Search Results - (Author, Cooperation:D. Engels)

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  1. 1
    S. Buitink ; A. Corstanje ; H. Falcke ; J. R. Horandel ; T. Huege ; A. Nelles ; J. P. Rachen ; L. Rossetto ; P. Schellart ; O. Scholten ; S. ter Veen ; S. Thoudam ; T. N. Trinh ; J. Anderson ; A. Asgekar ; I. M. Avruch ; M. E. Bell ; M. J. Bentum ; G. Bernardi ; P. Best ; A. Bonafede ; F. Breitling ; J. W. Broderick ; W. N. Brouw ; M. Bruggen ; H. R. Butcher ; D. Carbone ; B. Ciardi ; J. E. Conway ; F. de Gasperin ; E. de Geus ; A. Deller ; R. J. Dettmar ; G. van Diepen ; S. Duscha ; J. Eisloffel ; D. Engels ; J. E. Enriquez ; R. A. Fallows ; R. Fender ; C. Ferrari ; W. Frieswijk ; M. A. Garrett ; J. M. Griessmeier ; A. W. Gunst ; M. P. van Haarlem ; T. E. Hassall ; G. Heald ; J. W. Hessels ; M. Hoeft ; A. Horneffer ; M. Iacobelli ; H. Intema ; E. Juette ; A. Karastergiou ; V. I. Kondratiev ; M. Kramer ; M. Kuniyoshi ; G. Kuper ; J. van Leeuwen ; G. M. Loose ; P. Maat ; G. Mann ; S. Markoff ; R. McFadden ; D. McKay-Bukowski ; J. P. McKean ; M. Mevius ; D. D. Mulcahy ; H. Munk ; M. J. Norden ; E. Orru ; H. Paas ; M. Pandey-Pommier ; V. N. Pandey ; M. Pietka ; R. Pizzo ; A. G. Polatidis ; W. Reich ; H. J. Rottgering ; A. M. Scaife ; D. J. Schwarz ; M. Serylak ; J. Sluman ; O. Smirnov ; B. W. Stappers ; M. Steinmetz ; A. Stewart ; J. Swinbank ; M. Tagger ; Y. Tang ; C. Tasse ; M. C. Toribio ; R. Vermeulen ; C. Vocks ; C. Vogt ; R. J. van Weeren ; R. A. Wijers ; S. J. Wijnholds ; M. W. Wise ; O. Wucknitz ; S. Yatawatta ; P. Zarka ; J. A. Zensus
    Nature Publishing Group (NPG)
    Published 2016
    Staff View
    Publication Date:
    2016-03-05
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Engels, D.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0277-5395
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Sociology
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0277-5395(89)90038-1

    Articles: DFG German National Licenses
  3. 3
    Engels, D. ; Ndoricimpa, J. ; Nahimana, S. ; Gryseels, B.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0001-706X
    Keywords:
    Burundi ; Intestinal helminthiasis ; Schistosoma mansoni ; Schistosomiasis control ; School programme ; Urban control
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0001-706X(94)90052-3

    Articles: DFG German National Licenses
  4. 4
    Staff View
    ISSN:
    1573-0794
    Keywords:
    Comet Hale-Bopp ; dust tail ; striae ; particle fragmentation ; particle lifetime ; emission source
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Geosciences
    Physics
    Notes:
    Abstract The Sekanina-Farrell particle fragmentation model for the striated tails of dust comets is successfully applied to two images of comet Hale-Bopp to study the motions of 12 striae in a time span of March 12–15, 1997. There is evidence for recurring outbursts with a periodicity of 11h21m, consistent with results based on analysis of dust jets. The ejecta in all the striae appear to have been released from one source on the nucleus between the end of January and the second half of February 1997, some 60 to 40 days before perihelion. The parent particles were subjected to a radiation pressure acceleration of βp ≃ 0.55 and their fragmentation lifetimes in 11 of the 12 striae were practically constant and equal to 13–15 days, when normalized to 1 AU from the Sun. Brief analysis of Watanabe et al.'s measurements of striae on their images from March 5–9, 1997 shows even shorter fragmentation lifetimes for the parent particles, mostly about 7–11 days at1 AU.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1023/A:1006242209416

    Articles: DFG German National Licenses
  5. 5
    Lewis, B. M. ; Engels, D.

    [s.l.] : Nature Publishing Group
    Published 1988
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] Supergiant stars and stars on the asymptotic giant branch lose mass at rates ranging from 10~7 to more than 10~4 M0 yr"1. This material cools as it moves away from the star, allowing both dust grains and molecules to form. As the dust-shell thickens, more of the stellar luminosity is absorbed and ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/332049a0

    Articles: DFG German National Licenses
  6. 6
    Reimers, D. ; Vogel, S. ; Hagen, H.-J. ; Engels, D. ; Groote, D. ; Wamsteker, W. ; Clavel, J. ; Rosa, M. R.

    [s.l.] : Nature Publishing Group
    Published 1992
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] The bright (V = 16.1) quasar HS1700 + 6416 is an ideal candi-date for a study of absorption line systems with the Hubble Space Telescope (HST) because of its remarkably unattenuated continuum as seen by the International Ultraviolet Explorer (IUE) at low signal-to-noise ratio1. Spectra were ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/360561a0

    Articles: DFG German National Licenses