Zobrazeno 1 - 10
of 847
pro vyhledávání: '"Vaidya, D."'
Publikováno v:
Nature Environment and Pollution Technology, Vol 22, Iss 3, Pp 1555-1562 (2023)
In view of the environmental problems generated by the large-scale production of fly ash, increasing attention is now being paid to the recycling of fly ash as a good source of nutrients. To reduce the cost of fly ash disposal and best utilization, i
Externí odkaz:
https://doaj.org/article/584cfb372ace450ca604ddda851ab023
The Mid-IR colors ($F_{8}/F_{24}$) of galaxies together with their IR-UV luminosity correlations can be used to get some insight into the relative abundance of the different dust grain populations present in them. The ELAIS-N1 field contains thousand
Externí odkaz:
http://arxiv.org/abs/1505.06604
We study the extinction properties of the composite dust grains, consisting of host silicate spheroids and graphite as inclusions, using discrete dipole approximation (DDA). We calculate the extinction cross sections of the composite grains in the ul
Externí odkaz:
http://arxiv.org/abs/1310.0714
Publikováno v:
Earth Planets Space, Vol. 63 (No. 10), pp. 1041-1045, 2011
A composite dust grain model which simultaneously explains the observed interstellar extinction, polarization, IR emission and the abundance constraints, is required. We present a composite grain model, which is made up of a host silicate oblate sphe
Externí odkaz:
http://arxiv.org/abs/1106.4322
Autor:
Vaidya, D. B., Gupta, Ranjan
In this paper we study the effects of inclusions and porosities on the emission properties of silicate grains and compare the model curves with the observed infrared emission from circumstellar dust. We calculate the absorption efficiency of the comp
Externí odkaz:
http://arxiv.org/abs/1101.1782
Publikováno v:
Mon.Not.Roy.Astron.Soc.379:791-800,2007
The composite grain is made up of a host silicate spheroid and graphite inclusions. The extinction efficiencies of the composite spheroidal grains for three axial ratios are computed using the discrete dipole approximation (DDA). The interstellar ext
Externí odkaz:
http://arxiv.org/abs/0705.1580
Publikováno v:
Astron.Astrophys.441:555,2005
Observations of interstellar extinction and polarization indicate that the interstellar medium consists of aligned non-spherical dust grains which show variation in the interstellar extinction curve for wavelengths ranging from NIR to UV. To model th
Externí odkaz:
http://arxiv.org/abs/astro-ph/0506524
Publikováno v:
Astrophys.Space Sci. 301 (2006) 21-31
Composition of Comet dust obtained by the dust impact analyser on the Halley probes indicated that the comet dust is a mixure of silicate and carbonaceous material. The collected interplanetary dust particles (IDP's) are fluffy and composite having g
Externí odkaz:
http://arxiv.org/abs/astro-ph/0504266
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Akademický článek
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