106 research outputs found
Low Temperature Physics V. 23, I. 08
No full textLow Temperature Physics -- August 1997
Volume 23, Issue 8, pp. 599-683
Relaxation of concentration and temperature in superfluid mixtures 3He–4He at low temperatures
K. È. Nemchenko
Full Text: PDF (102 kB)
Small-amplitude oscillations of magnetization accompanying long-lived spin-precession in 3He-B
G. A. Kharadze, N. G. Suramlishvili, and G. E. Vachnadze
Full Text: PDF (125 kB)
Scaling of critical current in granular HTS materials
N. A. Bogoliubov
Full Text: PDF (120 kB)
On peculiarities of superconducting state formation in 2D metallic systems
V. P. Gusynin, V. M. Loktev, and S. G. Sharapov
Full Text: PDF (141 kB)
Lower critical fields of textured high-Tc superconductors
V. A. Finkel' and V. V. Toryanik
Full Text: PDF (98 kB)
Nonlinear stationary profile waves in spatially disordered magnetic media
E. A. Ivanchenko
Full Text: PDF (108 kB)
Magnetic and galvanomagnetic properties of the ordering Pd2AuFe alloys
N. I. Kourov, L. N. Tyulenev, and T. Mydlars
Full Text: PDF (80 kB)
Giant magnetoresistance of La0.5Pb0.2Ca0.2Y0.1MnO3 – delta films obtained by magnetron sputtering
S. I. Khartsev, V. N. Krivoruchko, and V. P. Pashchenko
Full Text: PDF (98 kB)
Spin structure of antiferromagnetic disclination
B. A. Ivanov, V. E. Kireev, and V. P. Voronov
Full Text: PDF (143 kB)
Dilatometric size effect in thin C60 films
A. T. Pugachev, N. P. Churakova, and N. I. Gorbenko
Full Text: PDF (448 kB)
Peculiarities of nonlinear electrical conductivity of two-dimensional ballistic contacts
M. V. Moskalets
Full Text: PDF (121 kB)
Thomas–Fermi screening of a moving surface charge
I. O. Kulik
Full Text: PDF (258 kB)
Study of surface phenomena in the ferroelastic phase transition in a semi-infinite crystal
N. M. Lavrinenko
Full Text: PDF (94 kB)
Neutron scattering and diffusive x-ray diffraction in acoustic modes in Nd2CuO4
D. V. Fil and A. L. Zazunov
Full Text: PDF (148 kB)
Effect of pressure on phase transitions in fluosilicate hexahydrates of bivalent metals
S. K. Asadov, È. A. Zavadskii, V. I. Kamenev, and B. M. Todris
Full Text: PDF (203 kB)
Influence of oxygen content and structural defects on low-temperature mechanical properties of high-temperature superconducting single crystals and ceramics
S. V. Lubenets, V. D. Natsik, L. S. Fomenko, H.-J. Kaufmann, V. S. Bobrov, and A. N. Izotov
Full Text: PDF (119 kB)Archived web conten
Russian Arctic Vegetation Archive – a new database of plant community composition and environmental conditions
No full textThe goal of the Russian Arctic Vegetation Archive is to unite and harmonize data of plot-based plant species and their abundance, vegetation structure and environmental variables from the Russian Arctic (including historical Soviet data). This database can be used to assess the status of the Russian Arctic vegetation and as a baseline to assess biodiversity changes in the future. The archive can be used for scientific studies as well as to inform nature protection and restoration efforts.The full description of the datasets and the data statistics are available on the Russian Arctic Vegetation Archive website (https://avarus.space/). We encourage you to use the website for communication with the datasets authors and AVA-RU team.
To properly reference the datasets, it is necessary and sufficient to provide citations for both the original publications and the AVA-RU data paper, which should be cited as follows:
Zemlianskii, V., Ermokhina, K., Schaepman-Strub, G., Matveyeva, N., Troeva, E., Lavrinenko, I., Petrzhik, N., Telyatnikov, M., Pospelov, I., Koroleva, N., Leonova, N., Lapina. A., Korolev, D., Khitun, O., Kadetov, N. Lavrinenko, O., Kurysheva, M., Gunin, Y., Kholod, S., Kudr, E. & Plekhanova, E., (2023). Russian Arctic Vegetation Archive – a new database of plant community composition and environmental conditions. Global Ecology and Biogeography, (issue number and pages).Funding provided by: Swiss Government Excellence Scholarship*Crossref Funder Registry ID: Award Number: 2019.0075Funding provided by: Russian Foundation for Basic ResearchCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100002261Award Number: 18-04-01010Funding provided by: Russian Science FoundationCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100006769Award Number: 20-17-00160Funding provided by: University Research Priority Program Global Change and Biodiversity (URPP GCB) - University of Zurich*Crossref Funder Registry ID: Award Number:The detailed description of the methodology could be found in the data paper: Zemlianskii, V., Ermokhina, K., Schaepman-Strub, G., Matveyeva, N., Troeva, E., Lavrinenko, I., Petrzhik, N., Telyatnikov, M., Pospelov, I., Koroleva, N., Leonova, N., Lapina. A., Korolev, D., Khitun, O., Kadetov, N. Lavrinenko, O., Kurysheva, M., Gunin, Y., Kholod, S., Kudr, E. & Plekhanova, E., (2023). Russian Arctic Vegetation Archive – a new database of plant community composition and environmental conditions. Global Ecology and Biogeography
EUNIS Habitat Classification: Expert system, characteristic species combinations and distribution maps of European habitats
No full textChytrý, M., Tichý, L., Hennekens, S.M., Knollová, I., Janssen, J.A.M., Rodwell, J.S., Peterka, T., Marcenò, C., Landucci, F., Danihelka, J., Hájek, M., Dengler, J., Novák, P., Zukal, D., Jiménez-Alfaro, B., Mucina, L., Abdulhak, S., Aćić, S., Agrillo, E., Attorre, F., Bergmeier, E., Biurrun, I., Boch, S., Bölöni, J., Bonari, G., Braslavskaya, T., Bruelheide, H., Campos, J.A., Čarni, A., Casella, L., Ćuk, M., Ćušterevska, R., De Bie, E., Delbosc, P., Demina, O., Didukh, Y., Dítě, D., Dziuba, T., Ewald, J., Gavilán, R.G., Gégout, J.-C., Giusso del Galdo, G.P., Golub, V., Goncharova, N., Goral, F., Graf, U., Indreica, A., Isermann, M., Jandt, U., Jansen, F., Jansen, J., Jašková, A., Jiroušek, M., Kącki, Z., Kalníková, V., Kavgacı, A., Khanina, L., Yu. Korolyuk, A., Kozhevnikova, M., Kuzemko, A., Küzmič, F., Kuznetsov, O.L., Laiviņš, M., Lavrinenko, I., Lavrinenko, O., Lebedeva, M., Lososová, Z., Lysenko, T., Maciejewski, L., Mardari, C., Marinšek, A., Napreenko, M.G., Onyshchenko, V., Pérez-Haase, A., Pielech, R., Prokhorov, V., Rašomavičius, V., Rodríguez Rojo, M.P., Rūsiņa, S., Schrautzer, J., Šibík, J., Šilc, U., Škvorc, Ž., Smagin, V.A., Stančić, Z., Stanisci, A., Tikhonova, E., Tonteri, T., Uogintas, D., Valachovič, M., Vassilev, K., Vynokurov, D., Willner, W., Yamalov, S., Evans, D., Palitzsch Lund, M., Spyropoulou, R., Tryfon, E., Schaminée, J.H.J
Engineering the Propagation of High-k Bulk Plasmonic Waves in Multilayer Hyperbolic Metamaterials by Multiscale Structuring
No full textSubwavelength metal-dielectric multilayers can be approximately regarded as anisotopic media having an effective permittivity tensor with components of different signs. Such multilayers, called hyperbolic metamaterials (HMMs), behave like metals or dielectrics depending on light polarization and feature exotic physical effects such as broadband singularity in the photonic density of states. It was shown that these photonic states are mainly populated by propagating high-k bulk plasmons, stemming from hybridization of short-range surface plasmon polaritons (SRSPPs) supported by individual metallic layers. These high-k waves can have anomalously short wavelength, which underlies the concept of far-field subwavelength imaging (hyperlensing) in HMMs. In this work, we show that propagation of these high-k bulk plasmons can be controlled by modulating, or superstructuring, the filling fraction of metal in a subwavelength metal-dielectric stack on a longer, wavelength scale. The basic superstructure geometry is a hybrid multiscale HMM where the modulation itself is periodic, forming a photonic band gap (PBG) for the high-k waves according to the same principles as in conventional photonic crystals. As a result, some of the propagating high-k waves (those whose wave vectors satisfy the PBG condition) become evanescent again. Changing the geometry of the superstructure from periodic to more complicated can further affect the properties of high-k wave propagation using known PBG-based approaches. It is thus possible to engineer a metamaterial where high-k bulk plasmons with desired properties can be selectively reflected, transmitted, localized, suppressed or enhanced. As an example, we propose several designs of proofof-principle multiscale devices such as Bragg reflectors, Fabry-Pérot resonators, and band pass filters for high-k waves. The proposed concept of multiscale HMMs can be used to tune the operation of HMM-based hyperlenses and subwavelength imaging devices. Spectrally selective multiscale HMMs can also be used to probe the spectral dependencies of HMM-induced effects, such as anomalous enhancement of spontaneous emission or blackbody radiation. In addition, the proposed structures can be employed to investigate other aspects of light-matter interaction in unusual environments
The specificity of value’s system of adolescents from informal unions with prevailing different tendencies in interpersonal communication
No full textThe article analyzes the specificity of value’s system
of adolescent from informal unions with prevailing different tendencies in
interpersonal communication. The actuality of the problem of values and interpersonal interaction of youth from subcultures correlation investigation
are identified by the author. The main aspects of personality’s value-meaning consciousness understanding, the role of interpersonal communication in its formation are analyzed by the author in the theoretical research.
The actual studies of value orientations of adolescents-representatives of
the subculture are described. The unsolved aspects of communication on
the formation of the value system of youth influence are identified. The
peculiarities of the value system of adolescents from subcultures as value
ideals and real values are analyzed by the author. The features of youth
tendencies in interpersonal interaction – orientation on communication
and its avoidance, acceptance or avoidance of struggle in relationships,
dependence and independence – are described. The peculiarities of adolescents from subcultures with the predominance of different tendencies in
interpersonal interaction value system are analyzed, and appropriate correlations are determined. Two factors «Interaction in subcultures as active
social self-realization» and «Interaction in subcultures as an inability to
stand actively in the formal group», which explain the role of interpersonal interaction in subcultures in the value system of youth formation, are
identified by the results of factor analysis. Conclusions and perspectives
of further research are defined on the basis of the empirical research data
generalization
Methodology for Analysing a Country’s Risk by Ukraine’s Example
No full textThis article analyses the methodology of country risk assessment. On the basis of common factors, it is possible to carry out an analysis of the of developed countries as well as developing countries. In order to represent International Country Risk Guide model, the author analyses Ukraine by three main components: political, economic and financial risks
Reflectors and resonators for high-k bulk Bloch plasmonic waves in multilayer hyperbolic metamaterials
No full textWe propose proof-of-concept designs of Bragg reflectors and Fabry-Pe´rot resonators for large wave vector waves (Bloch bulk plasmon polaritons) in multilayer metal-dielectric hyperbolic metamaterials. The designs are based on hybrid multilayers having both subwavelength and wavelength-scale structuring. This multiscale approach is shown to be a promising platform for using bulk plasmonic waves in complex multilayer metamaterials as a new kind of information carriers
Терміни «предмет трудового права» і «сфера дії (застосування) норм трудового права» в структурі понятійного апарату галузевого принципу обмеження сфери правового регулювання відносинами найманої праці.
No full textThe author of article carries out the review of the newest scientific doctrine and the essence, value and character of a parity of such terms, as «a subject of branch of the labour law» and «sphere of application of norms of the labour law» in structure of the special conceptual device branch labour law principle of restriction of sphere of legal regulation is understood by wage labour relations.Автором статьи осуществлен обзор новейшей научной доктрины и уяснена сущность, значение и характер соотношения таких терминов, как «предмет отрасли трудового права» и «сфера применения норм трудового права» в структуре специального понятийного аппарата отраслевого трудоправового принципа ограничения сферы правового регулирования отношениями наемного труда.Автором статті здійснено огляд новітньої наукової доктрини та з’ясована сутність, значення й характер співвідношення таких термінів, як «предмет галузі трудового права» та «сфера застосування норм трудового права» в структурі спеціального понятійного апарату галузевого трудо–правового принципу обмеження сфери правового регулювання відносинами найманої праці
Existence Conditions of High-k Modes in Finite Hyperbolic Metamaterials
No full textThe capability to support optical waves with very large wave vectors (high‐k) is one of the principle features of hyperbolic metamaterials (HMMs). These waves play the key role in HMM applications such as imaging and lifetime engineering. Effective medium approximation (EMA) as widely used analytical method to predict HMMs behavior, has shortcomings in calculating high‐k modes of practical structures. EMA is applicable to a subwavelength unit cell of implicitly infinite periodic structures. Using conventional EMA, in the present paper, boundary effects and spatial dispersion are taken into consideration to properly compute the high‐k modes of finite‐thickness multilayer HMMs. Applying nonlocal homogenization to stacks of alternating metal‐dielectric layers, the corresponding effective medium is examined as a high‐k waveguide sandwiched between the substrate and an ambient superstrate. The developed theory enables us to recognize two types of bulk waves coined as short‐range and long‐range propagating modes. Number of such modes as well as their cutoff conditions are quantified for the first time. Validity of the developed theory is verified both numerically by rigorous simulations of the multilayer structures with the transfer matrix method and experimentally by optical characterization of the HMMs in infrared regime.<br/
Effect of substrate on optical bound states in the continuum in 1D photonic structures
No full textOptical bound states in the continuum (BIC) are localized states with energy lying above the light line and having infinite lifetime. Any losses taking place in real systems result in transformation of the bound states into resonant states with finite lifetime. In this work, we analyze properties of BIC in CMOS-compatible one-dimensional photonic structure based on silicon-on-insulator wafer at telecommunication wavelengths, where the absorption of silicon is negligible. We reveal that a high-index substrate could destroy both off-Γ BIC and in-plane symmetry protected at-Γ BIC turning them into resonant states due to leakage into the diffraction channels opening in the substrate
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