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Of all publications in the section: 6
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Working paper
Sergei Valentinovich Fedorenko. Preprint. Preprint. Preprint, 2016
In this preprint, we present an example illustrating the novel method for the discrete Fourier transform (DFT) computation based on the Goertzel-Blahut algorithm introduced in the paper "Improving the Goertzel-Blahut algorithm" (IEEE Signal Processing Letters, vol. 23, no. 6, pp. 824-827, 2016).
Added: Feb 3, 2018
Working paper
Drovosekov A. B., Kreines N. M., Savitsky A. O. et al. arxiv.org. cond-mat. Cornell University, 2015
A set of thin film Mn<sub>x</sub>Si<sub>1-x</sub> alloy samples with different manganese concentration x = 0.44 - 0.63 grown by the pulsed laser deposition (PLD) method onto the Al<sub>2</sub>O<sub>3</sub> (0001) substrate was investigated in the temperature range 4 - 300 K using ferromagnetic resonance (FMR) measurements in the wide range of frequencies (f = 7 - 60 GHz) and magnetic fields (H = 0 - 30 kOe). For samples with x = 0.52 - 0.55, FMR data show clear evidence of ferromagnetism with high Curie temperatures T<sub>c</sub> ~ 300 K. These samples demonstrate complex and unusual character of magnetic anisotropy described in the frame of phenomenological model as a combination of the essential second order easy plane anisotropy contribution and the additional forth order uniaxial anisotropy contribution with easy direction normal to the film plane. We explain the obtained results by a polycrystalline (mosaic) structure of the films caused by the film-substrate lattice mismatch. The existence of extra strains at the crystallite boundaries leads to an essential inhomogeneous magnetic anisotropy in the film plane.
Added: Jun 17, 2016
Working paper
Kofanov Y. N. Моделирование. ПГУ_2018. Федеральное государственное бюджетное образовательное учреждение высшего образования «ПЕНЗЕНСКИЙ ГОСУДАРСТВЕННЫЙ УНИВЕРСИТЕТ» (ПГУ), 2018
In this paper, a method of virtual simulation of physical processes for early stages of design of onboard electronic means (OEM) has been developed and investigated. The corresponding virtual model is an integrated model that implements the simultaneous interaction of heterogeneous physical processes: electrical, thermal, mechanical, aerodynamic. This interconnection of physical processes allows for the first time to completely display the dynamic physical state of the supporting structure and the electronic components of the circuit located on it in the virtual model. At the same time, the output functional characteristics of OEM in virtual simulation take natural values that cannot be obtained in full-scale tests, because this full-scale tests are carried out separately and alternately. The visual images of the design and electronic components of OEM with superimposed color fields of temperature distribution, deformation or mechanical accelerations obtained with integrated virtual simulation allow on early stages of design to identify the most stressed and therefore dangerous places of possible overloads.
Added: Apr 11, 2018
Working paper
Исаев Е. А., Корнилов В. В., Тарасов П. А. и др. Препринт ФИАН. Физический институт имени П.Н. Лебедева Российской Академии Наук, 2014. № 8.
Currently in astronomy and astrophysics has seen significant growth in the experimental data. This paper discusses the major astronomical projects in terms of communication, storage and processing of big scientific data. We consider the relevance of these issues now and in the future.
Added: Feb 26, 2014
Working paper
Исаев Е. А., Думский Д. В., Зайцев А. Ю. и др. Препринт ФИАН. Физический институт имени П.Н. Лебедева Российской Академии Наук, 2010. № 8.
Added: Mar 7, 2013
Working paper
Исаев Е. А., Пугачев В. Д., Самодуров В. А. Препринт ФИАН. Физический институт имени П.Н. Лебедева Российской Академии Наук, 2011. № 17.
Added: Mar 7, 2013