119 Result(s)

Article

Determination of the positional characteristics of numbers in a remainder-class number system using threshold networks

V. M. Amerbaev, V. V. Ovchinnikov in Cybernetics (1970)

Article

Dipole moments of cyclic thio- and dithiophosphonates

The dipole moments of some cyclic thio- and dithiophosphonates were determined and it was postulated that the rings exhibit conformational lability.

E. A. Ishmaeva, R. A. Cherkasov… in Bulletin of the Academy of Sciences of the… (1971)

Article

Three-dimensional structure of phosphorus-containing heterocycles

The three-dimensional structure of a number of 2-thiono-1,3,2-dioxaphosphorinanes was studied by means of dipole moments, the Kerr effect, and theoretical conformational analysis with P³¹ NMR data. 2,4-Dimethyl- ...

A. N. Vereshchagin, R. P. Arshinova, S. G. Vul'fson… in Chemistry of Heterocyclic Compounds (1971)

Article

Investigation of conformational equilibrium in a series of some 1,3-dioxa-2-phosphorinanes

1. The IR spectra of certain 1,3-dioxa-2-phosphorinanes were studied under conditions of various polarities of t...

O. A. Raevskii, A. N. Vereshchagin… in Bulletin of the Academy of Sciences of the… (1972)

Article

Effective magnetic fields in ferromagnetic alloys of iron with manganese and nickel

A series of ferromagnetic alloys of iron with manganese and nickel were examined by the Mössbauer method. The intensities of hyperfine fields and the isometric shifts in these alloys have been determined as a ...

I. N. Bogachev, S. D. Karakishev, V. S. Litvinov… in Soviet Physics Journal (1974)

Article

Ionization constants and reactivity of spirophosphoranes with a P-H bond when reacted with diphenyldiazomethane

1. The potentiometric titration method was used to determine the ionization constants of some spiro- and monocyc...

V. V. Ovchinnikov, M. A. Pudovik… in Bulletin of the Academy of Sciences of the… (1977)

Article

Ionization constants of cyclic derivatives of phosphorus acids in n-propyl alcohol

1. Ionization constants for various types of cyclic phosphorus acids have been determined in abs. n-propanol. Th...

V. V. Ovchinnikov, V. I. Galkin… in Bulletin of the Academy of Sciences of the… (1977)

Article

Ionization constants and structure of seven- and eight-membered cyclic phosphorous acid derivatives

The spectral characteristics and ionization constants of some five-, seven-, and eight-membered cyclic arylenephosphorous acids were determined, and a conclusion regarding the effect of the size of the ring on...

V. V. Ovchinnikov, O. A. Cherkasova… in Bulletin of the Academy of Sciences of the… (1978)

Article

Dipole moments and structure of some cyclic phosphonic esters

1. We were the first to determine the group dipole moment of the 4,4,5,5-tetramethyl-2-oxo-1,3,2-dioxaphospholan...

É. A. Ishmaeva, V. V. Ovchinnikov… in Bulletin of the Academy of Sciences of the… (1978)

Article

Atomic distribution in low-concentration solid solutions based on iron

V. V. Ovchinnikov, V. S. Litvinov, N. V. Zvigintsev in Soviet Physics Journal (1981)

Article

Local analysis of an MHD generator with a t layer

V. V. Ovchinnikov, V. S. Slavin in Journal of Applied Mechanics and Technical Physics (1983)

Article

Digital diffusion analyzer

V. I. Kuznetsov, V. V. Ovchinnikov, V. D. Seleznev… in Measurement Techniques (1984)

Article

Microcomputerized gas-dynamic nuclear membrane pore-diameter monitoring

V. V. Ovchinnikov, V. D. Seleznev in Measurement Techniques (1989)

Article

Study of deformation processes in a loaded atomic membrane

V. I. Kuznetsov, V. V. Ovchinnikov… in Journal of Applied Mechanics and Technical… (1989)

Article

Flow of pure gases in polyethylene terephthalate nuclear ultrafiltration membranes

Measurements have been made on the surface flow of hydrogen, nitrogen, krypton, and xenon in polyethylene terephthalate membranes having pore sizes less than 15 nm. The gas-selective behavior is considered and...

V. V. Ovchinnikov, V. D. Seleznev, V. I. Kuznetsov in Journal of engineering physics (1990)

Article

Thermochemistry of heteroatomic compounds

The enthalpies of vaporization of different classes three-coordinated arsenic compounds have been determined according to their enthalpies of solution in hexane and molar refraction. The enthalpies of solvatio...

V. V. Ovchinnikov, T. B. Makeeva, L. I. Lapteva… in Journal of thermal analysis (1995)

Article

Evaporation dynamics at superatmospheric pressure

B. P. Avksentyuk, V. V. Ovchinnikov in Journal of Applied Mechanics and Technical Physics (1996)

Article

Thermochemistry of Heteroatomic Compounds X. The thermochemistry of solution and solvation of substituted alkylphosphonic derivatives

The enthalpies of vaporization of different classes of phosphorylated alcohols and amines were determined from their enthalpies of solution in hexane and carbon tetrachloride. The enthalpies of specific (hydro...

V. V. Ovchinnikov, E. V. Sagadeev… in Journal of Thermal Analysis and Calorimetry (1998)

Article

Mössbauer spectroscopy of interlayer boundaries in magneto-noncollinear [⁵⁷Fe/Cr]₁₂/MgO(100) superlattices

Results are presented of Mössbauer analyses of [⁵⁷Fe/Cr]¹²/MgO (100) superlattices. A combined approach was used, based on model calculations and a method of reconstructing the density distribution function P(H _h...

V. V. Ustinov, V. A. Tsurin, L. N. Romashev, V. V. Ovchinnikov in Technical Physics Letters (1999)

Article

Dynamics of explosive boiling of drops at the superheat limit

A physical model for explosive boiling of drops is presented. Loss of stability of the liquid-vapor interface results in occurrence of evaporation fronts. Their propagation in a metastable liquid is determined...

B. P. Avksentyuk, V. V. Ovchinnikov in Journal of Applied Mechanics and Technical Physics (1999)