FROM A MUSIC CRITIC, FROM OUR NORTHERN CORRESPONDENT, FROM OUR RACING CORRESPONDENT, From Our Rugby Football Correspondent, FROM OUR SKATING CORRESPONDENT, From Our Association Football Correspondent, By Our City Editor,
... Obituaries: Dr. F. W. Norwood A Great Preacher, Dme. Christabel Pankhurst Votes For Women, Mr. D. H. ...
1958 - Gale Group | TDA
... technical standards for the precision distance measuring equipment (DME/P). The DME/P is an integral element of the microwave ... In 1978 an ICAO meeting concluded that the DME/P should be integrated into the existing standards for the conventional DME (DME/N) as a compatible service. The motivation for ... airborne equipment to obtain service from the new DME/P ground facilities at least during the initial ... These compatibility requirements were later incorporated into the DME/P statement of operational requirements which was accepted ...
Tópico(s): Radio Wave Propagation Studies
1984 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Aerospace and Electronic Systems
National Bureau of Economic Research (NBER)
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... Items B. M. W. Authorised Dealers BMW Marnita DME Mfc Multiple Classified Advertising Items Broughton Garage Ltd ...
1989 - Gale Group | TDA
Robert J. Kelly, Danny R. Cusick,
Two main types of distance measuring equipment (DME)—that is,DME/N and DME/P—have been standardized by the International Civil Aviation Organization (ICAO). This chapter views both DME/N and the new DME/P from a broad systems engineering perspective. Like many other navigation aids, DME is characterized in terms of a signal format, ... assignment, the measurement technique used to extract the DME navigation parameter, and the output guidance information rate. A DME must also satisfy certain levels of signal integrity ...
Tópico(s): Target Tracking and Data Fusion in Sensor Networks
1986 - Elsevier BV | Advances in electronics and electron physics
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... Gallery Multiple Display Advertising Items Car Buyers' Guide DME Metropolitan House Multiple Classified Advertising Items Regional briefings ...
1989 - Gale Group | TDA
Herbert Schumann, Ilse Albrecht, Michael Gallagher, F. Ekkehardt Hahn, Christoph Janiak, C. Kolax, Jörg Loebel, S. Nickel, Eftimios Palamidis,
... alkali metal, L = donor solvent like Et2O, THF, DME). X-ray structural investigations showed that YbCl3 reacts with KC5Me5 in THF and DME with formation of [K(DME)3][K((C5Me5Yb)3Cl8K(DME)2)2]. Compounds of the type Cp2Ln(μ- ... analyses. Dicyclopentadienylsamarium chloride reacts with trimethylsilyl lithium in DME with formation of [Li(DME)3][(C5H5)2Sm(SiMe3)2], whereas in the reaction of (C5H5)2Sm(μ-Cl)2Na(DME) with LiGeMe3 redistribution occurs with formation of hexamethyldigermane and [Li(DME)3][(C5H5)3SmClSm(C5H5)3]. The ...
Tópico(s): Organometallic Complex Synthesis and Catalysis
1988 - Elsevier BV | Polyhedron
Andrew Robson, Lucy Alexander, Phil Yates, Kit Grace, Susan Selby, Robert Cole, Fred Redwood, Simon Barnes, Peter Lansley, James Harding, James Rossiter Property Correspondent, Mark Souster, Angus Macleod Scottish Political Editor, Richard Yarrow, Paul Mooney, Ivo Tennant, Sarah Urwin Jones, Michael Evans Defence Editor, Philip Howard, Carol Midgley, Christine Seib, David Chater, Ben Hoyle Arts Reporter, Joanna Bale, James Ducker, Jeremy Kingston, Clive Davis, Lorna Blackwood, Richard Hobson One-Day Cricket Correspondent, Carl Mortished, Will Pavia, Sam Marlowe, Andi Robertson, James Hider, Kevin Eason, Richard Ottaway, MP, Geoff Brown, Gerald Davies, Pat Gibson, Valerie Elliott, Siobhan Kennedy, Anthony Browne, Dominic Walsh, Tom Bawden, Nick Weldon, Dan Sabbagh Media Editor, Shirley English, Debra Craine, Gary Jacob, Andy Hine, John Webley, Tim Reid, Dan Sabbagh, Dalya Alberge Arts Correspondent, Colin Attenborough, Phoebe Greenwood, Richard Ford Home Correspondent, Alan Hamilton, Rhys Blakely, Valerie Elliott Consumer Editor, Richard Lloyd Parry, David Hands, Charles Bremner, Jonathan Richards, Adam Sherwin Media Correspondent, Matt Dickinson Chief Football Correspondent, Rev Canon Peter Macleod-Miller, David Charter, Tim Teeman, Hugo Rifkind, Steve Devereux, Derwent May, Dr Dewey Cornell, Russell Kempson, Mary Gold, Gerard Baker, Ross Clark, Sarah Vine, John Westerby, Patrick Hosking Banking and Finance Editor, James Harding Business Editor, Rick Broadbent, Tom Baldwin, James Rossiter, Jill Sherman Whitehall Editor, A. M. Jones, Christopher Martin-Jenkins, Pete Paphides, Ann Treneman, David Robertson Business Correspondent, Simon de Bruxelles, Rob Wright, Michael Badger, Bernard Lagan, Neil Harman Tennis Correspondent, David Powell Athletics Correspondent, Marcus Binney, Raymond Keene, Luke Leitch, Lucia Adams, Adam Sage, Christine Buckley, Matthew Pryor, Peter L. Jaeger, Matt Hughes, Nigel Hawkes, Jeremy Page, Neville Scott, Chris Campling, Bronwen Maddox, Shane Warne, Lindsey Bareham, Christopher Martin-Jenkins Chief Cricket Correspondent, Damian Whitworth, Mick Hume, Michael Stainer, Roger Boyes, Gabriel Rozenberg Economics Reporter, David Hands Rugby Correspondent, Tom Dart, Julian Muscat, Paul Simons, Lady Fretwell, Steve Jelbert, Nick Szczepanik, Mary Ann Sieghart, Philip Webster Political Editor, Steve Hawkes, Jane Shilling, Bill Miller, Thomas Catán, Ian Johns, Amanda Craig, Hugh Bankier, George Caulkin, Alan Franks, Russell Jenkins, Mike Driscoll, Michael Austin, Faith Glasgow, Hugh Trappes-Lomax, Richard Beeston, David Hutcheon, Ben Macintyre, Philip Webster, Lucia van der Post, Graham Searjeant, David Sinclair, Martin Waller, Lewis Smith Environment Reporter, Lisa Verrico, Carl Mortished International Business Editor, Mark Baldwin, Nigel Hawkes Health Editor, Sarah Butler, Benedict Nightingale, Angus Batey, Stuart Birch, Gervase Phillips, Judith Heywood Deputy Property Editor, Dr Thomas Stuttaford, Stephen Dalton, Tony Halpin, Michael Evans, Judith Heywood, Alan Lee Racing Correspondent, Alexandra Blair Education Correspondent, Naomi Cleaver, Olav Bjortomt, Andrew Riley, Miles Costello, S. R. Mills, Bryce Elder, Joe Bolger, Danny Cipriani, Christopher Irvine, Elizabeth Judge Telecoms Correspondent, Mary Hodgson, J. E. Queen, Jayne Dowle,
... new oil futures trading ICE reveals aim after DME delay UK exchange to confront Nymex The Sunday ...
2007 - Gale Group | TDA
... for general purposes by the use of liquefied DME (dimethyl ether) gas. Large amounts of energy are ... Therefore, we focus on the use of liquiefied DME, which is eco-friendly, as an extractant. The saturated pressure of DME is moderate—0.51 MPa at 20°C and 0.68 MPa at 30°C. Liquefied DME resolves high volume organic contaminants and water. Moreover, water can be easily separated from DME by flash distillation. This technology reduces the energy ... removed water and other oily materials by using DME. DME was completely recycled and none of it ...
Tópico(s): Atmospheric and Environmental Gas Dynamics
2009 - Japan Society Mechanical Engineers | Journal of Environment and Engineering
Directory of Open Access Books (DOAB)
Mehran Taban, Sumit Sharma, Dawn Williams, Nadia K. Waheed, Peter K. Kaiser,
... age-related macular degeneration (AMD), diabetic macular edema (DME), or branch/central retinal vein occlusion (RVO). Methods ... 95 eyes with exudative AMD, 41 eyes with DME, and 11 eyes with macular edema caused by ... in RLS (P<0.0001 for both). For DME and RVO, the total number of CRB at ... P = 0.042), versus 94% and 81% for DME and RVO, respectively (P = 0.07). Conclusions For ... with manual retinal thickness measurement than FMTM. In DME and RVO, however, both protocols provide similar and ... age-related macular degeneration (AMD), diabetic macular edema (DME), or branch/central retinal vein occlusion (RVO). Patients ...
Tópico(s): Retinal Diseases and Treatments
2009 - Elsevier BV | Ophthalmology
National Bureau of Economic Research (NBER)
Ilia Korobkov, Serge I. Gorelsky, Sandro Gambarotta,
... mu-[O(CH(2))(3)CH(2)])[Li(DME)]}[Li(DME)(3)] (5). In this species, the tetravalent metal ... moiety arising from THF ring opening. Reaction in DME afforded reductive cleavage of the solvent accompanied by ... to the tetravalent state. Reduction of 1 in DME with 2 equiv of potassium naphthalenide at room ... C(6)H(3)}UCl(OCH(3))][Li(DME)(3)] (6a) and [{1,3-[2,5-(i- ... 2)C(6)H(3)}UCl(2)][Li(DME)(3)] (6b) cocrystallized in a ratio very close ... methoxide group was generated from cleavage of the DME solvent. We also attempted the reduction of 1 ...
Tópico(s): Radioactive element chemistry and processing
2009 - American Chemical Society | Journal of the American Chemical Society
National Bureau of Economic Research (NBER)
Ying Wang, He li, Zhou Longbao, Wei Li,
... injection compression ignition combustion is studied in a DME engine. This combustion mode is referred to as ... paper are to examine the effect of different DME pilot quantities on combustion and emission characteristics in a single-cylinder direct-injection DME engine and to determine whether PCCI-DI is ... the combined combustion process analysis. Results show that DME engine can operate at a wide range of ... PCCI-DI mode. In comparison to the conventional DME CI combustion, the brake thermal efficiency slightly increases ...
Tópico(s): Catalytic Processes in Materials Science
2009 - Elsevier BV | Energy Conversion and Management
Alexander Street
Riccardo Bini, Cinzia Chiappe, Fabio Marchetti, Guido Pampaloni, Stefano Zacchini,
... diether ratio employed. The structures of [MF4(κ2-dme)2][MF6] [M = Nb (2a), Ta (2b); dme = MeOCH2CH2OMe] have been determined by X-ray diffraction. ... a heptacoordinated niobium cation within the species [NbCl4(dme)2][NbCl6]. This prediction has been confirmed by ... at −60 °C of the complexes [MCl4(κ2-dme)(κ1-dme)][MCl6] [M = Nb (4a), Ta (4b)], obtained by the addition of dme to MCl5 in CDCl3. Activation of the coordinated ... obtained selectively upon thermal reaction of MF5 with dme, diglyme, or 1,2-diethoxyethane, followed by treatment ...
Tópico(s): Carbon dioxide utilization in catalysis
2009 - American Chemical Society | Inorganic Chemistry
Alexander Street
Seokhwan Lee, Seungmook Oh, Young Choi,
... this study, a spark ignition engine operated with DME blended LPG fuel was experimentally investigated. In particular, ... combustion stability of an SI engine fuelled with DME blended LPG fuel were examined at 1800 and ... of engine loads up to 20% by mass DME fuel. Further, we demonstrated that, up to 10% DME, output engine power was comparable to that of ... the blended fuel since the energy content of DME is much lower than that of LPG. Furthermore, due to the high cetane number of DME fuel, knocking was significantly increased with DME. Considering ...
Tópico(s): Catalytic Processes in Materials Science
2009 - Elsevier BV | Fuel
Kazuyuki Oshita, Masaki Takaoka, Sin-ichiro Kitade, Nobuo Takeda, Hideki Kanda, Hisao Makino, Tadao Matsumoto, Shinsuke Morisawa,
... sediment by solvent extraction using liquefied dimethyl ether (DME) as the extractant. DME exists in a gaseous state at normal temperature ... substances and some amount of water; therefore, liquefied DME under moderate pressure (0.6–0.8 MPa) ... evaluated the PCB and water extraction characteristics of DME from contaminated sediment. We found that 99% of ... were simultaneously extracted from the sediment using liquefied DME at an extraction time of 4320 s and a liquefied DME/sediment ratio of 60 mL g−1. The ...
Tópico(s): Microbial bioremediation and biosurfactants
2009 - Elsevier BV | Chemosphere
Dongmei Feng, Yizan Zuo, Dezheng Wang, Jinfu Wang,
Steam reforming (SR) of dimethyl ether (DME) was investigated for the production of hydrogen forfuel cells. The activity of a series of solid acids for DME hydrolysis was investigated. The solid acid catalysts wereZSM- ... Z(50)>γ-Al2O3. Stronger acidity gave higher DME hydrolysis conversion. Physical mixtures containing a CuO-ZnO- ... ZrO2 catalyst and solid acid catalyst to couple DME hydrolysis and methanol SR wereused to examine the acidity effects on DME SR. DME SR activity strongly depended on the activity for ...
Tópico(s): Catalysis for Biomass Conversion
2009 - Elsevier BV | Chinese Journal of Chemical Engineering
Seung Hwan Bang, Chang Sik Lee,
... characteristics and macroscopic behaviors of the dimethyl ether (DME) blended methyl ester derived from soybean oil at ... nozzle flow passage were investigated under the various DME and its blended fuels. In comparison with the ... of blended fuels, the lower blending ratio of DME blended fuel with biodiesel showed a shorter injection ... the same energizing period and injection pressure, the DME fuel with a higher blending ratio showed a ... that of the lower blending ratio. The higher DME blended with biodiesel also showed a low peak ...
Tópico(s): Heat transfer and supercritical fluids
2009 - Elsevier BV | Fuel
Evamarie Hey‐Hawkins, Hans Georg̀ von Schnering,
... Mo(V) to Mo(IV). Work-up in DME yields MoCl 4 (DME)· 15-crown-5 (1). MoCl 4 (DME) (2) is prepared more conveniently from MoCl 5 /DME. 1 and 2 were characterized spectroscopically and by ...
Tópico(s): Metal complexes synthesis and properties
1991 - De Gruyter | Zeitschrift für Naturforschung B
K. Thiele, Helmar Görls, Wolfgang Imhof, W. Seidel,
... THF)2}2VMes(Biphen)2] (8) und [Li(DME)VMes2(Biphen)] (9). Durch Metathesereaktionen an [VCl3(THF) ... b), 2 (5 a), 3 (5)) und [Li(DME)2][V(OMes)4] (5 c) erhalten. 1, ... und 5 bilden mit LiMes die Gemischtligandkomplexe [{Li(DME)n}{VMes2(OAr)2}] (ArO = IPP (10), TBP ( ... OMes (12) (n = 2 oder 3) sowie [{Li(DME)2}{VMes(OMes)3}] (15). Durch Ligandenaustausch an 10 entsteht [Li(DME)2(THF)][VMes3(IPP)] (13). Addition von LiOMes ... 2}2VMes(Biphen)2] · THF (8) and [{Li(DME)}VMes2(Biphen)] (9) are formed. Reacting [VCl3(THF) ... b), 2 (5 a), 3 (5)) and [{Li(DME)2}V(OMes)4] (5 c), the latter ...
Tópico(s): Vanadium and Halogenation Chemistry
2002 - Wiley | Zeitschrift für anorganische und allgemeine Chemie
Carl Christoph Tzschucke, Christian Märkert, Heiko Glatz, Willi Bannwarth,
... catalysts. a) 0.001–1.5 mol % catalyst, DME, 2 M aq. Na2CO3, 80 °C. Further experiments ... X=Br, I. a) 0.1 mol % catalyst, DME, 2 M aq. Na2CO3, 80 °C, 15 h. ... catalyst. a) 0.002–2 mol % catalyst, CuI, DME, nBu2NH, 100 °C, 14 h. In summary, we ... the aryl halide (0.3 M in dimethoxyethane (DME), 1.0 mL, 0.3 mmol), the boronic acid (0.33 M in DME (with 4-methoxyphenylboronic acid methanol was used instead), ... with a pipette. The FRPSG was washed with DME (2×2 mL), water (2×2 mL), and DME (2×2 mL). The combined liquid phases were ...
Tópico(s): Chemical Synthesis and Analysis
2002 - Wiley | Angewandte Chemie International Edition
Sophie Le Caër, Michel Héninger, Pascal Pernot, Hélène Mestdagh,
... generated Fe(CO)n+ cations with dimethyl ether (DME) is investigated using a triple-cell Fourier Transform ... primary reaction is rapid substitution of CO by DME. One-step substitution of two CO ligands by one DME molecule also occurs for n = 3–4, and ... ions. Successive substitutions in the Fe(CO)4+/DME system lead mainly to Fe(CO)(DME)2+, in which the last CO remains unsubstituted. This ion is slowly converted to Fe(CO)(DME)3+ and Fe(DME)2+. The latter reaction implies formation of neutral ... promoted CO insertion reaction. Further reaction of Fe(DME)+ with DME involves the cleavage of a C– ...
Tópico(s): Catalysis and Oxidation Reactions
2002 - Royal Society of Chemistry | Physical Chemistry Chemical Physics