Zobrazeno 1 - 10 of 31 pro vyhledávání: '"R. Melikyan"'
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Correlational Nonlinear Optical Femtosecond Laser Profilometer with Micrometer Spatial Resolution
Autor: G. D. Hovhannisyan, S. R. Melikyan, D. L. Hovhannisyan, K. B. Savkin, A. O. Vardanyan, S. V. Tikhomirov
Publikováno v: Measurement Techniques. 60:794-800
A new femtosecond correlation nonlinear optical profilometer with micron spatial resolution is proposed, in order to increase the measurement accuracy of the heterogeneity profile of a surface at a distance up to 1 km. The principle of operation of t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3498ba17cd6a4b842fb9d06ec76baef
https://doi.org/10.1007/s11018-017-1272-6
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3
Nonlinear Optical Laser Surface Profilometer
Autor: S. R. Melikyan
Publikováno v: Measurement Techniques. 57:1352-1355
A new nonlinear optical laser surface profilometer with micron surface resolution is considered. It is shown that with a resolution of the spectrometer of 0.23 nm the spatial resolution of the proposed method may reach 22.5 μm.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4ff3bfeebeec0b22234c0502ca52e48
https://doi.org/10.1007/s11018-015-0633-2
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4
Akademický článek
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7
Akademický článek
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8
Condensation of Unsaturated Compounds with Formaldehyde (the Prins Reaction)
Autor: S V Pokrovskaya, V R Melikyan, V I Isagulyants, T G Khaimova
Publikováno v: Russian Chemical Reviews. 37:17-25
CONTENTS I. Synthesis of 1,3-dioxans from olefins in the presence of acid catalysts 17 II. Synthesis of 1,3-dioxans from aryl-substituted olefins 18 III. Synthesis of 1,3-dioxans from halogeno-olefins 19 IV. Synthesis of 1,3-dioxans from cyclic olefi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be0e35c95c55aa16d7bdcc58761247b7
https://doi.org/10.1070/rc1968v037n01abeh001604
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9
Identification of structure and study of configuration of reaction products of endo-dicyclopentadiene with phenols by the1H and13C NMR method
Autor: A. U. Stepanyants, L. L. Vasil'eva, V. P. Lezina, K. I. Zimina, V. R. Melikyan, A. S. Murakhovskaya
Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 23:413-415
1. It was established by the13NMR spectroscopy method that Wagner-Meerwein rearrangement occurs when endo-dicyclopentadiene is reacted with phenol and the cresols, which leads to an exo-orientation of the cyclopentene ring. 2. The exo-orientation of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d56a926ea980cd97d1237d9ac07dad1c
https://doi.org/10.1007/bf00924702
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10
Synthesis of sulfate-type additives based on alkylphenols
Autor: T. G. Pashkova, V. I. Isagulyants, V. M. Dvortsova, V. R. Melikyan
Publikováno v: Chemistry and Technology of Fuels and Oils. 7:194-196
1. The alkylphenols obtained by alkylation of phenol, p-tert.-butylphenol, and p-tert.-octylphenol with α-olefins boiling in the ranges 180–240 and 240–320°C have been synthesized and characterized. 2. The sulfonic acids of the alkylphenols syn
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04ae42801f70541e3111e82c0b522d3e
https://doi.org/10.1007/bf00719534
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