Search Results - "Il’in, Yu. A."

Review of Research on the Qualitative Theory of Differential Equations at St. Petersburg University. II. Locally Qualitative Analysis of Essentially Nonlinear Systems by Begun, N. A., Vasilieva, E. V., Zvyagintseva, T. E., Il’in, Yu. A.

“…This paper is the second in a series of papers devoted to the results of scientific research that have been carried out at the Department of Differential…”
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On the Explicit Integration of Special Types of Differential Inequalities by Il’in, Yu. A.

“…A general method was proposed in our previous paper for explicitly finding all solutions of the differential inequality, which is based on the general solution…”
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General problems of explicit integration of differential inequalities by Il’in, Yu. A.

“…We consider the problem of the explicit search for all solutions of a first-order nonstrict differential inequality. We use the formula of the general solution…”
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A 240–380 GHz orotron with a double-row periodic structure and multifocal focusing spherocylindrical mirrors by Myasin, E. A., Evdokimov, V. V., Il’in, A. Yu

“…The potentialilty of increasing the generation power of a 240–380 GHz orotron with a double-row periodic structure and multifocal focusing spherocylindrical…”
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Three regimes of orotron with two-row periodic structure in the frequency interval 105–234 GHz by Myasin, E. A., Evdokimov, V. V., Il’in, A. Yu

“…The generation in orotron with a two-row periodic structure (period, 0.5 mm; slit-to-period ratio, 0.25; heights of the lower and upper rows, 0.3 and 0.5 mm,…”
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Orotron of the 2-mm-wavelength range with two electron beams by Myasin, E. A., Evdokimov, V. V., Il’in, A. Yu

“…An experimental study is aimed at an increase in the generated power of the 2-mm-wavelength orotron with a two-row periodic structure and three types of open…”
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Orotron with double-row periodic structure for the frequency range 140–300 GHz by Myasin, E. A., Evdokimov, V. V., Il’in, A. Yu

“…The orotron with the double-row periodic structure (DRPS) with a period of 0.2 mm on the plane mirror of an open cavity is studied using various types of…”
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A Method for Evaluating the Generation Power of Orotrons with a Two-Row Periodic Structure in the Frequency Range of 180–400 GHz by Myasin, E. A., Evdokimov, V. V., Il’in, A. Yu

“…A method for evaluating the generation power of orotron experimental models with a two-row periodic structure (TRPS), which operate with 2 × 10 –6 -s duration…”
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Spectral and Photophysical Parameters of a Series of Hydrophobic Phthalocyanines and Porphyrins in Aqueous Micellar Solutions by Starukhin, A. S., Korol’, Yu. D., Pavich, T. A., Shershen’, V. S., Il’in, A. Yu, Ramanenka, A. A.

“…A study has been carried out on the spectral and photophysical parameters of a series of hydrophobic metallocomplexes of phthalocyanine and porphyrins…”
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Universal smoking installation of rotary type by Aminov, V. A., Il'in, A. Yu

“…According to the research carried out by the authors the most technological installations for producing meat and fish products are oriented only on one type of…”
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Complex Investigation of the Absorption and Emission Spectra of Carbon Dioxide by Moskalenko, N. I., Zotov, O. V., Il’in, Yu. A., Parzhin, S. N., Khamidullina, M. S.

“…Absorption and emission spectra of carbon dioxide are measured and analyzed for temperatures 220–2500 K in the spectral range 1–25 μm. Intensities and…”
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Investigation of the Emission and Absorption Spectra of Water Vapor by Moskalenko, N. I., Il’in, Yu. A., Sadykov, M. S.

“…Emission and absorption spectra of water vapor are measured and analyzed for temperatures 350–2500 K in the spectral range 0.57–25 μm. Based on the developed…”
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Investigation of nonequilibrium hydroxyl emission spectra by Moskalenko, N. I., Zaripov, A. V., Il’in, Yu. A.

“…Ultraviolet nonequilibrium OH emission spectra in flames are measured and analyzed. Spectra of nonequilibrium coefficients are recorded for an optically thin…”
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Criteria of the Uniformity of the Temperature Field when Realizing the Tin and Zinc Fixed Points of the ITS-90 International Temperature Scale by Il'in, A. Yu

“…The results of an investigation of the temperature gradients of the zinc and tin fixed points under different thermal conditions are presented. The possible…”
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A terahertz orotron with double-row periodic structure and broad electron beam by Myasin, E. A., Evdokimov, V. V., Il’in, A. Yu

“…An orotron for the 140–300 GHz range with a double-row periodic structure on a sphero-cylindrical focusing mirror, the generatrix of which is parallel to the…”
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On the existence of a local-integral manifold of neural type for an essentially nonlinear system of differential equations by Il’in, Yu. A.

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2-mm resonance oscillator operating on the second spatial harmonic of a two-row periodic orotron structure by Myashin, E. A., Evdokimov, V. V., Il’in, A. Yu

“…Orotron generation in the resonance BWO mode on the second spatial harmonic of a two-row periodic structure with the parameters l = 0.6 mm and d/l ∼ 0.8 ( l is…”
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Measuring system with high spectral resolution for investigating flames by Moskalenko, N. I., Il'in, Yu. A., Kayumova, G. V.

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An analysis of the conditions for the formation of an internal interface and their effect on the freezing point of zinc by Ivanova, A. G., Il’in, A. Yu

“…The effect of the conditions for the formation of an internal interface on the freezing point of zinc of 99.9999% purity for different intensities of the…”
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Experimental investigation of heat transfer with evaporation of the agent from a corrugated capillary structure by Ivanovskii, M. N., Privezentsev, V. V., Il'in, Yu. A., Sidorenko, E. M.

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