Results 1 to 10 of about 2,463,068 (192)
Congo Red Removal From Aqueous Solutions by Ion ExchangerAmberliteLA-2
مجلة المختار للعلوم, 2023 Amberlite LA-2 was used as an ion exchanger to remove Congo red dye from aqueous solution. The effect of the initial concentration of dye and the initial concentration of Amberlite LA-2 on the efficiency of dye removal from the aqueous phase to the ...
Aisha A. Alabbsi +3 more
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Mathematics, 2023 In this paper, we consider a class of matrix functions that contains regularization matrices of Mirzoev and Shkalikov for differential operators with distribution coefficients of order n≥2.
Natalia P. Bondarenko
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Journal of Natural Fibers, 2022 Environmentally benign dyes are used in the textile industry to reduce pollution. An attempt was been made to produce dyed silk cocoons. This was achieved by feeding modified mulberry leaf food containing dye spray solution to the silkworm larvae, Bombyx
Subrata Das +2 more
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Inverse Spectral Problems for Arbitrary-Order Differential Operators with Distribution Coefficients
Mathematics, 2021 In this paper, we propose an approach to inverse spectral problems for the n-th order (n≥2) ordinary differential operators with distribution coefficients.
Natalia P. Bondarenko
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Mathematics, 2023 We consider an inverse spectral problem that consists in the recovery of the differential expression coefficients for higher-order operators with separate boundary conditions from the spectral data (eigenvalues and weight numbers).
Natalia P. Bondarenko
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Reconstruction of Higher-Order Differential Operators by Their Spectral Data
Mathematics, 2022 This paper is concerned with inverse spectral problems for higher-order (n>2) ordinary differential operators. We develop an approach to the reconstruction from the spectral data for a wide range of differential operators with either regular or ...
Natalia P. Bondarenko
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Identification of parameters of heat supply facilities using telemetry data [PDF]
E3S Web of Conferences, 2023 The purpose of the study is to test the hypothesis about the possibility of using telemetry data to identify heat supply objects. The article considers 4 models approximating telemetry data. Determination coefficients and standard deviations were used to
Kitaytseva Elena
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Forward–backward SDEs with distributional coefficients [PDF]
Stochastic Processes and their Applications, 2020 Forward-backward stochastic differential equations (FBSDEs) have attracted significant attention since they were introduced almost 30 years ago, due to their wide range of applications, from solving non-linear PDEs to pricing American-type options. Here, we consider two new classes of multidimensional FBSDEs with distributional coefficients (elements ...
Issoglio E, Jing S
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Phase diagrams of zirconium dioxide systems with yttrium and scandium oxides
Конденсированные среды и межфазные границы, 2023 The literature data on the study of phase equilibria in systems zirconia with yttria and scandia are analysed. Possible schemes of low-temperature phase equilibria in ZrO2-Y2O3 and ZrO2-Sc2O3 systems are presented taking into account the third law of ...
Pavel P. Fedorov, Elena V. Chernova
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Mathematics, 2023 In this paper, we, for the first time, prove the local solvability and stability of an inverse spectral problem for higher-order (n>3) differential operators with distribution coefficients.
Natalia P. Bondarenko
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