40 research outputs found
ΠΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΡ ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ½ΠΈΡΡΠΈΡΠΎΠΌ ΠΊΠ°ΠΊ ΡΠΏΠΎΡΠΎΠ± ΡΠ»ΡΡΡΠ΅Π½ΠΈΡ ΡΠΈΡΠΎΡΠΎΠ²ΠΌΠ΅ΡΡΠΈΠΌΠΎΡΡΠΈ Π³ΠΈΠ΄ΡΠΎΠ³Π΅Π»Π΅ΠΉ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π°Π»ΡΠ³ΠΈΠ½Π°ΡΠ° Π½Π°ΡΡΠΈΡ
Sodium alginate is one of the most frequently used materials in biomedicine. However, alginate-based scaffolds have extremely low adhesive properties and have to be improved. The authors have proposed combined hydrogels of gelatin and sodium alginate which have been modified by peroxynitrite in heterophasic conditions using ethanol. It has been determined that thus modified sodium alginate contains an increased level of carbonyl, carboxyl and nitro groups. Authors have developed chemically and chemical-enzymatically cross-linked hydrogels with better adhesive properties and absence of cytotoxicity. Moreover, sodium alginate modification has a positive impact on cell morphology in comparison with control group of non-adhesive alginate-gelatin hydrogels. It allows the further improvement and application of the biomaterial which have been developed by the authors for bioengineering scaffold production and 3D culturing.ΠΠ»ΡΠ³ΠΈΠ½Π°Ρ Π½Π°ΡΡΠΈΡ β ΠΎΠ΄ΠΈΠ½ ΠΈΠ· ΡΠ°ΡΡΠΎ ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΠΌΡΡ
Π² Π±ΠΈΠΎΠΌΠ΅Π΄ΠΈΡΠΈΠ½Π΅ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ². ΠΠ΄Π½Π°ΠΊΠΎ ΡΠΊΠ°ΡΡΠΎΠ»Π΄Ρ ΠΈ Π³ΠΈΠ΄ΡΠΎΠ³Π΅Π»ΠΈ Π½Π° Π΅Π³ΠΎ ΠΎΡΠ½ΠΎΠ²Π΅ ΠΎΠ±Π»Π°Π΄Π°ΡΡ ΠΊΡΠ°ΠΉΠ½Π΅ ΡΠ»Π°Π±ΡΠΌΠΈ Π°Π΄Π³Π΅Π·ΠΈΠ²Π½ΡΠΌΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π°ΠΌΠΈ ΠΈ Π½ΡΠΆΠ΄Π°ΡΡΡΡ Π² ΡΠΎΠ²Π΅ΡΡΠ΅Π½ΡΡΠ²ΠΎΠ²Π°Π½ΠΈΠΈ. ΠΠ°ΠΌΠΈ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ Π³ΠΈΠ΄ΡΠΎΠ³Π΅Π»ΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΆΠ΅Π»Π°ΡΠΈΠ½Π° ΠΈ Π°Π»ΡΠ³ΠΈΠ½Π°ΡΠ° Π½Π°ΡΡΠΈΡ, ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ½ΠΈΡΡΠΈΡΠΎΠΌ Π² Π³Π΅ΡΠ΅ΡΠΎΡΠ°Π·Π½ΡΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
Π² ΡΡΠ΅Π΄Π΅ ΡΡΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΏΠΈΡΡΠ°. ΠΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΉ ΡΠ°ΠΊΠΈΠΌ ΠΎΠ±ΡΠ°Π·ΠΎΠΌ Π°Π»ΡΠ³ΠΈΠ½Π°Ρ Π½Π°ΡΡΠΈΡ ΠΎΠ±Π»Π°Π΄Π°Π΅Ρ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½Π½ΡΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΠΊΠ°ΡΠ±ΠΎΠ½ΠΈΠ»ΡΠ½ΡΡ
, ΠΊΠ°ΡΠ±ΠΎΠΊΡΠΈΠ»ΡΠ½ΡΡ
ΠΈ Π½ΠΈΡΡΠΎΠ³ΡΡΠΏΠΏ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΠ΅ Π°Π²ΡΠΎΡΠ°ΠΌΠΈ ΠΈΠΎΠ½Π½ΠΎ ΠΈ ΠΈΠΎΠ½Π½ΠΎ-ΡΠ΅ΡΠΌΠ΅Π½ΡΠ°ΡΠΈΠ²Π½ΠΎ ΡΡΠΈΡΡΠ΅ Π³ΠΈΠ΄ΡΠΎΠ³Π΅Π»ΠΈ ΠΎΠ±Π»Π°Π΄Π°ΡΡ ΡΠ»ΡΡΡΠ΅Π½Π½ΡΠΌΠΈ Π°Π΄Π³Π΅Π·ΠΈΠ²Π½ΡΠΌΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π°ΠΌΠΈ ΠΈ Π½Π΅ ΠΏΡΠΎΡΠ²Π»ΡΡΡ ΡΠΈΡΠΎΡΠΎΠΊΡΠΈΡΠ½ΠΎΡΡΠΈ. ΠΡΠΎΠΌΠ΅ ΡΠΎΠ³ΠΎ, ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΡ Π°Π»ΡΠ³ΠΈΠ½Π°ΡΠ° Π½Π°ΡΡΠΈΡ ΠΎΠΊΠ°Π·ΡΠ²Π°Π΅Ρ ΠΏΠΎΠ»ΠΎΠΆΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ Π²Π»ΠΈΡΠ½ΠΈΠ΅ Π½Π° ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡ ΠΊΠ»Π΅ΡΠΎΠΊ ΠΏΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ ΠΊΠΎΠ½ΡΡΠΎΠ»ΡΠ½ΡΠΌΠΈ Π½Π΅Π°Π΄Π³Π΅Π·ΠΈΠ²Π½ΡΠΌΠΈ Π°Π»ΡΠ³ΠΈΠ½Π°Ρ-ΠΆΠ΅Π»Π°ΡΠΈΠ½ΠΎΠ²ΡΠΌΠΈ Π³ΠΈΠ΄ΡΠΎΠ³Π΅Π»ΡΠΌΠΈ. ΠΡΠΎ Π΄Π΅Π»Π°Π΅Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΡΠΌ Π΄Π°Π»ΡΠ½Π΅ΠΉΡΠ΅Π΅ ΡΠΎΠ²Π΅ΡΡΠ΅Π½ΡΡΠ²ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠ³ΠΎ Π±ΠΈΠΎΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π΄Π»Ρ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ Π±ΠΈΠΎΠΈΠ½ΠΆΠ΅Π½Π΅ΡΠ½ΡΡ
ΡΠΊΠ°ΡΡΠΎΠ»Π΄ΠΎΠ² ΠΈ 3D-ΠΊΡΠ»ΡΡΠΈΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΡ
Representability and Specht problem for G-graded algebras
Let W be an associative PI algebra over a field F of characteristic zero,
graded by a finite group G. Let id_{G}(W) denote the T-ideal of G-graded
identities of W. We prove: 1. {[G-graded PI equivalence]} There exists a field
extension K of F and a finite dimensional Z/2ZxG-graded algebra A over K such
that id_{G}(W)=id_{G}(A^{*}) where A^{*} is the Grassmann envelope of A. 2.
{[G-graded Specht problem]} The T-ideal id_{G}(W) is finitely generated as a
T-ideal. 3. {[G-graded PI-equivalence for affine algebras]} Let W be a G-graded
affine algebra over F. Then there exists a field extension K of F and a finite
dimensional algebra A over K such that id_{G}(W)=id_{G}(A).Comment: 37 page
Wall Materials on the Base of Burned Rocks
ΠΠΎΠΊΠ°Π·Π°Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΡ
Π±Π΅Π·ΠΎΠ±ΠΆΠΈΠ³ΠΎΠ²ΡΡ
ΡΡΠ΅Π½ΠΎΠ²ΡΡ
ΡΡΡΠΎΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π³ΠΎΡΠ΅Π»ΡΡ
ΠΏΠΎΡΠΎΠ΄ ΠΌΠ΅ΡΡΠΎΡΠΎΠΆΠ΄Π΅Π½ΠΈΠΉ ΠΡΠ°ΡΠ½ΠΎΡΡΡΠΊΠΎΠ³ΠΎ ΠΊΡΠ°Ρ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Ρ
ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΡΠΊΡΠΏΠ»ΡΠ°ΡΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ²ΠΎΠΉΡΡΠ² ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ².
Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠΏΠΎΡΠΎΠ±Ρ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΡ Π±Π΅Π·ΠΎΠ±ΠΆΠΈΠ³ΠΎΠ²ΡΡ
ΡΡΠ΅Π½ΠΎΠ²ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ²
Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π³ΠΎΡΠ΅Π»ΡΡ
ΠΏΠΎΡΠΎΠ΄. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΈΠ·Π΄Π΅Π»ΠΈΡ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π³ΠΎΡΠ΅Π»ΡΡ
ΠΏΠΎΡΠΎΠ΄ ΡΠΎΠΏΠΎΡΡΠ°Π²ΠΈΠΌΡ
ΠΏΠΎ ΠΏΡΠΎΡΠ½ΠΎΡΡΠΈ ΠΏΡΠΈ ΡΠΆΠ°ΡΠΈΠΈ Ρ ΠΊΠ΅ΡΠ°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠΌ ΠΊΠΈΡΠΏΠΈΡΠΎΠΌ (ΠΠΠ‘Π’ 530-2012), Π½ΠΎ ΠΈΠΌΠ΅ΡΡ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ
Π±ΠΎΠ»Π΅Π΅ Π²ΡΡΠΎΠΊΡΡ ΠΏΡΠΎΡΠ½ΠΎΡΡΡ ΠΏΡΠΈ ΠΈΠ·Π³ΠΈΠ±Π΅, ΡΠ΅ΠΌ Ρ ΠΊΠ΅ΡΠ°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΊΠΈΡΠΏΠΈΡΠ° Π΄Π°Π½Π½ΠΎΠΉ ΠΌΠ°ΡΠΊΠΈ. ΠΡΡΠ°ΠΆΠ΅Π½Ρ Π²ΠΎΠΏΡΠΎΡΡ ΠΏΡΠ΅ΠΎΠ΄ΠΎΠ»Π΅Π½ΠΈΡ Π½Π΅ΠΎΠ΄Π½ΠΎΡΠΎΠ΄Π½ΠΎΡΡΠΈ ΡΠΎΡΡΠ°Π²Π° ΠΈ ΡΡΡΠΎΠ΅Π½ΠΈΡ Π³ΠΎΡΠ΅Π»ΡΡ
ΠΏΠΎΡΠΎΠ΄ (Π³Π»ΠΈΠ΅ΠΆΠ΅ΠΉ). ΠΠ°Π½ Π°Π½Π°Π»ΠΈΠ·
ΡΠ²ΠΎΠΉΡΡΠ² Π±Π΅Π·ΠΎΠ±ΠΆΠΈΠ³ΠΎΠ²ΡΡ
ΡΡΠ΅Π½ΠΎΠ²ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π°The possibility of obtaining effective wall building materials on the basis of burut rocks of
the Krasnoyarsk Territory is shown. The results of studies of basic operational properties of
the materials developed are given. The technological methods of making bezobzhigovyh wall
materials on the basis of burnt rocks are considered it is found that the products on the basis
of burnt rocks are comparable with compression strength of ceramic bricks (GOST 530-2012),
but have a significantly higher flexural strength than the ceramic bricks of this mark. Issues of
overcoming the heterogeneity of the composition and structure of burned rocks are reflected. The
analysis of the properties of wall materials, depending on the production methods is presente