Journals
Books
Articles by keyword ray
Direct Statistical Analysis of Leaner First-Order Control System by Uccessive Approximations Method
V.I. Esipenko, V.V. Smirnov
Theoretical and Experimental Researches of Polarizing Characteristics of Dihedral and Trihedral Angles
A.B. Borzov, K.P. Lihoedenko, I.V. Muratov, G.L. Pavlov, V.B. Suchkov
Measurement of Spectral Characteristics of Galactic Cosmic Rays by Spacecrafts Onboard Gauges
Yu.P. Vagin, A.A. Gusev, A.O. Nikitin, V.S. Chudnovskii
Dynamical Modelling of Radio-Wave Propagation Based on the Bi-Characteristic Method in the Presence of the Equatorial Anomaly
A.S. Kryukovsky, K.S. Kiryanova
About the stationary phase method use for express-evaluation of radome effect on antenna parameters
Yu. A. Kolosov, F. E. Levkov
The matched response and equivalent harmonic minimum criteria-s application in low power signal short data frequency measurement
D.S. Grigoryan
Some approaches of reducing a computation time in the Cone Step Mapping method using high quality height maps
S.A. Mikhailov, R.V. Sapronov
Algorithms of Spacebased SAR Antenna Adjustment Using Results of Non-Simultaneous Doppler and Range Measurements when Non-Regular Spaceships Orientation Errors Take Place
S.G. Likhansky
Probability of symbol error for demodulation qpsk-signals in channel with memory
V.G. Kartashevsky
The calculation of Fresnel lenses for microwave antennas
M.V. Koltsov, A.S. Raevskii, S.B. Raevskii
Calculation of changing phase trajectories at the multipath propagation in spherically layered media
V.I. Proskurin
Flat phased arrays rays control algorithms modification in monopulse meters
A.K. Zhuravlev, Yu.V. Baksheeva, A.A. Khomenko
Some laws of the projective theory of the inverse problems decision, defining limiting possibilities of resolution (super resolution) of separate dispersing elements of radar targets
А.А. Chizhov
The method of computational efficiency increasing of super rayleigh resolution
S.A. Klimov, V.M. Kosyakov, M.A. Sviridov
Crystal structure local atomic and magnetic order in nanocristal alloys Fe<sub>85</sub>B<sub>15</sub> and Fe<sub>77</sub>B<sub>23</sub>
V.S. Pokatlov, N.B. Djakonova, T.G. Dmitrieva, V.V. Pokatilov, A.J. Konovalova, A.V. Sklemin, K.M. Konkin
Reconstruction of two-dimensional images of radiation sources with superresolution
B.A Lagovsky, I.Y. Shumov
Superresolution, based on aperture synthesis with smart antennas
B.А. Lagovsky
Interference immunity of the signals receiving in the presence of intermodulation interferences
A.V. Levsha, V.V. Pechurin, Z.F. Shaydulin
Interference immunity of time-frequency matrices signals demodulation algorithm
N.S. Budvis - Design Engineer, JSC «Omsk research institute of instrument engineering». E-mail: info@oniip.ru
N.P. Chmyrova - Ph.D. (Eng.), leading research scientist, JSC «Omsk research institute of instrument engineering». E-mail: info@oniip.ru
Sensing time optimization in cognitive radio: one primary and one secondary user
А.Е. Limarev - Project director, JSC - Concern "Sozvezdie". E-mail: limarev@sozvezdie.su
Theoretical description and mathematical modeling of electromagnetic field focusings in metamaterials
A.S. Kryukovsky - Dr. Sc. (Phys.-Math.), Professor, Dean of the Faculty of Information Systems and Computer Technologies, Russian New University (Moscow). E-mail: kryukovsky@rambler.ru
Imaging radar targets with superresolution by algebraic methods
B.А. Lagovsky - Dr.Sc. (Eng.), Professor, Moscow State Technical University of Radio Engineering and Automation. E-mail: robertlag@yandex.ru
А.B. Samokhin - Dr.Sc. (Phys.-Math.), Professor, Head of Department of Applied Mathematics, Moscow State Technical University of Radio Engineering and Automation. E-mail: absamokhin@yandex.ru
А.S. Samokhina - Dr.Sc. (Eng.), Leading Research Scientist, Institute of Control Sciences of Russian Academy of Sciences. E-mail: assamokhina@yandex.ru
Using non-quadratic regularization for separation of rays in quasi stationary radio channel
Using non-quadratic regularization for separation of rays in quasi stationary radio channel M.S. Penzin - Junior Research Scientist, Institute of Solar-Terrestrial Physics SB RAS. E-mail: penzin.maksim@gmail.com
N.V. Il'in - Ph.D. (Phys.-Math.), Leading Research Scientist, Institute of Solar-Terrestrial Physics SB RAS. E-mail: ilyin@iszf.irk.ru
Evaluation of heavy ions flux, detectable in near-earth space by spacecraft
Yu.V. Boychenko - Research Engineer, OJC «RPC «PSI» (Moscow)
Yu.P. Vagin - Ph. D. (Eng.), Deputy General Product Engineer, Head of Department of OJC «RPC «PSI» (Moscow)
E.S. Kolodochkin - Head of Department of OJC «RPC «PSI» (Moscow)
K.S. Mozgov - Head of Department of OJC «RPC «PSI» (Moscow)
A.V. Stepanov - Leading Engineer, OJC «RPC «PSI» (Moscow)
V.S. Chudnovskiy - Dr. Sc. (Eng.), Deputy Head of Department of OJC «RPC «PSI» (Moscow)
The questions of software-defined networks concept application for downhole fiber optic telemetry systems
O.G. Morozov - Dr.Sc. (Eng.), Professor, Head of the Radiophotonics and Microwave Technologies Department, Kazan National Research Technical University named after A.N. Tupolev. E-mail: microoil@mail.ru
I.I. Nureev - Ph.D. (Eng.), Assistant Professor, the Radiophotonics and Microwave Technologies Department, Kazan National Research Technical University named after A.N. Tupolev. E-mail: n2i2@mail.ru
S.V. Feofilaktov - Post-graduate Student, the Radiophotonics and Microwave Technologies Department, Kazan National Research Technical University named after A.N. Tupolev. E-mail: fsv@irz.ru
D.A. Cherepanov - Post-graduate Student, the Radiophotonics and Microwave Technologies Department, Kazan National Research Technical University named after A.N. Tupolev. E-mail: irtos@irz.ru
Development of the basic conceptual apparatus. Comparative analysis for modes radiolocating mapping of ground
D. V. Konovalova - Programmer Engineer, Integrated Technology Research, Scientific Industrial Enterprise (OJSC Russia) (Moscow). E-mail: sapfir30@yandex.ru
G. I. Andreev - Post-graduate Student, Lebedev Institute of Precision Mechanics and Computer Engineering Russian Academy of Sciences (IPMCE) (Moscow). E-mail: andreeffgena@rambler.ru
V. V. Letunov - Post-graduate Student, Lebedev Institute of Precision Mechanics and Computer Engineering Russian Academy of Sciences (IPMCE) (Moscow). E-mail: vladimirletunov@yandex.ru
Noise immunity estimation of tropospheric communication systems with OFDM signals
E. N. Rychkov - Post-graduate Student, Siberian Federal University Radio Engineering department (Krasnoyarsk)
V. G. Patyukov - Dr.Sc. (Eng.), Professor, Siberian Federal University Radio Engineering department (Krasnoyarsk)
Probabilistic characteristics of radiocommunication systems that use time-frequency matrix signals
N.P. Khmyrova - Ph.D. (Eng.), Leading Research Scientist, PJSC «ONIIP». E-mail: info@oniip.ru
The nonthermal conversion of terahertz electromagnetic radiation in context of general thermodynamic laws
Yu.P. Chukova - Ph.D. (Phys.-Math)., Se-nior Research Scientist, Academician of the Russian People-s Academy of Science (RPAS), Head of Department «Public health and ecology safety of RPAS, Direc-tor of the Krasnopresnenskiy Ecological Fund, expert of UNESCOthe Moscow So-ciety of researchers of nature. Krasnopres-nenskiy Ecological Fund. Moscow. Russia. E-mail: y.chukova@mtu-net.ru
Impact of bandwidth and center frequency on the results of ultra-wideband power delay profile measurements
P.N. Zakharov - Ph. D. (Phys.-Math.), Associate Professor, Faculty of Physics, M.V. Lomonosov Moscow State University. E-mail: zakharov1@mail.ru A.F. Korolev - Ph. D. (Phys.-Math.), Associate Professor, Faculty of Physics, M.V. Lomonosov Moscow State University. E-mail: korolev_phys@mail.ru E.V. Mitrofanov - Post-graduate Student, Graduate Research Scientist, Kotel\'nikov Institute of Radioengineering and Electronics of RAS. E-mail: mitrofanov_ireran@mail.ru V.A. Cherepenin - Dr. Sc. (Phys.-Math.), Professor, Corresponding Memeber of RAS, Deputy Director of Kotel\'nikov Institute of Radioengineering and Electronics of RAS. E-mail: cher@cplire.ru
Two methods of calculating the characteristics of the strip dielectric waveguide
G. S. Malyshev - Post-graduate Student of Department of Physics and Technology of Optical Communication, Nizhny Novgorod State Technical University n.a. R.E. Alekseev E-mail: physics@nntu.nnov.ru A. Yu. Sedakov - Dr.Sc. (Eng.), Professor of Department of Physics and Technology of Optical Communication, Nizhny Novgorod State Technical University n.a. R.E. Alekseev; Director of the Research Institute of Measuring Systems n.a. Yu.E. Sedakov A. A. Titarenko - Dr.Sc. (Eng.), Associate Professor of Department of Physics and Technology of Optical Communication, Nizhny Novgorod State Technical University n.a. R.E. Alekseev; Deputy General Designer of the Research Institute of Measuring Systems n.a. Yu.E. Sedakov
High-resolution geocoded image synthesis with taking into account the whole set of perturbation factors in Spotlight Mode in airborne and spaceborne SAR
S.G. Likhanskyi - Ph.D. (Eng.), Leading Research Scientist, JSC «Concern «VEGA». E-mail: mail@vega.su
Dielectric properties of nanocomposites: opal matrix - titanate of Li-Zn and Bi
M.I. Samoylovich - Dr. Sc. (Phys.-Math.), Professor, Head of Department, Central Research Technological Institute «Technomash» (Moscow). E-mail: samoylovich@cnititm.ru A.F. Belyanin - Dr. Sc. (Eng.), Professor, Head of Laboratory, Central Research Technological Institute «Technomash» (Moscow). E-mail: belyanin@cnititm.ru A.S. Bagdasarian - Dr. Sc. (Eng.), Professor, Main Research Scientist, Kotel\'nikov IRE of RAS (Moscow) V. Bovtun - Dr. Sc. (Phys.-Math.), Leading Research Scientist, Institute of Physics ASCR (Praha) S.A. Bagdasarian - Ph. D. (Eng.), General Director JSC «Scientific Engineering Center «Technological Developments of Telecommunication and Radio Frequency Identification» (Moscow)
Application hyrostatic effect in the construction of the geophone
S.V. Moroz - Ph. D. (Eng.), Assistant Professor A.A. Persitshkin
Output beryllium window for multi-cathode x ray tube
I.A. Guzilov - Ph. D. (Eng.), Main Designer, «Vacuum devices basic technologies» Ltd (Moscow). E-mail: iag@bk.ru O.Yu. Maslennikov - Dr. Sc. (Eng.), Prof., Deputy General Director, «Vacuum devices basic technologies» Ltd (Moscow). E-mail: maslennikov_o@mail.ru V.N. Ilyin - Ph. D. (Eng.), Main Technologist, «Vacuum devices basic technologies» Ltd (Moscow) A.A. Kornyukhin - Deputy Commander, «Vacuum devices basic technologies» Ltd (Moscow) M.A. Tokaev - «Vacuum devices basic technologies» Ltd (Moscow) M.V. Chernova - Leading Technologist, «Vacuum devices basic technologies» Ltd (Moscow) V.S. Sizenev - Ph. D. (Eng.), JSC «Composite» (Korolev, Moscow region) L.S. Gitarskiy - employee of JSC «Composite» (Korolev, Moscow region)
The influence of fusing on the uniformity of the distribution of Yb<sup>3+</sup> ions and the formation of clusters in silica with phosphorus admixture synthesized by SPCVD
E.A. Savel\'ev - Post-graduate Student, Kotelnikov IRE RAS (Moscow). Е-mail: swoopermsu@pochta.ru K.M. Golant - Dr.Sc. (Phys.-Math.), Professor, Leading Research Scientist, Kotelnikov IRE RAS (Moscow)
Estimating the bearings of reflectors using the maximum likelihood method with a limited number of rays generated by the antenna array
V.N. Zhurakovsky - Ph. D. (Eng.), Associate Professor, Bauman Moscow State Technical University. E-mail: Zhurakovsky@sm.bmstu.ru D.V. Matunin - Engineer, Bauman Moscow State Technical University. E-mail: nineteeneightyfour@mail.ru S.I. Silin - Ph. D. (Eng.), Associate Professor, Bauman Moscow State Technical University. E-mail: sm2-2@inbox.ru
Preparation and structural stability ordered nanocomposites: opal matrix - lead titanates and terbium manganite
M.I. Samoylovich - Dr. Sc. (Phys.-Math.), Professor, Head of Department, Central Research Technological Institute «Technomash» (Moscow). E-mail: samoylovich@cnititm.ru A.F. Belyanin - Dr. Sc. (Eng.), Professor, Main Research Scientist, Central Research Technological Institute «Technomash» (Moscow). E-mail: belyanin@cnititm.ru A.S. Bagdasarian - Dr. Sc. (Eng.), Professor, Main Research Scientist, Kotel\'nikov IRE of RAS (Moscow). E-mail: bagdassarian@mail.ru S.A. Bagdasarian - Ph. D. (Eng.), General Director, JSC «Scientific Engineering Center «Technological Developments of Telecommunication and Radio Frequency Identification» (Moscow)
Informativeness of some characteristics for osteoporosis diagnosis on x ray images
V.R. Krasheninnikov - Dr. Sc. (Eng.), Professor, Head of Department «Applied Mathematics and Informatics», Ulyanovsk State Technical University E-mail: kvr@ulstu.ru A.A. Boitsov - Student, Department «Applied Mathematics and Informatics», Ulyanovsk State Technical University E-mail: boycov_21@mail.ru D.N. Karusev - Student, Department «Applied Mathematics and Informatics», Ulyanovsk State Technical University E-mail: denkarusev@yandex.ru
Design of high power microfocus X ray tube
E.Yu. Grachev - Ph. D. (Eng.), Associate Professor, Department «Industrial Electronics», Ryazan State Radio Engineering University E-mail: monopol_rus@mail.ru V.S. Gurov - Dr. Sc. (Eng.), Professor, Head of Department «Industrial Electronics», Rector of Ryazan State Radio Engineering University E-mail: gurovvs@mail.ru A.A. Skuntsev - Junior Research Scientist, Ryazan State Radio Engineering University E-mail: a_skuncev@mail.ru A.A. Trubitsyn - Dr. Sc. (Phys.-Math.), Professor, Department «Industrial Electronics», Ryazan State Radio Engineering University E-mail: assur@bk.ru
System frequencies and the quantization of the spec-trum of resonant radio transparency of the water en-vironment in radio range
А.V. Mayborodin - Ph.D. (Eng.) (1942-2010) V.I. Petrosyan - Ph.D. (Phys.-Math.), Leading Research Scientist, Research and Production Company «TELEMAC», Saratov E-mail: voldemarakva@yandex.ru O.V. Betskiy - Dr.Sc. (Phys.-Math.), Professor, Head of Laboratory, IRE RAS, Moscow, E-mail: betskii@yandex.ru S.V. Vlaskin - Ph.D. (Phys.-Math.), Technical Director, Research and Production Company «TELEMAC», Saratov E-mail: vl@telemak-saratov.ru; E-mail: s-vlaskin@yandex.ru S.A. Dubovitskiy - Ph.D. (Phys.-Math.), General Director, Research and Production Company «TELEMAC», Saratov E-mail: vl@telemak-saratov.ru
Precipitation electrons and cosmic rays as a possible conductor of the biological action of magnetic perturbations

A.A. Artamonov – Ph.D. Space Physics and Space Medicine, Lead Engineer, Research Center for Space Medicine, Russian State Research Center Burnasyan Federal Medical Biophysical Center of Federal Medical 

Biological Agency (Moscow)

E-mail: anton.art.an.gmail.com

Projection method for range resolution of group concentrated aerial objects with quasi-parallel verification of hypotheses about their numerical strength in active radars

S.M. Vyaznikov – Post-graduate Student, nibingiliat@mail.ru​​​​​​​
A.A. Chizhov – Dr.Sc.(Eng.), Associate Professor, Deputy Head, rtshouse@mail.ru

Interference immunity in channels with random phase and fading when using orthogonal coding and frequency modulation

Aleksei V. Rabin¹

 1  Saint-Petersburg State University of Aerospace Instrumentation (Saint-Petersburg, Russia) 1

 alexey.rabin@guap.ru

Three methods for calculating open dielectric waveguides

G. S. Malyshev – Engineer, JSC "Afrikantov Experimental Design Bureau for Mechanical Engineering" (Nizhny Novgorod)

Yu. V. Raevskaya – Ph.D. (Eng.), Associate Professor of Department of Physics and Technology of Optical Communication, Nizhny Novgorod State Technical University n.a. R.E. Alekseev

E-mail: raevskaja@forum.nn.ru

A. A. Titarenko – Dr.Sc. (Eng.), Associate Professor of Department of Physics and Technology of Optical Communication,

Nizhny Novgorod State Technical University n.a. R.E. Alekseev; Deputy Chief Designer of FRPC “Measuring System Research Institute n.a. Yu.Ye. Sedakov” (Nizhny Novgorod)

Physical conditions on the early Earth, early Sun, cosmic rays and technologies of the first living systems

M.V. Ragulskaya

Ph.D. (Phys.-Math.), Senior Research Scientist, Department of Solar Physics and Solar-Terrestrial Relations, Earth Institute Magnetism and Propagation of Radio Waves n. a. N.V. Pushkov RAS (Moscow, Troitsk) E-mail: ra_mary@mail.ru

Distributed strain and temperature measurements in optical fibers using Rayleigh OTDR with low-coherence radiation source

M.A. Taranov – Engineer, 

Fryazino Branch of Kotelnikov Institute of Radioengineering and Electronics of RAS

E-mail: tarma@petrofibre.ru

B.G. Gorshkov – Dr.Sc. (Eng.), Leading Research Scientist, 

Prokhorov General Physics Institute of RAS (Moscow)

A.E. Alekseev – Ph.D. (Phys.-Math.), Senior Research Scientist, 

Fryazino Branch of Kotelnikov Institute of Radioengineering and Electronics of RAS

V.T. Potapov – Dr. Sc. (Eng.), Head of Laboratory, 

Fryazino Branch of Kotelnikov Institute of Radioengineering and Electronics of RAS

Statistical models of fading signals propagated through the ionospheric satellite channels

V.V. Batanov1, L.E. Nazarov2

1,2 JSC academician M.F. Reshetnev Information Satellite Systems (Zheleznogorsk, Russia)

2  Kotel’nikov Institute of Radio-Engineering and Electronics of RAS (Fryazino, Russia)

Investigation of the convergence of the integration algorithm with the choice of the variable of integration at each step using the example of a Luneberg lens

K.I. Konov, K.N. Klimov

Moscow Aviation Institute (National Research University)

The models of transionospheric transmission channels with amplitude fading of signals

V.V. Batanov1, L.E. Nazarov2

1 JSC Academician M.F. Reshetnev «ISS» (Zheleznogorsk, Russia), 

2  Fryazino branch of Kotel'nikov IRE of RAS (Fryazino, Russian)

Two-channel detection algorithm with constant false alarm rate for log-normal envelope distribution for the surveillance radar

I.P. Losovskiy – Dr.Sc. (Eng.), Senior Research Scientist, Head of Department, JSC «SPA SRI of Measuring Instruments – Novosibirsk Plant Named After Comintern»
V.U. Leshchinskiy – Leading Engineer, JSC «SPA SRI of Measuring Instruments – Novosibirsk Plant Named After Comintern»
E-mail: wdm@ngs.ru

Use of artificial neural networks for the detection of broadband signals with a constant level of false alarms in radar surveys

V.Yu. Leshchinskiy – Leading Engineer,

JSC NPO «NIIIP-NziK» (Novosibirsk)

E-mail: wdm@ngs.ru

I.F. Lozovskiy – Ph.D. (Eng.), Senior Research Scientist, Head of Sector,

JSC NPO «NIIIP-NziK» (Novosibirsk) E-mail: lozov igor@yandex.ru

Heating of the moving object in microwave ray type chamber

K.N. Ogurtsov – Ph. D. (Eng.), Dr. Sc. Candidate, Associate Professor, Department «Power Supply and

Electrotechnology», Yuri Gagarin State Technical University of Saratov

E-mail: docento77@rambler.ru

I.N. Antonov – Dr. Sc. (Eng.), Professor, Department «Power Supply and Electrotechnology», 

Yuri Gagarin State Technical University of Saratov

E-mail: antonov2007@mail.ru

The heat sources distribution in a multi-layer parametric medium of the ray chamber

K.N. Ogurtsov – Ph. D. (Eng.), Dr. Sc. Candidate, Associate Professor, Department «Power Supply and Electrotechnology», Yuri Gagarin State Technical University of Saratov

E-mail: docento77@rambler.ru

I.N. Antonov – Dr. Sc. (Eng.), Professor, Department «Power Supply and Electrotechnology»,  Yuri Gagarin State Technical University of Saratov

E-mail: antonov2007@mail.ru

Physical optics method for numerical calculation of radar cross section of targets with complex shape

Artem P. Konovalchik – Ph.D. (Eng.), Deputy General Designer for Prospective Projects,

Joint-stock Company “Concern “Almaz – Antey” (Moscow, Russia)

E-mail: konovalchik@almaz-antey.ru

Maksim Yu. Konopelkin – Head of CAD Development,

Joint-stock Company “Concern “Almaz – Antey” (Moscow, Russia)

E-mail: m.konopelkin@almaz-antey.ru

Maksim A. Kudrov – Ph.D. (Eng.), Associate Professor, Head of the Laboratory, 

Moscow Institute of Physics and Technology (National Research University) (Moscow, Russia)

E-mail: mkudrov@mail.ru

Nicolay D. Karasev – Research Fellow, 

Moscow Institute of Physics and Technology (National Research University) (Moscow, Russia)

E-mail: nikolay.karasev.95@mail.ru

Umar G. Ibragimov – Research Fellow,, 

Moscow Institute of Physics and Technology (National Research University) (Moscow, Russia)

E-mail: umar.ibragimov@phystech.edu

Ivan A. Martynov – Research Fellow, 

Moscow Institute of Physics and Technology (National Research University) (Moscow, Russia) E-mail: martynov.ia@mipt.ru

Optimization method and theoretical limit of lumped objects' radar profile accuracy estimation

D.V. Panov – Ph. D. (Eng.), Dr. Sc. Candidate, Associate Professor, 

Vasilevsky Military Academy of Air Defense Forces RF (Smolensk) E-mail: pdvlist@list.ru

Comparative evaluation of solving methods efficiency for inverse scattering problem with respect to separate objects resolution from the grouped lumped and estimation of object’s radar profile

D.V. Panov – Ph. D. (Eng.), Dr. Sc. Candidate, Associate Professor, Associate Professor,  Vasilevsky Military Academy of Air Defense Forces RF (Smolensk)

E-mail: pdvlist@list.ru

A.A. Chizhov – Dr. Sc. (Eng.), Associate Professor, Deputy Head of Department of Radar Arms,  Vasilevsky Military Academy of Air Defense Forces RF (Smolensk)

E-mail: rtshouse@mail.ru

V.V. Abramenkov – Honored Scientist of RF, Dr. Sc. (Eng.), Professor, Senior Research Scientist,  Vasilevsky Military Academy of Air Defense Forces RF (Smolensk)

E-mail: avv63@mail.ru

S.A. Klimov – Ph. D. (Eng.), Associate Professor, Professor, Department of Radar Arms, 

Vasilevsky Military Academy of Air Defense Forces RF (Smolensk)

E-mail: zuk_house@rambler.ru

Low-complexity list MIMO demodulator with quasi-optimal error rate performance

G. Basbous1, A.V. Rashich2

1,2 Peter the Great St. Petersburg Polytechnic University (St. Petersburg, Russia)

1 ghena.basbous@gmail.com; 2 andrey.rashich@gmail.com

Communication channel parameters estimation using a ray tracing model in heterogeneous networks

S.V. Kozlov1, E.A. Spirina2, E.A. Nemtsev3, A.A. Spirina4

1–4 Kazan National Research Technical University named after A.N. Tupolev – KAI (Kazan, Russia)

1 SVkozlov@kai.ru, 2 EASpirina@kai.ru, 3 Egor.nemtcev.04@mail.ru, 4 Nastya_Sp_05@mail.ru