2,149 research outputs found

    Wave Functions and Energy Terms of the SCHR\"Odinger Equation with Two-Center Coulomb Plus Harmonic Oscillator Potential

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    Schr\"odinger equation for two center Coulomb plus harmonic oscillator potential is solved by the method of ethalon equation at large intercenter separations. Asymptotical expansions for energy term and wave function are obtained in the analytical form.Comment: 4 pages, no figures, LaTeX, submitted to PR

    Intelligent OFDM telecommunication system. Part 3. Anti-eavesdropping and anti-jamming properties of system, based on many-parameter wavelet and Golay transforms

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    In this paper, we aim to investigate the superiority and practicability of many-parameter Fourier transforms (MPFT) from the physical layer security (PHY-LS) perspective. We propose novel Intelligent OFDM-telecommunication system (Intelligent-OFDM-TCS), based on MPFT. New system uses inverse MPFT for modulation at the transmitter and direct MPFT for demodulation at the receiver. The purpose of employing the MPFTs is to improve the PHY-LS of wireless transmissions against to the wide-band anti-jamming communication. Each MPFT depends on finite set of independent parameters (angles), which could be changed independently one from another. When parameters are changed, multi-parametric transform is also changed taking form of a set known (and unknown) orthogonal (or unitary) transforms. We implement the following performances as bit error rate (BER), symbol error rate (SER), the Shannon-Wyner secrecy capacity (SWSC) for novel Intelligent-MPWT-OFDM-TCS. Previous research has shown that the conventional OFDM TCS based on discrete Fourier transform (DFT) has unsatisfactory characteristics in BER, SWSC and in anti-eavesdropping communications. We study Intelligent-MPWT-OFDM-TCS to find out optimal values of angle parameters of MPFT optimized BER, SWSC, anti-eavesdropping effects. Simulation results show that the proposed Intelligent OFDM-TCS have better performances than the conventional OFDM system based on DFT against eavesdropping. Β© 2019 IOP Publishing Ltd. All rights reserved

    Spectra of Doubly Heavy Quark Baryons

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    Baryons containing two heavy quarks are treated in the Born-Oppenheimer approximation. Schr\"odinger equation for two center Coulomb plus harmonic oscillator potential is solved by the method of ethalon equation at large intercenter separations. Asymptotical expansions for energy term and wave function are obtained in the analytical form. Using those formulas, the energy spectra of doubly heavy baryons with various quark compositions are calculated analytically.Comment: 19 pages, latex2e, published at PRC61(2000)04520

    La formaciΓ³n profesional de los predictores hidrometeorolΓ³gicos en la U.R.S.S.

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    Operator method in solving non-linear equations of the Hartree-Fock type

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    The operator method is used to construct the solutions of the problem of the polaron in the strong coupling limit and of the helium atom on the basis of the Hartree-Fock equation. E0=βˆ’0.1085128052Ξ±2E_0=-0.1085128052\alpha^2 is obtained for the polaron ground-state energy. Energies for 2s- and 3s-states are also calculated. The other excited states are briefly discussed.Comment: 7 page

    Many factor mimo-filters

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    Π˜ΡΡΠ»Π΅Π΄ΡƒΠ΅Ρ‚ΡΡ ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ ΠΌΠΎΠ΄ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… ΠΌΠ½ΠΎΠ³ΠΎΡ„Π°ΠΊΡ‚ΠΎΡ€Π½Ρ‹Ρ… (Π±ΠΈ-, Ρ‚Ρ€ΠΈ- ΠΈ Ρ‡Π΅Ρ‚Ρ‹Ρ€Π΅Ρ…-Π»Π°Ρ‚Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ…) MIMO-Ρ„ΠΈΠ»ΡŒΡ‚Ρ€ΠΎΠ² для сСрых, Ρ†Π²Π΅Ρ‚Π½Ρ‹Ρ… ΠΈ Π³ΠΈΠΏΠ΅Ρ€ΡΠΏΠ΅ΠΊΡ‚Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… ΠΈΠ·ΠΎΠ±Ρ€Π°ΠΆΠ΅Π½ΠΈΠΉ. ΠžΠ±Ρ‹Ρ‡Π½Ρ‹Π΅ Π±ΠΈΠ»Π°Ρ‚Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹Π΅ Ρ„ΠΈΠ»ΡŒΡ‚Ρ€Ρ‹ ΠΎΡΡƒΡ‰Π΅ΡΡ‚Π²Π»ΡΡŽΡ‚ взвСшСнноС усрСднСниС сосСдних пиксСлСй. ВСса Π²ΠΊΠ»ΡŽΡ‡Π°ΡŽΡ‚ Π΄Π²Π΅ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Ρ‹: ΠΏΡ€ΠΎΡΡ‚Ρ€Π°Π½ΡΡ‚Π²Π΅Π½Π½ΡƒΡŽ ΠΈ Ρ€Π°Π΄ΠΈΠΎΠΌΠ΅Ρ‚Ρ€ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ. ΠŸΠ΅Ρ€Π²Π°Ρ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Π° ΡƒΡ‡ΠΈΡ‚Ρ‹Π²Π°Π΅Ρ‚ гСомСтричСскоС расстояниС ΠΌΠ΅ΠΆΠ΄Ρƒ Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½Ρ‹ΠΌ пиксСлСм маски ΠΈ Π΅Π³ΠΎ Π»ΠΎΠΊΠ°Π»ΡŒΠ½Ρ‹ΠΌΠΈ сосСдями. Π’Ρ‚ΠΎΡ€ΠΎΠΉ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ ΡƒΡ‡ΠΈΡ‚Ρ‹Π²Π°Π΅Ρ‚ радиомСтричСскоС расстояниС ΠΌΠ΅ΠΆΠ΄Ρƒ Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½Ρ‹ΠΌ пиксСлСм маски ΠΈ Π΅Π³ΠΎ Π»ΠΎΠΊΠ°Π»ΡŒΠ½Ρ‹ΠΌΠΈ сосСдями. Π’ этом классичСском Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠ΅ Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½Ρ‹ΠΉ пиксСль маски ΠΈΠ³Ρ€Π°Π΅Ρ‚ ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΡŽΡ‰ΡƒΡŽ Ρ€ΠΎΠ»ΡŒ Π² ΠΊΠΎΠ½Π΅Ρ‡Π½ΠΎΠΌ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ Ρ„ΠΈΠ»ΡŒΡ‚Ρ€Π°Ρ†ΠΈΠΈ. Если ΠΎΠ½ искаТСн, Ρ‚ΠΎ ΠΈ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ Ρ„ΠΈΠ»ΡŒΡ‚Ρ€Π°Ρ†ΠΈΠΈ Π±ΡƒΠ΄Π΅Ρ‚ искаТСнным. Π­Ρ‚ΠΎΡ‚ Ρ„Π°ΠΊΡ‚ опрСдСляСт ΠΏΠ΅Ρ€Π²ΡƒΡŽ ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΡŽ: Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½Ρ‹ΠΉ пиксСль замСняСтся Π΅Π³ΠΎ любой сглаТСнной вСрсиСй, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½ΠΎΠΉ Π½Π° основС сосСдних пиксСлСй. Вторая модификация ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅Ρ‚ ΠΌΠ°Ρ‚Ρ€ΠΈΡ‡Π½ΠΎ-Π·Π½Π°Ρ‡Π½Ρ‹Π΅ вСса. Они Π²ΠΊΠ»ΡŽΡ‡Π°ΡŽΡ‚ Ρ‡Π΅Ρ‚Ρ‹Ρ€Π΅ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Ρ‹: ΠΏΡ€ΠΎΡΡ‚Ρ€Π°Π½ΡΡ‚Π²Π΅Π½Π½ΡƒΡŽ, Ρ€Π°Π΄ΠΈΠΎΠΌΠ΅Ρ‚Ρ€ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ, ΠΌΠ΅ΠΆΠΊΠ°Π½Π°Π»ΡŒΠ½ΡƒΡŽ ΠΈ Ρ€Π°Π΄ΠΈΠΎΠΌΠ΅Ρ‚Ρ€ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ ΠΌΠ΅ΠΆΠΊΠ°Π½Π°Π»ΡŒΠ½ΡƒΡŽ. Π§Π΅Ρ‚Π²Π΅Ρ€Ρ‚Ρ‹ΠΉ вСс ΡƒΡ‡ΠΈΡ‚Ρ‹Π²Π°Π΅Ρ‚ радиомСтричСскоС расстояниС ΠΌΠ΅ΠΆΠ΄Ρƒ Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½Ρ‹ΠΌ пиксСлСм ΠΈ ΠΌΠ΅ΠΆΠΊΠ°Π½Π°Π»ΡŒΠ½Ρ‹ΠΌΠΈ сосСдними пиксСлями

    Effects of non-resonant interaction in ensembles of phase oscillators

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    We consider general properties of groups of interacting oscillators, for which the natural frequencies are not in resonance. Such groups interact via non-oscillating collective variables like the amplitudes of the order parameters defined for each group. We treat the phase dynamics of the groups using the Ott-Antonsen ansatz and reduce it to a system of coupled equations for the order parameters. We describe different regimes of co-synchrony in the groups. For a large number of groups, heteroclinic cycles, corresponding to a sequental synchronous activity of groups, and chaotic states, where the order parameters oscillate irregularly, are possible.Comment: 21 pages, 7 fig

    The Evolution of the «America» Concept Representation within the Framework of the American Photographic Discourse of the XX сentury

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    The present article is devoted to the analysis of the concept America as exemplified by the nominative paradigm of the American photographic discourse. The authors presume that the practical significance of the present article consists of the applicability of research results during the Practical English and American Studies classes due to the full language immersion to the linguocultural worldview of the USA by virtue of such photographs qualities as illustrative purpose and authenticity. The relevance of research is determined by the necessity of investigating the influence that the American photographic discourse has on the artistic and social-political spheres of society life. The aim of the present article is to study the constituents of America concept from the point of view of linguosynergetic approach interpreted as examination of the dynamic language system over a long period of time. The authors analyze the American photographic discourse as a complex communicative phenomenon, examine the interaction and interinfluence of the pictorial art and photography as part of the American artistic tradition. The authors analyze the semantic peculiarities of the America macro-concept and also carry out research regarding the structure of Area, Human, Architecture, Environment, History, Culture micro-concepts, which actualize the America macro-concept. The authors conclude that the nominative paradigm of the American photographic discourse is characterized by a high degree of anthropocentricity, personal photographers interest in the new objects of research (Hi-Tech, Human / Nude), searching the new forms of artistic photography. The evolution of the nominative paradigm results in decrease of the qualitative rate of Racism and The Great Depression concepts representatives as a result of the objective socio-historic events
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