Scanning backscattering imaging and independent component analysis (ICA) are used to probe targets hidden in the subsurface of a turbid medium. A new correction procedure is proposed and used to synthesize a "clean" image of a homogeneous host medium numerically from a set of raster-scanned "dirty" backscattering images of the medium with embedded targets. The independent intensity distribution...

this paper measures event risk which is introducing by the ball committee to measure the effect of sudden news. this study calculates event risk by using the data of registered firms in tehran stock market between 1993 and 1994. for computing event risk, we use daily market capitalization for 80 firms during 1993-2009, then dividing these firms to three baskets; big, medium and small. the model...

Replication of the 50 and 58 moles per cent guanine plus cytosine (%GC) components of R factor 222 in Proteus mirabilis during growth in the presence and absence of chloramphenicol and after shifting exponential- and stationary-phase cells to conditions which inhibit host protein or deoxyribonucleic acid (DNA) synthesis was examined. Chloramphenicol reduced the growth rate but increased the amo...

in vitro propagation of az x m9 new apple rootstock resulted of breeding program of vegetative apple rootstock in iran was investigated. nodal explants were inoculated in murashige and skoog (ms) medium supplemented with various concentrations of 6-benzylaminon purine (bap) (0.4, 0.8 and 1.2 mg/l) alone or with naphthalene acetic acid (naa) (0.1 mg/l). we examined the effect of different concen...