36,455 research outputs found
AR and VR in education: transforming the learning experience
No full textPanchenko A. V. AR and VR in education: transforming the learning experience / A. V. Panchenko, N. M. Zhukova // Тиждень науки-2025. Гуманітарний факультет. Тези доповідей науково-практичної конференції, Запоріжжя, 14-18 квітня 2025 р. / Редкол. : Вадим Шаломєєв (відпов. ред.) Електрон. дані. – Запоріжжя : НУ «Запорізька політехніка», 2025. – С. 190-192
Method of fuzzy inference for one class of MISO-structure systems with non-singleton inputs
No full textSinuk V. G. Method of fuzzy inference for one class of MISO-structure systems with non-singleton inputs / V. G Sinuk, M. V. Panchenko // IOP Conf. Series: Materials Science and Engineering. - 2018. - Vol.327. - 042074.In fuzzy modeling, the inputs of the simulated systems can receive both crisp values and non-Singleton. Computational complexity of fuzzy inference with fuzzy non-Singleton inputs corresponds to an exponential. This paper describes a new method of inference, based on the theorem of decomposition of a multidimensional fuzzy implication and a fuzzy truth value. This method is considered for fuzzy inputs and has a polynomial complexity, which makes it possible to use it for modeling large-dimensional MISO-structure systems
REGULARITIES IN VIBRATIONAL SPECTRA OF 1-TERT-BUTYL AND 1,2-DI-TERT-BUTYL DERIVATIVES OF 3,3-DIMETHYLCYCLOPROPENE AND THEIR SILICON, GERMANIUM, AND TIN ANALOGUES
No full text{Yu. N. Panchenko, G. R. De Mare, A. V. Abramenkov, M. S. Baird, V. V. Tverezovsky, A. V. Nizovtsev, and I. G. Bolesov, \textit{Spectrochim. Acta{G. R. De Mare, Yu. N. Panchenko, A. V. Abramenkov, M. S. Baird, V. V. Tverezovsky, A. V. Nizovtsev, and I. G. Bolesov, \textit{Spectrochim. ActaAuthor Institution: Laboratory of Molecular Spectroscopy, Division of Physical Chemistry,; Department of Chemistry, M. V. Lomonosov Moscow State University,; Moscow 119899, Russian Federation; Service de Chimie Quantique et de Photophysique; (Atomes, Molecules et Atmospheres), Faculte des Sciences; CP160/09, Universite Libre de Bruxelles,; Av. F. D. Roosevelt 50, B1050, Brussels, Belgium; Laboratory of Molecular Structure and Quantum Mechanics,; Division of Physical Chemistry, Department of Chemistry,; M. V. Lomonosov Moscow State University,; Moscow 119899, Russian FederationThe changes in the vibrational frequencies of 1-\textit{tert}-butyl and 1,2-di-\textit{tert}-butyl derivatives of 3,3-dimethylcyclopropene which occur when the central carbon atoms of the \textit{tert}-butyl moieties are substituted by silicon, germanium, or tin atoms are examined. The major decrease in the vibrational frequencies concerned (first of all the frequencies of moieties implicating the hetero atoms) is noted for the substitution of the C atom by the Si atom. Indeed, the shifts of these vibrational frequencies on going from the silicon analogue to the germanium one and from the germanium analogue to the tin one are not as pronounced as those for the CSi transition.% }, \underline{\textbf{59A}}, 1733 (2003) (and references therein).}% }, \underline{\textbf{60A}}, 519 (2003) (and references therein).} An explanation is given for such characteristic changes in these vibrational frequencies for the transitions CSiGeSn. The formation of cluster regions in the vibrational spectra is shown for the frequencies of the stretching vibrations of the SnC moieties. It is concluded that the vibrational frequencies corresponding to moieties containing the hetero-atoms tend towards lower limiting values as the mass of the isovalent atoms is increased
Termination kinetics of dibutyl itaconate free-radical polymerization studied via the SP-PLP-ESRTechnique
No full textThe termination kinetics of dibutyl itaconate(DBI) bulk polymerization was studied via SP-PLP-ESR single pulse-pulsed laser polymerization with time-resolved detection of free-radical concentration by electron-spin resonace, at temperature of PLP experiments,termination rate coefficients,k(1)(i,i), are measured for radicals of (almost) identical chain length (CL)i. CL-averaged , for chain lenghts up to 200 monomer units, and also k(t)(0) referring to termination of very small-size radicals are directly deduced from measured DBI radical concentration vs time traces. At 45degreesC, is (3.4 +/-0.6) (.) 10(5) L (.) mol(-1 .) s(-1) and k(t)(0) is (7.2 +/- 1.0) (.) 10(5) L (.) mol(-1) (.) s(-1). Both rate coefficients are independent of monomer conversion up to the highest experimental conversion of 18%. The associated activation energies are E-A() = 23.0 +/- 3.2 kJ (.) mol(-1) and E-A(k(0)(t)) = 27.6 +/- 2.8 kJ (.) mol(-1), respectively. "Model-dependent" and "model-free" analyses of radical concentration vs time profiles indicate a pronouced CL dependence of k(t)(i,i) for DBI radicals of moderate size, 5 and k(t)(0) from laser-induced photopolymerization of DBI
MANIFESTATION OF SECONDARY PERIODICITY IN THE STRUCTURAL AND VIBRATIONAL \\ CHARACTERISTICS OF 3,3-DIMETHYLCYCLOPROPENES DI- AND MONOSUBSTITUTED BY \\ --X (X = C, Si, Ge, Sn, Pb)
No full text% Yu. N. Panchenko, G. R. De Mare, A. V. Abramenkov, and A. de Meijere, Spectrochim. Acta% G. R. De Mare, Yu. N. Panchenko, and A. V. Abramenkov, Spectrochim. ActaAuthor Institution: Div. of Phys. Chem., Dept. of Chem., M. V. Lomo-no-sov; Moscow State University, Moscow 119992, Russian Federation; Universite Libre de Bruxelles, Faculte des Sciences; Service de Chimie Quantique et de Photophysique, CP160/09, 50 av.; F. D. Roosevelt, B1050 Brussels, BelgiumThe regularities of changes in the structural parameters and vibrational wavenumbers have been traced for certain moieties of the title compounds. The optimized geometrical parameters and the force fields of disubstituted \mbox{3,3-dimethylcyclopropenes}} \underline{65A}, 575 (2006).} and monosubstituted 3,3-dimethylcyclopropenes} \underline{67A}, 1094 (2007).} were determined at the HF/3-21G* and DDAll levels, respectively. The choice of these theoretical levels was brought about by peculiarities of GAUSSIAN~03 suite of programs for Sn and Pb atoms. The theoretical vibrational wavenumbers were calculated from the corresponding scaled force fields. The regularities obtained in the form of the zigzag lines are analogous to regularities that are characteristic to the atoms of the 14 (IVA) group of the Mendeleyev Periodic Table. This is known as the secondary periodicity phenomenon
SECONDARY PERIODICITY IN THE STRUCTURAL AND VIBRATIONAL CHARACTERISTICS OF 3,3-DIMETHYLCYCLOPROPENES DI- AND MONOSUBSTITUTED BY --X (X = C, Si, Ge, Sn, Pb)
No full text% Yu.~N.~Panchenko, G.~R.~De Mare, A.~V.~Abramenkov, and A.~de~Meijere, \textit{Spectrochim. Acta% G.~R.~De Mare, Yu.~N.~Panchenko, and A.~V.~Abramenkov, \textit{Spectrochim. ActaAuthor Institution: Div. of Phys. Chem., Dept. of Chem., M. V. Lomo\-no\-sov; Moscow State University, Moscow 119992, Russian Federation; Universite Libre de Bruxelles, Faculte des Sciences; Service de Chimie Quantique et de Photophysique, CP160/09, 50 av.; F. D. Roosevelt, B1050 Brussels, BelgiumThe regularities of changes in the structural parameters and vibrational wavenumbers have been traced for certain moieties of the title compounds. The optimized geometrical parameters and the force fields of disubstituted \mbox{3,3-dimethylcyclopropenes} \underline{65A}, 575 (2006).} and monosubstituted 3,3-dimethylcyclopropenes \underline{67A}, 1094 (2007).} were determined at the HF/3-21G* and DDAll levels, respectively. The choice of these theoretical levels was brought about by peculiarities of GAUSSIAN~03 suite of programs for Sn and Pb atoms. The theoretical vibrational wavenumbers were calculated from the corresponding scaled force fields. The regularities obtained in the form of the zigzag lines are analogous to regularities that are characteristic to the atoms of the 14 (IVA) group of the Mendeleyev Periodic Table. This is known as the secondary periodicity phenomenon
Informetrics on M. N. Srinivas
No full textM. N. Srinivas, the well known sociologist is widely recognised as architect of modern Indian sociology and social anthropology. His publications have been analysed by year, domain, authorship pattern, channels of communication used. Keywords, etc. The results indicate that the papers published by him are of a nature that qualify him to be a 'role model' for the younger generations to emulate.
By the end of 1995, Srinivas had to his credit 144 papers which, included 33 broad papers in sociology and anthropology; 18 papers in social change; 28 papers in village studies; 12 papers on religion; 17 papers on caste and 36 papers of general popular interest. The periods 1958-61 and 1974-77, when Srinivas was 38-41 and 58-61 years old. were his most productive periods with highest publication activity
Statistical-learning control of multiple-delay systems with application to ATM networks
No full textsummary:Congestion control in the ABR class of ATM network presents interesting challenges due to the presence of multiple uncertain delays. Recently, probabilistic methods and statistical learning theory have been shown to provide approximate solutions to challenging control problems. In this paper, using some recent results by the authors, an efficient statistical algorithm is used to design a robust, fixed-structure, controller for a high-speed communication network with multiple uncertain propagation delays
Doklady Physics V. 49, I. 01
No full textDoklady Physics -- January 2004
Volume 49, Issue 1, pp. 1-68
PHYSICS
New Forms of Crystalline Carbon
Yu. M. Korolev
pp. 1-4 Full Text: PDF (106 kB)
Quality of Focusing Electromagnetic Radiation by a Plane-Parallel Slab with a Negative Index of Refraction
A. N. Lagarkov and V. N. Kisel'
pp. 5-10 Full Text: PDF (283 kB)
Phase Diagrams for an Associated Solution
K. Yu. Shunyaev, N. A. Vatolin, and V. L. Lisin
pp. 11-14 Full Text: PDF (50 kB)
On the Mechanism of Formation of Incipient-Phase Nuclei in the Strong-Metastability Region
V. G. Baidakov
pp. 15-18 Full Text: PDF (66 kB)
Ion-Emission Properties of a Plasma in a Gaseous-Ion Source with a Plasma Cathode
N. V. Gavrilov and A. S. Kamenetskikh
pp. 19-21 Full Text: PDF (43 kB)
Anomalous Tracer Transport in the Stochastic Advection Model
I. L. Dranikov, P. S. Kondratenko, and L. V. Matveev
pp. 22-24 Full Text: PDF (55 kB)
Analytical Expression of the Kapitza Magnetoresistance Law
N. N. Sirota
pp. 25-29 Full Text: PDF (58 kB)
Empirical Properties of the Cross Sections for Dissociative Excitation of Cadmium in e–CdX2 (X = Cl, Br, I) Collisions
Yu. M. Smirnov
pp. 30-34 Full Text: PDF (53 kB)
Characteristics of a Relativistic Electron Avalanche in Air
L. P. Babich, E. N. Donskoy, I. M. Kutsyk, and R. A. Roussel-Dupre
pp. 35-38 Full Text: PDF (52 kB)
Regular and Stochastic Nonlinear Dynamics of Magnetization in an Exchange-Coupled Multilayer Structure
D. I. Sementsov and A. M. Shutyi
pp. 39-42 Full Text: PDF (74 kB)
TECHNICAL PHYSICS
Optimizing the Reception of Signals Emitted by Ultrashort-Pulse Antennas
L. D. Bakhrakh and M. Ya. Izrailovich
pp. 43-46 Full Text: PDF (49 kB)
Shape Memory Effects in FeNiCoTi Single Crystals Undergoing gammaalpha[prime] Thermoelastic Martensitic Transformations
Yu. I. Chumlyakov, I. V. Kireeva, E. Yu. Panchenko, E. G. Zakharova, V. A. Kirillov, S. P. Efimenko, and H. Sehitoglu
pp. 47-50 Full Text: PDF (62 kB)
ASTRONOMY, ASTROPHYSICS, COSMOLOGY
Distribution and Variations of Galactic Cosmic Rays in the Heliosphere According to Meteorite Data
V. A. Alexeev, V. D. Gorin, and G. K. Ustinova
pp. 51-54 Full Text: PDF (64 kB)
MECHANICS
On Gas Flows with a "One-Dimensional" Velocity Potential
L. V. Ovsyannikov
pp. 55-57 Full Text: PDF (41 kB)
Averaging Algorithms for Problems of the Theory of Elasticity on Rectangular Grids Nonconforming to the Structure of a Medium
V. P. Myasnikov, M. Yu. Zaslavsky, and A. Kh. Pergament
pp. 58-63 Full Text: PDF (96 kB)
Swing Problem
A. P. Seyranian
pp. 64-68 Full Text: PDF (66 kB)Archived web conten
Doklady Physics V. 48, I. 01
No full textDoklady Physics -- January 2003
Volume 48, Issue 1, pp. 1-55
PHYSICS
Features of the Electrode Erosion for Discharge-Current Amplitudes above 105 A
A. A. Bogomaz, A. V. Budin, V. A. Kolikov, M. É. Pinchuk, A. A. Pozubenkov, and Ph. G. Rutberg
pp. 1-4 Full Text: PDF (145 kB)
Possible Relation between Optical Breakdown and Metallization of Extremely Pure Transparent Dielectrics
S. V. Karpenko, A. P. Savintsev, and A. I. Temrokov
pp. 5-8 Full Text: PDF (51 kB)
Novel Designs of Semiconductor Lasers
V. A. Gelovani and V. I. Shveikin
pp. 9-12 Full Text: PDF (57 kB)
The Critical Point of an Exothermic Reactor
A. Yu. Dovzhenko, M. Dovzhenko, L. B. Mashkinov, and É. N. Rumanov
pp. 13-17 Full Text: PDF (300 kB)
Self-Similar Rotation of a Toroidal Plasma Configuration
N. D. Naumov
pp. 18-20 Full Text: PDF (41 kB)
Production and Properties of Europium Polytantalate Single Crystals
V. S. Vasil'ev, M. M. Pinaeva, and G. F. Pinaev
pp. 21-23 Full Text: PDF (141 kB)
Cavitation and Thermonuclear Fusion. Estimates of the Parameters and a Possible Method of Obtaining Positive Energy Balance
V. A. Namiot
pp. 24-29 Full Text: PDF (255 kB)
TECHNICAL PHYSICS
Solid-State Synthesis and Martensitic Transformations in Thin Films
V. G. Myagkov, L. E. Bykova, and G. N. Bondarenko
pp. 30-33 Full Text: PDF (58 kB)
Features of Thermoelastic Martensitic Transformations in [001] Titanium–Nickel Single Crystals
E. Yu. Panchenko, I. V. Kireeva, Yu. I. Chumlyakov, V. B. Aksenov, S. P. Efimenko, I. Karaman, and H. Sehitogly
pp. 34-37 Full Text: PDF (56 kB)
MECHANICS
Conditions of Stability in the Sense of Joukowski for the Orbits of Equations of Celestial Mechanics
O. V. Druzhinina
pp. 38-41 Full Text: PDF (51 kB)
Some Properties of the Set of Homogeneous Solutions of Elasticity Theory
G. G. Sebryakov, M. D. Kovalenko, and N. N. Tsybin
pp. 42-45 Full Text: PDF (56 kB)
Description of Dynamic Effects Accompanying Vibrations of Strings Near T-Beam Stops
V. L. Krupenin
pp. 46-50 Full Text: PDF (77 kB)
Sound Scattering in a Wake beyond a Vortex Ring in a Continuously Stratified Liquid
V. E. Prokhorov and Yu. D. Chashechkin
pp. 51-55 Full Text: PDF (436 kB)Archived web conten
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