Autor: Sidorov, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Microwave radiometry in monitoring and emergency mapping of water seepage and dangerously high groundwaters
Autorzy:: Shutko, A. M.
Haldin, A.
Krapivin, V.
Novichikhin, E.
Sidorov, I.
Tishchenko, Y.
Haarbrink, R.
Georgiev, G.
Kancheva, R.
Nikolov, H.
Coleman, T.
Archer, F.
Pampaloni, P.
Paloscia, S.
Krissilov, A.
Camps Carmona, A.
Powiązania:: https://bibliotekanauki.pl/articles/307666.pdf
Data publikacji:: 2007
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: remote sensing
passive microwave radiometry
soil moisture
water seepage
risk assessment
Opis:: Detailed and geo-referenced maps identifying the locations of saturated and dry levees can be produced using microwave radiometric measurements from a light aircraft or helicopter, and integrated with GPS for positioning and orientation. The development of synergetic remote sensing technology for raised groundwater and seepage detection by the joint use of microwave and optical data along with GIS databases is an effective and most contemporary way of supporting risk assessment and facilitating disaster prevention and management. In this paper we present a remote sensing microwave technology for monitoring and detection of areas of water seepage through irrigation constructions, levees and dykes as well as for revealing areas with dangerously high groundwater level. The possibility for emergency response mapping, integrated with GPS and GIS data, facilitates the risk assessment and management services. The passive microwave radiometry (PMR) is based on spectral measurements in the millimetre to decimetre range of wavelengths. Compared to other remote sensing techniques, such as colour and infrared photography, thermal images and lidar, PMR is the only technology taking measurements under the earth's surface and therefore is very well suited for water seepage and underground water monitoring in a fast and reliable way.
Źródło:: Journal of Telecommunications and Information Technology; 2007, 1; 76-82
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Study of the Defect Structure of $Hg_{1-x}Cd_{x}Te$ Films by Ion Milling
Autorzy:: Pociask, M.
Izhnin, I.
Ilyina, E.
Dvoretsky, S.
Mikhailov, N.
Sidorov, Yu.
Varavin, V.
Mynbaev, K.
Powiązania:: https://bibliotekanauki.pl/articles/1811974.pdf
Data publikacji:: 2008-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.61.Ga
61.80.Jh
66.30.Lw
Opis:: A study of the defect structure of heteroepitaxially grown $Hg_{1-x}Cd_{x}Te$ (MCT) films was performed with the use of ion milling. Undoped and in situ As- (acceptor) or In- (donor) doped films with x=0.22, grown by molecular beam epitaxy on GaAs substrates, as-grown and annealed, were subjected to ion milling with subsequent electrical characterization. The results obtained on the MBE films were compared to those acquired on wafers cut from bulk crystals, and on epitaxial films grown by liquid and vapor phase epitaxy. In all the MBE films ion milling revealed a presence of a neutral defect with concentration ≈ $10^{17} cm^{-3}$, formed at the stage of the growth. Residual donor concentration in the films was found to be of the order of $10^{15} cm^{-3}$, which is typical of high-quality MCT.
Źródło:: Acta Physica Polonica A; 2008, 114, 5; 1293-1301
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: About correct method of analytical solution of multipoint boundary problems of structural mechanics for systems of ordinary differential equations with piecewise constant coefficients
Autorzy:: Akimov, P. A.
Sidorov, V. N.
Mozgaleva, M. L.
Powiązania:: https://bibliotekanauki.pl/articles/402376.pdf
Data publikacji:: 2010
Wydawca:: Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Opis:: This paper is devoted to correct method of analytical solution of multipoint boundary problems of structural mechanics for systems of ordinary differential equations with piecewise constant coefficients. Its major peculiarities include uni-versality, computer-oriented algorithm involving theory of distributions, computational stability, optimal conditionality of resultant systems and partial Jordan decomposition of matrix of coefficients, eliminating necessity of calculation of root vectors.
Źródło:: Structure and Environment; 2010, 2. no. 3; 21-24
2081-1500
Pojawia się w:: Structure and Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Magnetic Properties of FeSeTe Compound Crystallized from Liquid Phase
Autorzy:: Lewandowski, S.
Berkowski, M.
Tarenkov, V.
D'yachenko, A.
Abal'oshev, A.
Abal'osheva, I.
Gawryluk, D.
Domukhovski, V.
Sidorov, S.
Boichenko, D.
Powiązania:: https://bibliotekanauki.pl/articles/1536749.pdf
Data publikacji:: 2010-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.25.Ha
74.45.+c
74.62.Bf
74.70.Xa
75.30.Cr
Opis:: We report on measurements of samples with nominal composition $FeSe_{0.5}Te_{0.5}$, crystallized by the Bridgman method. Magnetic and transport properties of the samples were examined. The measurements confirm the coexistence of ferromagnetism and superconductivity below the superconducting transition temperature. The ferromagnetic contribution to magnetization, estimated at 10%, might be caused by the presence of ferrimagnetic $Fe_7Se_8$, which occupies about 10% of sample volume. From the Andreev spectroscopy we found superconducting energy gap Δ = 2.6 meV at T = 4.2 K, and from magnetization measurements the critical temperature $T_c$ = 15.8 K. The critical current density in magnetic field H = 4 kOe, determined from magnetization measurements, is $j_c$ = (1-2) × 1$0^4$ A/$cm^2$ and weakly depends on magnetic field intensity.
Źródło:: Acta Physica Polonica A; 2010, 118, 2; 289-291
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Stifness operator for boundary problems of structural analysis and several new variational formulations
Autorzy:: Zolotov, A. B.
Sidorov, V. N.
Akimov, P. A.
Mozgaleva, M. L.
Powiązania:: https://bibliotekanauki.pl/articles/402415.pdf
Data publikacji:: 2010
Wydawca:: Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Tematy:: stiffness operator
boundary problems
structural analysis
variational formulations
Opis:: So-called "stiffness operator" for boundary problems of structural analysis is introduced in the distinctive paper. There is a direct analogy between this stiffness operator and corresponding stiffness matrix of the considering structure in terms of finite element method. Namely we can consider stiffness operator as a limiting (continual) generalization of stiffness matrix. The explicit formulation of stiffness operator is presented. Several new variational formulations are discussed as well.
Źródło:: Structure and Environment; 2010, 2, 2; 9-13
2081-1500
Pojawia się w:: Structure and Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Mathematical Modeling and Numerical Analysis of Nonstationary Plane-Parallel Flows of Viscous Incompressible Fluid by R-Functions and Galerkin Method
Autorzy:: Artyukh, A.
Sidorov, M.
Powiązania:: https://bibliotekanauki.pl/articles/411247.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:: nonstationary flow
incompressible fluid
stream function
method of successive approximation
R-functions method
Galerkin method
Opis:: This paper is dedicated to nonstationary plane-parallel flows of viscous incompressible fluid in finite simply connected domains. Theorem of the solution uniqueness is presented. The method of successive approximation, the Galerkin method and the R-functions method are used to obtain the numerical solution, which was tested on the problem with known solution.
Źródło:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2014, 3, 3; 3-11
2084-5715
Pojawia się w:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Numerical Analysis of the Problem of Flow Past a Cylindrical Body Applying the R-Functions Method and The Galerkin Method
Autorzy:: Lamtyugova, S.N.
Sidorov, M. V.
Powiązania:: https://bibliotekanauki.pl/articles/410652.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:: viscous incompressible fluid
flow problem
R-functions method
Galerkin method
Opis:: The article considers the stationary problem of viscous incompressible fluid flow past a cylindrical body. For solving the problem it is proposed a numerical method, based on the joint use of R-functions method and the Galerkin method. The computational experiment has been conducted for the task of flow past square cylinder for different Reynolds numbers.
Źródło:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2014, 3, 3; 43-50
2084-5715
Pojawia się w:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Multi-objective heuristic feature selection for speech-based multilingual emotion recognition
Autorzy:: Brester, C.
Semenkin, E.
Sidorov, M.
Powiązania:: https://bibliotekanauki.pl/articles/91588.pdf
Data publikacji:: 2016
Wydawca:: Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:: multi-objective optimization
feature selection
speech-based emotion recognition
Opis:: If conventional feature selection methods do not show sufficient effectiveness, alternative algorithmic schemes might be used. In this paper we propose an evolutionary feature selection technique based on the two-criterion optimization model. To diminish the drawbacks of genetic algorithms, which are applied as optimizers, we design a parallel multicriteria heuristic procedure based on an island model. The performance of the proposed approach was investigated on the Speech-based Emotion Recognition Problem, which reflects one of the most essential points in the sphere of human-machine communications. A number of multilingual corpora (German, English and Japanese) were involved in the experiments. According to the results obtained, a high level of emotion recognition was achieved (up to a 12.97% relative improvement compared with the best F-score value on the full set of attributes).
Źródło:: Journal of Artificial Intelligence and Soft Computing Research; 2016, 6, 4; 243-253
2083-2567
2449-6499
Pojawia się w:: Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:: Biblioteka Nauki

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