Search Results - "Lyapin, A.A."

Comparative analysis of the application of different types of neural networks to the recognition of one-dimensional signals by Babushkina, N.E., Lyapin, A.A.

“…In the processes of determining the properties of materials and structures based on the study of the response to a given dynamic impact, the problem of…”
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Vibration based damage detection of bridge structures by Shatilov, Yu.Yu, Lyapin, A.A., Cherpakov, A.V., Glushko, S.G.

“…The task of identifying damage to the load-bearing beams of large-span bridge structures using vibration diagnostic methods has been implemented, taking into…”
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Prospects of automating the process of endovasal laser coagulation with using the visualization of the venous bed by Ryabochkina, P.A., Belyaev, A.N, Artemov, S.A., Taratynova, A.D., Lyapin, A.A., Khrushchalina, S.A., Kostin, S.V., Pyanzin, D.V., Spirin, A.V., Chaldyshkin, A.N., Artemyev, D.N.

“…At the work the scheme of the hardware and software complex for EVLC is suggested. The proposed complex consists of a laser device with the additional blocks…”
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Spatial anomalies in spectral-kinetic properties of Pr3+ - Doped LiY1-xLuxF4 mixed crystals by Gorieva, V.G., Lyapin, A.A., Korableva, S.L., Ryabochkina, P.A., Semashko, V.V.

“…We present the spectral-kinetic including excited state absorption spatial-dependent features of Pr3+ - doped LiY1-xLuxF4 mixed crystals grown by Bridgeman…”
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Embedding and backscattered scanning electron microscopy (EM-BSEM): A novel approach for the whole-specimen, ultrastructural analysis of cardiovascular tissues by Mukhamadiyarov, R.A., Bogdanov, L.A., Glushkova, T.V., Shishkova, D.K., Koshelev, V.A., Frolov, A.V., Stasev, A.N., Lyapin, A.A., Evtushenko, A.V., Kutikhin, A.G.

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Nonradiative energy transfer between Yb3+ and Tm3+ ions in Y2O3:Tm, Yb ceramics by Ryabochkina, P.A., Balashov, V.V., Volkova, T.V., Lyapin, A.A., Sidorova, N.V., Yurlov, I.A., Khrushchalina, S.A.

“…The work is aimed to study the processes of nonradiative energy transfer from Yb3+ ions to Tm3+ ions, as well as the processes of interaction between Tm3+ ions…”
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Infrared to visible up-conversion luminescence of SrF2:Ho particles upon excitation of the 5I7 level of Ho3+ ions by Chernov, M.V., Gushchin, S.V., Kuzmin, A.M., Kuznetsov, S.V., Lyapin, A.A., Proydakova, V. Yu, Ryabochkina, P.A., Voronov, V.V., Fedorov, P.P.

“…The visible and near-infrared (NIR) up-conversion luminescence (UCL) of a concentration series of fluoride phosphors SrF2:Ho (CHo = 1.3, 3.5, 4.8, 7.4, 8.9,…”
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Optical spectroscopy of the Er3+ ions in heavily doped BaY1.8Lu0.2F8:Er mixed crystals by Nizamutdinov, A.S., Shavelev, A.A., Astrakhantseva, A.V., Boldyrev, K.N., Nikolaev, A.G., Dunina, E.B., Kornienko, A.A., Pynenkov, A.A., Lyapin, A.A., Kuznetsov, S.V., Semashko, V.V.

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Investigation of the mechanisms of upconversion luminescence in Ho3+ doped CaF2 crystals and ceramics upon excitation of 5I7 level by Lyapin, A.A., Ryabochkina, P.A., Chabushkin, A.N., Ushakov, S.N., Fedorov, P.P.

“…The mechanisms of upconversion luminescence of CaF2:Ho crystals and ceramics from 5F3, 5S2(5F4), 5F5 and 5I6 levels upon excitation of 5I7 level of Ho3+ ions…”
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More than 2.3 W diode-pumped quasi-continuous-wave Pr,Mg:SrAl12O19 bulk laser and the first demonstration of Co:ZnSe-based passively Q-switched deep red laser at 724 nm by Zhou, L.B., Zou, J.Y., Zheng, W.X., Zhang, T., Xu, B., Xu, X.D., Lyapin, A.A., Xu, J.

“…•The highest CW output power of 1.63 W was obtained in Pr,Mg:SrAl12O19 laser at 643 nm.•The instantaneous output power can be further promoted to 2.32 W by…”
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Structural features and distribution coefficients of Pr 3+ , Y 3+ and Lu 3+ ions in LiY 1−x Lu x F 4 mixture crystals by Gorieva, V.G., Lyapin, A.A., Korableva, S.L., Kazakov, B.N., Pavlov, V.V., Kyashkin, V.M., Mishkin, V.P., Ryabochkina, P.A., Semashko, V.V.

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Nonradiative energy transfer of electronic excitation between Tm3+ ions in Y2O3:Tm laser ceramics by Artemov, S.A., Balashov, V.V., Chabushkin, A.N., Dmitriev, O.A., Khrushchalina, S.A., Kopylov, Yu.L., Larina, N.A., Lyapin, A.A., Ryabochkina, P.A., Volkova, T.V., Zakharov, N.G.

“…The cross relaxation of Tm3+ ions (3H4→3F4, 3H6→3F4) in Y2O3:Tm laser ceramics was studied. This process significantly affects the creation of an inverse…”
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Composite up-conversion luminescent films containing a nanocellulose and SrF2:Ho particles by Fedorov, P. P., Luginina, A. A., Kuznetsov, S. V., Voronov, V. V., Lyapin, A. A., Ermakov, A. S., Pominova, D. V., Yapryntsev, A. D., Ivanov, V. K., Pynenkov, A. A., Nishchev, K. N.

“…The synthesis of up-conversion luminescent composite films based on a nanocellulose matrix containing Sr 1−x Ho x F 2+x particles was proposed. The combination…”
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Preparation and properties of methylcellulose/nanocellulose/СаF 2 :Но polymer-inorganic composite films for two-micron radiation visualizers by Fedorov, P.P., Luginina, A.A., Kuznetsov, S.V., Voronov, V.V., Lyapin, A.A., Ryabochkina, P.A., Chernov, M.V., Mayakova, M.N., Pominova, D.V., Uvarov, O.V., Baranchikov, A.E., Ivanov, V.K., Pynenkov, A.A., Nishchev, K.N.

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Preparation and properties of methylcellulose/nanocellulose/СаF2:Но polymer-inorganic composite films for two-micron radiation visualizers by Fedorov, P.P., Luginina, A.A., Kuznetsov, S.V., Voronov, V.V., Lyapin, A.A., Ryabochkina, P.A., Chernov, M.V., Mayakova, M.N., Pominova, D.V., Uvarov, O.V., Baranchikov, A.E., Ivanov, V.K., Pynenkov, A.A., Nishchev, K.N.

“…[Display omitted] •Single-phase Ca1-xHoxF2+x (x=0.02-0.11) samples were synthesized by co-precipitation from aqueous citrate solutions.•Powders annealed at…”
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Ultrastructure of neointima of native and artificial elements of the blood circulatory system by Mukhamadiyarov, R A, Koshelev, V A, Frolov, A V, Mironov, A V, Shabaev, A R, Evtushenko, A V, Lyapin, A A, Kutikhin, A G

“…To compare the neointima structure in conduits for coronary bypass grafting, bioprosthetic heart valves, tissue-engineered vascular grafts, and metal stents…”
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Structural features and distribution coefficients of Pr3+, Y3+ and Lu3+ ions in LiY1−xLuxF4 mixture crystals by Gorieva, V.G., Lyapin, A.A., Korableva, S.L., Kazakov, B.N., Pavlov, V.V., Kyashkin, V.M., Mishkin, V.P., Ryabochkina, P.A., Semashko, V.V.

“…The spatially dependent spectral-kinetic and crystal structure properties of undoped and Pr3+ - doped LiY1−xLuxF4 mixed crystals grown by Bridgeman technique…”
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Spectroscopic, luminescent and laser properties of nanostructured CaF2:Tm materials by Lyapin, A.A., Fedorov, P.P., Garibin, E.A., Malov, A.V., Osiko, V.V., Ryabochkina, P.A., Ushakov, S.N.

“…•Crystals and ceramics CaF2:Tm were obtained.•The spectral-luminescent properties of ceramics and crystals of CaF2:Tm are similar.•The gain band of СаF2:Tm…”
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Mechanisms of Upconversion Luminescence in BaF2–HoF3 Crystals under Excitation to the 5I5 Level of Ho3+ Ions by Lyapin, A. A., Ryabochkina, P. A., Ermakov, A. S., Gushchin, S. V., Fedorov, P. P.

“…— We report a study of upconversion luminescence in BaF 2 –HoF 3 crystals in the visible spectral region under excitation to the 5 I 5 level of Ho 3+ ions by…”
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Infrared laser imaging based on up-conversion luminescence of SrF2:RE (RE = Er, Tm, Yb, Ho) by Gushchin, S.V., Kuznetsov, S.V., Lyapin, A.A., Proydakova, V.Yu, Ryabochkina, P.A., Fedorov, P.P., Chernov, M.V.

“…At the present time, infrared laser imaging based on up-conversion luminescence is used in different applications. These include bioimaging, biomedicine,…”
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