We improve the method proposed by Yao et al (2003) to resolve the X-ray dust scattering halos of point sources. Using this method we re-analyze the Cygnus X-1 data observed with Chandra (ObsID 1511) and derive the halo radial profile in different energy bands and the fractional halo intensity (FHI) as I(E) = 0.402×E keV. We also apply the method to the Cygnus X-3 data (Chandra ObsID 425) and de...

ABSTRACT The major satellites of Jupiter and Saturn are believed to have formed in circumplanetary discs (CPDs), which orbit forming giant protoplanets. Gas dust CPDs different distributions affect each other by drag, varies with grain size. Yet simulations multiple sizes separate dynamics not been done before. We seek assess how much size there is CPDs. run multifluid 3D hydrodynamical includi...

: In this paper, it is tried to explain the concept of representation and architectural representation through a qualitative methodology, approach its procedure for gradual creation in architecture and then according to scholars and to obtain the effect of this concept in the process of architectural facts the concepts are presented. In addition, it is referred to theories and practical texts b...

ABSTRACT We investigate the cosmological evolution of interstellar dust with a semi-analytical galaxy formation model (ν2GC), focusing on grain size distribution. The predicts statistical properties mass and distribution in galaxies across cosmic history. confirm that reproduces relation between dust-to-gas ratio metallicity local Universe, distributions Milky Way (MW)-like sample become simila...

As with most computer science problems, representation of the data is the key to ecient and eective solutions. Piecewise linear representation has been used for the representation of the data. This representation has been used by various researchers to support clustering, classication, indexing and association rule mining of time series data. A variety of algorithms have been proposed to obtain...

‎for a set of non-negative integers~$l$‎, ‎the $l$-intersection number of a graph is the smallest number~$l$ for which there is an assignment of subsets $a_v subseteq {1,dots‎, ‎l}$ to vertices $v$‎, ‎such that every two vertices $u,v$ are adjacent if and only if $|a_u cap a_v|in l$‎. ‎the bipartite $l$-intersection number is defined similarly when the conditions are considered only for the ver...

      The French law, contrary to the Iranian law, has given the mother a kind of representation for guardianship and training of the child. This is a development that was established in France in 1970, and in Article 6 of the Iranian Family Protection Act of 2012, the granting of representation to the mother over the legal procedure for demand of the child or the incompetent has been entrusted...