This paper proposes a Zigzag transform that starts at random positions and crosses bidirectionally (ZZBCRP) to scramble the image.The number of sequence types of this new Zigzag transform is the number of pixels in the plaintext image, which is more and more complicated than other Zigzag transform Bowl (Set of 3) methods, and Arrangement in a bidir
The efficient syntheses of 5-(2-hydroxyethyl)- and 5-(3-hydroxypropyl)-substituted pyrimidine derivatives bearing 2,3-dihydroxypropyl, acyclovir-, ganciclovir- and penciclovir-like side chains are reported.A synthetic approach that included the alkylation of an N-anionic-5-substituted pyrimidine intermediate (method A) provided the target acyclonuc
A study was conducted in order to evaluate the contamination by Brucella spp.of meat from animals slaughtered because they had resulted positive for brucellosis at some time during their life.After slaughter and before delivery to market outlets, swab samples were taken from 307 carcasses of infected animals: 40 cattle, 60 sheep and 207 goats.The s
Aero-servo-elastic analysis of a complex hypersonic aircraft is presented in this paper.A structure geometry was designed and built based on Vases the X-43A vehicle.First, a three-dimensional structural finite element model was proposed with effective two-dimensional elements, which can obtain effective modal analysis results without useless local