42 Result(s)

Article

Catalytic properties of superhigh-silica zeolites in conversions of certain hydrocarbons

1. On the basis of decationized forms of superhigh-silica zeolites with a mole ratio SiO₂/Al₂O₃ from 33 to 83, n...

Kh. M. Minachev, V. I. Garanin… in Bulletin of the Academy of Sciences of the… (1982)

Article

Electroslag melting of tubular blanks with a curvilinear axis

A. P. Alikin, I. A. Parshutin, A. S. Fomin… in Chemical and Petroleum Engineering (1986)

Article

Transformations of n-pentane, n-hexane, and benzene on high-silica zeolites containing group VIII metals

1. It was found that reactions of hydrocracking and hydrogenolysis of n-pentane and n-hexane take place intensiv...

V. I. Garanin, I. L. Mironova, A. S. Fomin… in Bulletin of the Academy of Sciences of the… (1986)

Article

Hydrotreating and Reforming Plant at Komsomol'sk Refinery. Experience in Design,Construction, Start—up

In April 2001, a new naphtha reforming unit with output of 450,000 tons/year having a preliminary hydrotreating unit with output of 600,000 tons/year was started up at Rosneft@apos; Oil Company's Komsomol'sk R...

V. V. Napadovskii, V. V. Ezhov, I. N. Lapin… in Chemistry and Technology of Fuels and Oils (2002)

Article

Nanosized hydroxyapatite synthesized by precipitation in a gelatin solution

A. S. Fomin, S. M. Barinov, V. M. Ievlev, I. V. Fadeeva, V. S. Komlev… in Doklady Chemistry (2006)

Article

Silicon-containing hydroxylapatite nanopowders

Silicon-substituted hydroxylapatite nanopowders containing 0.14–1.4 wt % Si have been synthesized by the heterophase reaction between calcium hydroxide, diammonium hydrogen phosphate, tetraethoxysilane, and wa...

N. V. Bakunova, A. S. Fomin, I. V. Fadeeva… in Russian Journal of Inorganic Chemistry (2007)

Article

Effect of structural inhomogeneities on the dynamic stability of the photoelectric response of Cd_0.9Zn_0.1Te crystals

I(t)-dI/dt phase diagrams obtained under local and integral photoexcitation have been used to investigate the stability of the dynamic photoresponse of Cd_0.9Zn_0.1Te crystals containing two-dimens...

V. P. Migal, A. S. Fomin in Inorganic Materials (2007)

Article

Hydroxyapatite of platelet morphology synthesized by ultrasonic precipitation from solution

Hydroxyapatite (HA) synthesis by precipitation with urea from aqueous solutions of calcium nitrate and ammonium hydrogenphosphate is studied. Ultrasonication during the synthesis decreases the size of platelet...

A. V. Kuznetsov, A. S. Fomin, A. G. Veresov… in Russian Journal of Inorganic Chemistry (2008)

Article

Nanocrystalline hydroxyapatite ceramics produced by low-temperature sintering after high-pressure treatment

A. S. Fomin, S. M. Barinov, V. M. Ievlev, V. V. Smirnov… in Doklady Chemistry (2008)

Article

Stabilization of Carbonate Hydroxyapatite by Isomorphic Substitutions of Sodium for Calcium

Carbonate hydroxyapatite (CHA) is an analogue of the mineral component of bone tissue. Synthetic CHA is thermally unstable: it readily decomposes with carbon oxide evolution when sintered to ceramics. Its ther...

S. M. Barinov, I. V. Fadeeva, D. Ferro, J. V. Rau… in Russian Journal of Inorganic Chemistry (2008)

Article

Porous chitosan matrices reinforced by bioactive calcium compounds

A. Yu. Fedotov, V. V. Smirnov, A. S. Fomin, I. V. Fadeeva… in Doklady Chemistry (2008)

Article

Nanocrystalline hydroxyapatite ceramics

The possibility of using high pressures in uniaxial pressing and rolling of nanopowders is investigated. Obtainment of a nanocrystalline hydroxyapatite ceramic intended for use in medicine is studied. The sint...

A. S. Fomin, S. M. Barinov, V. M. Ievlev, V. V. Smirnov… in Inorganic Materials (2009)

Article

Low-temperature calcium carbonate ceramic

Investigations were carried out on development of a calcium carbonate ceramic with addition of potassium carbonate for regeneration of human osseous tissues. The initial materials included various calcium carb...

V. V. Smirnov, S. M. Barinov, A. S. Fomin… in Inorganic Materials: Applied Research (2010)

Article

Synthesis of octacalcium phosphate by precipitation from solution

V. S. Komlev, I. V. Fadeeva, A. S. Fomin, L. I. Shvorneva, D. Ferro… in Doklady Chemistry (2010)

Article

Synthesis of nanohydroxyapatite by precipitation from a starch-containing solution

A. S. Fomin, N. V. Plokhikh, I. V. Fadeeva, S. M. Barinov… in Doklady Chemistry (2010)

Article

Effect of thermal processing on characteristics of nanopowders of hydroxyapatite

The work is aimed at the study of the effect of the thermal history on the size, morphology, and structural characteristics of powders of hydroxyapatite designed for the preparation of nanocrystalline ceramics...

N. V. Bakunova, V. S. Komlev, L. I. Shvorneva… in Inorganic Materials: Applied Research (2011)

Article

Mechanical characteristics of composites of polylactide and nanosized calcium phosphates formed in supercritical carbon dioxide

Composite materials for biomedical applications based on polylactide, a bioresorbable polymer, and nanosized calcium phosphate (hydroxyapatite) were produced using supercritical (SC) carbon dioxide. For compos...

E. N. Antonov, A. V. Popova, I. I. Selezneva… in Russian Journal of Physical Chemistry B (2011)

Article

Zinc- and silver-substituted hydroxyapatite: Synthesis and properties

I. V. Fadeeva, N. V. Bakunova, V. S. Komlev, L’. Medvecký, A. S. Fomin… in Doklady Chemistry (2012)

Article

Gypsum transformation to calcium phosphates

M. A. Goldberg, A. S. Fomin, N. V. Petrakova, A. Yu. Fedotov… in Doklady Chemistry (2012)

Article

Ripening of calcium carbonate powders in low surface tension liquids

We have studied the ripening of calcium carbonate powders in a mother liquor for up to 18 days in relation to the content of different liquids having lower surface tension in comparison with water: dimethyl ke...

V. V. Smirnov, M. A. Goldberg, M. S. Lyakhova, O. S. Antonova… in Inorganic Materials (2013)