Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Nikitin, Viktor V."'
Fast multi-phase processes in methane hydrate-bearing samples are challenging for micro-CT quantitative study because of complex tomographic data analysis involving time-consuming segmentation procedures. This is due to the sample multi-scale structu
Externí odkaz:
http://arxiv.org/abs/2209.04098
Autor:
Nikitin, Viktor V., Dugarov, Geser A., Duchkov, Anton A., Fokin, Mihail I., Drobchik, Arkadij A., Shevchenko, Pavel D., De Carlo, Francesco, Mokso, Rajmund
We present the results of dynamic in-situ 3D X-ray imaging of methane hydrates microstructure during methane hydrate formation and decomposition in sand samples. Short scanning times and high resolution provided by synchrotron X-rays allowed for bett
Externí odkaz:
http://arxiv.org/abs/1907.03052
Since the beginnings of tomography, the requirement that the sample does not change during the acquisition of one tomographic rotation is unchanged. We derived and successfully implemented a tomographic reconstruction method which relaxes this decade
Externí odkaz:
http://arxiv.org/abs/1809.09725
Publikováno v:
Journal of Synchrotron Radiation. Sep2023, Vol. 30 Issue 5, p978-988. 11p.
The hyperbolic Radon transform is a commonly used tool in seismic processing, for instance in seismic velocity analysis, data interpolation and for multiple removal. A direct implementation by summation of traces with different moveouts is computatio
Externí odkaz:
http://arxiv.org/abs/1604.07651
Autor:
Nikitin, Viktor V., Fokin, Mikhail I., Dugarov, Geser A., Drobchik, Arkady N., Andrade, Vincent De, Shevchenko, Pavel D., Manakov, Andrey Yu., Duchkov, Anton A.
Publikováno v:
In Fuel 15 August 2021 298
The Radon transform and its adjoint, the back-projection operator, can both be expressed as convolutions in log-polar coordinates. Hence, fast algorithms for the application of the operators can be constructed by using FFT, if data is resampled at lo
Externí odkaz:
http://arxiv.org/abs/1506.00014
Publikováno v:
In Computers and Geosciences August 2017 105:21-33
Autor:
Drobchik, Arkady N.1 (AUTHOR), Nikitin, Viktor V.2 (AUTHOR), Fokin, Mikhail I.1 (AUTHOR), Dugarov, Geser A.1 (AUTHOR), Shevchenko, Pavel D.2 (AUTHOR), Deriy, Alex L.2 (AUTHOR), Manakov, Andrey Yu.3 (AUTHOR), Kuper, Konstantin E.4 (AUTHOR), Duchkov, Anton A.1,5 (AUTHOR) duchkovaa@ipgg.sbras.ru
Publikováno v:
Journal of Synchrotron Radiation. Mar2022, Vol. 29 Issue 2, p515-521. 7p.
Activity of phenoxy-imine titanium catalysts in ethylene polymerization: A quantum chemical approach
Autor:
Nikitin, Sergey V., Nikitin, Viktor V., Oleynik, Ivan I., Oleynik, Irina V., Bagryanskaya, Elena G.
Publikováno v:
In Journal of Molecular Catalysis. A, Chemical November 2016 423:285-292