Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Dyson, J. P."'
Autor:
Dyson, J. P.
This dissertation draws on fifteen months of ethnographic fieldwork to explore the working lives of children in a single village in an interior part of the Indian Himalayas, and with particular reference to children’s forest use practices: herding,
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598717
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
The interaction of a shock with a cloud has been extensively studied in the literature, where the effects of magnetic fields, radiative cooling and thermal conduction have been considered. However, the formation of fully developed turbulence has ofte
Externí odkaz:
http://arxiv.org/abs/0807.4402
We have examined a stream-source model for the production of the cometary tails observed in the Helix Nebula NGC 7293 in which a transonic or moderately supersonic stream of ionized gas overruns a source of ionized gas. Hydrodynamic calculations reve
Externí odkaz:
http://arxiv.org/abs/astro-ph/0607008
Publikováno v:
Mon.Not.Roy.Astron.Soc. 361 (2005) 1077-1090
Because of its key role in feedback in star formation and galaxy formation, we examine the nature of the interaction of a flow with discrete sources of mass injection. We show the results of two-dimensional numerical simulations in which we explore a
Externí odkaz:
http://arxiv.org/abs/astro-ph/0506342
Autor:
Pittard, J. M., Dobson, M. S., Durisen, R. H., Dyson, J. E., Hartquist, T. W., O'Brien, J. T.
We investigate the Mach number dependence of the radiative overstability of shocks. We find that the stability of radiative shocks increases with decreasing Mach number, with the result that M=2 shocks require cooling exponents < -1.2 to be overstabl
Externí odkaz:
http://arxiv.org/abs/astro-ph/0504640
Publikováno v:
Astron.Astrophys.408:79-94,2003
One aspect of supernova remnant evolution that is relatively unstudied is the influence of an AGN environment. A high density ambient medium and a nearby powerful continuum source will assist the cooling of shocked ejecta and swept-up gas. Motion of
Externí odkaz:
http://arxiv.org/abs/astro-ph/0309087
Autor:
Pittard, J. M., Arthur, S. J., Dyson, J. E., Falle, S. A. E. G., Hartquist, T. W., Knight, M. I., Pexton, M.
Publikováno v:
Astron.Astrophys.401:1027-1038,2003
We investigate the evolution of spherically symmetric supernova remnants in which mass loading takes place due to conductively driven evaporation of embedded clouds. Numerical simulations reveal significant differences between the evolution of conduc
Externí odkaz:
http://arxiv.org/abs/astro-ph/0303258
Autor:
Williams, R. J. R., Dyson, J. E.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 333 (2002) 1
We study the structure of shocks in clumpy media, using a multifluid formalism. As expected, shocks broaden as they weaken: for sufficiently weak shocks, no viscous subshock appears in the structure. This has significant implications for the survival
Externí odkaz:
http://arxiv.org/abs/astro-ph/0111380