Karikh V.P.,Federal Research and Production Center Altai
Optoelectronics, Instrumentation and Data Processing | Year: 2012
The emergence and development of algorithms for three-dimensional reconstruction in X-ray tomography are considered in historical sequence. The data completeness condition for precise reconstruction of an object at one point is studied. It is shown that some precise algorithms are used to reconstruct part of the object from data satisfying the completeness condition for this part. Other algorithms for solving the same problem require a full set of data for the entire object. © 2012 Allerton Press, Inc.
Sukhanova A.G.,Russian Academy of Sciences |
Sakovich G.V.,Federal Research and Production Center Altai |
Sukhanov G.T.,Russian Academy of Sciences
Chemistry of Heterocyclic Compounds | Year: 2010
The N-monoalkylation of 3-nitro, 5-methyl-3-nitro, and 5-ethyl-3-nitro-1,2, 4-triazoles by epichlorohydrin polymers and copolymers is nonselective in the presence of base. The reaction products are nitrotriazoles substituted by the polymeric chain in positions 1 or 2 of the heterocycle. The mass fraction of the 2-isomer is 9.6-11.3%. The degree of substitution of the chlorine by the nitrotriazole ring is 98.0-99.5%. © 2010 Springer Science+Business Media, Inc.