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Browsing by Author "Alekseev A."

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A candidate for the Global Stratotype Section and Point at the base of the Serpukhovian in the South Urals, Russia

Richards B.; Nikolaeva S.; Kulagina E.; Alekseev A.; Gorozhanina E.; Gorozhanin V.; Konovalova V.; Goreva N.; Joachimski M.; Gatovsky Y. (2017)

© 2017, Pleiades Publishing, Ltd. The Verkhnyaya Kardailovka section is one of the best candidates for the GSSP (Global Stratotype Section and Point) at the base of the Stage (Mississippian). For boundary definition, the ...
An evaluation of biostratigraphic markers across multiple geological sections in the search for the GSSP of the base of the Serpukhovian Stage (Mississippian)

Nikolaeva S.; Alekseev A.; Kulagina E.; Gatovsky Y.; Ponomareva G.; Gibshman N. (2019)

© 2019 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS This paper aims to evaluate potential biostratigraphic markers for the Viséan–Serpukhovian boundary in sections of Europe ...
AspeRa: Aspect-based rating prediction model

Nikolenko S.; Tutubalina E.; Malykh V.; Shenbin I.; Alekseev A. (2019)

© Springer Nature Switzerland AG 2019. We propose a novel end-to-end Aspect-based Rating Prediction model (AspeRa) that estimates user rating based on review texts for the items and at the same time discovers coherent ...
Conodonts, ammonoids, foraminifers, and depositional setting of the Serpukhovian and Bashkirian stages in the Kugarchi Section in the South Urals, Russia

Nikolaeva S.; Kulagina E.; Gorozhanina E.; Alekseev A.; Konovalova V. (2017)

TheKugarchi Section in the Zilair Synclinorium in the SouthUrals (Russia, Bashkortostan) is one of themost complete sections of the Bukharcha Formation, including the entire Serpukhovian and the lower Bashkirian. This is ...
Determination of the Glass Transition Temperature of Freestanding and Supported Azo-Polymer Thin Films by Thermal Assisted Atomic Force Microscopy

Chernykh E.; Kharintsev S.; Fishman A.; Alekseev A.; Salakhov M. (2017)

© The Authors, published by EDP Sciences, 2017.In this paper we introduce and apply the method for determination of the glass transition temperature of the sub-100 nm thick freestanding and supported polymer films based ...
Electrochemical design of plasmonic nanoantennas for tip-enhanced optical spectroscopy and imaging performance

Kharintsev S.; Alekseev A.; Vasilchenko V.; Kharitonov A.; Salakhov M. (2015)

© 2015 Optical Society of America. Optical nanoantennas play a crucial role in controlling near-fields on the nanoscale and being counterparts of commonly used conventional optical components such as lens, prisms, gratings, ...
Electron paramagnetic resonance, acoustic EPR, and spontaneous spin-lattice relaxation at low temperatures

Alekseev A.; Kopvillem Y.; Nagibarov V. (1975)

The effect of the coherent properties of the exciting field on the rate of spin-lattice relaxation is evaluated. It is shown that at low temperatures and high transverse components of the magnetic and elastic multipoles, ...
Etchant-based design of gold tip apexes for plasmon-enhanced Raman spectromicroscopy

Kharintsev S.; Alekseev A.; Loos J. (2017)

© 2016 Elsevier B.V.In this paper, we gain insight into the design and optimization of plasmonic (metallic) tips prepared with dc-pulsed voltage electrochemical etching gold wires, provided that, a duty cycle is self-tuned. ...
Improving neural network models for natural language processing in Russian with synonyms

Galinsky R.; Alekseev A.; Nikolenko S. (2017)

© 2016 FRUCT.Recent advances in deep leaming for natural language processing achieve and improve over state of the art results in many natural language processing tasks. One problem with neural network models, however, is ...
Improving unsupervised neural aspect extraction for online discussions using out-of-domain classification

Alekseev A.; Tutubalina E.; Malykh V.; Nikolenko S. (2020)

© 2020 - IOS Press and the authors. All rights reserved. Deep learning architectures based on self-attention have recently achieved and surpassed state of the art results in the task of unsupervised aspect extraction and ...
Marine algal flora of the Late Viséan (Early Carboniferous) of the Moscow Basin

Gibshman N.; Alekseev A. (2017)

© 2017, Pleiades Publishing, Ltd. New data on the taxonomic composition of the algal flora of the Late Viséan of the Moscow Basin are discussed based on newly collected material. The algal assemblage comprises 24 taxa, 14 ...
Morphology and local electrical properties of PTB7:PC<inf>71</inf>BM blends

Alekseev A.; Hedley G.; Al-Afeef A.; Ageev O.; Samuel I. (2015)

© 2015 The Royal Society of Chemistry. The power conversion efficiency of single layer organic solar cells can approach 10% with blends such as the polymer PTB7 and the fullerene derivative PC<inf>71</inf>BM. Here the ...
Nanoscale mobility mapping in semiconducting polymer films

Alekseev A.; Yedrissov A.; Hedley G.J.; Ibraikulov O.; Heiser T.; Samuel I.D.W.; Kharintsev S. (2020)

© 2020 Elsevier B.V. Local electrical properties of thin films of the polymer PTB7 are studied by conductive atomic force microscopy (C-AFM). Non-uniform nanoscale current distribution in the neat PTB7 film is revealed and ...
Nonlinear Raman Effects Enhanced by Surface Plasmon Excitation in Planar Refractory Nanoantennas

Kharintsev S.; Kharitonov A.; Saikin S.; Alekseev A.; Kazarian S. (2017)

© 2017 American Chemical Society. We consider a nonlinear mechanism of localized light inelastic scattering within nanopatterned plasmonic and Raman-active titanium nitride (TiN) thin films exposed to continuous-wave (cw) ...
Photoinduced Heating of Freestanding Azo-Polymer Thin Films Monitored by Scanning Thermal Microscopy

Kharintsev S.; Chernykh E.; Fishman A.; Saikin S.; Alekseev A.; Salakhov M. (2017)

© 2017 American Chemical Society. Despite numerous attempts to capture a temperature rise in azobenzene-functionalized polymer thin films exposed to laser irradiation, so far no attention has been paid to direct temperature ...
Predicting the age of social network users from user-generated texts with word embeddings

Alekseev A.; Nikolenko S. (2017)

© 2016 FRUCT.Many web-based applications such as advertising or recommender systems often critically depend on the demographic information, which may be unavailable for new or anonymous users. We study the problem of ...
Prototype of classifier for the decision support system of legal documents

Alekseev A.; Katasev A.; Kirillov A.; Khassianov A.; Zuev D. (2020)

Copyright © 2020 for this paper by its authors. We propose a prototype of the classifier of electronic documents for the decision support system in the field of economic justice. The system uses both well-known text analytics ...
Scanning MOKE investigation of ion-beam-synthesized silicide films

Gumarov G.; Konovalov D.; Alekseev A.; Petukhov V.; Zhikharev V.; Nuzhdin V.; Shustov V. (2012)

Fe ions with an energy of 40 keV were implanted into Si plates with the fluence varying in the range of (1.6-3.0) × 10 17 ion/cm 2 in the external magnetic field. Scanning magnetooptical Kerr effect (MOKE) studies have ...
Superresolution stimulated Raman scattering microscopy using 2-ENZ nano-composites

Kharintsev S.; Kharitonov A.; Alekseev A.; Kazarian S. (2019)

© The Royal Society of Chemistry. Superlensing plays a crucial role in near- and far-field optical imaging with sub-wavelength resolution. One of the ways to expand optical bandwidth is surface plasmon resonances in layered ...
Synthesis and Antimycobacterial Activity of Hydrazides Based on Pyridoxine Derivatives

Khaziev R.; Shtyrlin N.; Lodochnikova O.; Volobueva N.; Chestnova R.; Alekseev A.; Romanova E.; Balakin K.; Shtyrlin Y. (2018)

© 2018, Pleiades Publishing, Ltd. Pyridoxine derivatives, 3-hydroxy-2-methylpyridine-4- and -5-carbohydrazides, were synthesized according to optimized known procedures, and a method for the synthesis of 5-(hydroxymethyl ...

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Browsing by Author "Alekseev A."

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