113,359 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
VIBRATIONAL ANHARMONICITY AND SCALING THE QUANTUM MECHANICAL MOLECULAR FORCE FIELD
No full text Yu. N. Panchenko, P. Pulay and F. T\""{o}r\""{o}k, J. Mol. Struct. 34, 283 (1976); V.I. Pupyshev, Yu.N. Panchenko, Ch. W. Bock and G. Pongor, J. Chem. Phys. 94, 1247 (1991); Yu. N. Panchenko, G.R. De Mar\'{e} and V.I. Pupyshev, J. Phys. Chem. 99, 17544 (1995); Yu. N. Panchenko, Moscow Univ. Chem. Bull. 51 (5), 23 (1996). D.M. Dennison, Rev. Mod, Phys. 12, 175 (1940); G.E. Hansen and D.M. Dennison, J. Chem. Phys. 20, 313 (1952).Author Institution: Laboratory of Molecular Spectroscopy, Division of Physical Chemistry, Department of Chemistry, M.V. Lomonosov Moscow State University; Laboratory of Molecular Structure and Quantum Mechanics, Division of Physical Chemistry, Department of Chemistry, M.V. Lomonosov Moscow State University; Chemistry Department, Philadelphia College of Textiles \& ScienceThe interrelationship between the scale factors obtained using Pulay's from the anharmonic and the harmonized vibrational frequencies of a light molecule and its heavy analogue is considered in terms of a Morse potential. The determination of the scale factors from the vibrational frequencies of a light molecule is shown to result in smaller deviations of the calculated and experimental vibrational frequencies of its heavy analogue than those of the reverse procedure. In this context the extent to which Dennison's is satisfied is also discussed
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
Ferromagnetic nanoparticles of iron/cobalt and iron/manganese oxides in aqueous solutions of surfactants
No full textPanchenko V. G., Sakhno T. V., Semenov A. O., Barashkov N. N., Sakhno Y. E. Ferromagnetic nanoparticles of iron/cobalt and iron/manganese oxides in aqueous solutions of surfactants. Nanobiophysics: Fundamental and Applied Aspects : 9-th international conference, 6-9 October 2025, Kharkiv, Ukraine, https://www.ilt.kharkov.ua/nbp2025/poster.htm
The role of mixing and homogeneity in modern biotechnological processes
No full textSakhno T., Semenov А., Panchenko V., Barashkov N., Sakhno Y. The role of mixing and homogeneity in modern biotechnological processes. Хімія, біотехнологія, екологія та освіта: Збірник матеріалів ІХ Міжнародної науково-практичної інтернет-конференції (м. Полтава, 15-16 травня 2025 року). – Полтава, 2025. – С. 18-20
Hypernyms extracted from a large text corpus using Hearst lexical-syntactic patterns
No full text<p><br>
The list of hyponym-hypernym pairs was obtained by applying lexical-syntactic patterns described in Hearst (1992) on the corpus prepared by Panchenko et al. (2016). This corpus is a concatenation of the English Wikipedia (2016 dump), Gigaword, ukWaC and English news corpora from the Leipzig Corpora Collection. The lexical-syntactic patterns proposed by Marti Hearst (1992) and further extended and implemented in the form of FSTs by Panchenko et al. (2012) for extracting (noisy) hyponym-hypernym pairs are as follows -- (i) such NP as NP, NP[,] and/or NP; (ii) NP such as NP, NP[,] and/or NP; (iii) NP, NP [,] or other NP; (iv) NP, NP [,] and other NP; (v) NP, including NP, NP [,] and/or NP; (vi) NP, especially NP, NP [,] and/or NP. Pattern extraction on the corpus yields a list of 27.6 million hyponym-hypernym pairs along with the frequency of their occurrence in the corpus. </p>
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
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
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
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
- …
