30 research outputs found
Π₯Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΠΏΠΎΠ»ΡΡ ΡΡΠ΅ΠΊΠ»ΡΠ½Π½ΡΡ ΠΌΠΈΠΊΡΠΎΡΡΠ΅Ρ ΠΈ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Π»Π΅Π³ΠΊΠΈΡ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΡΡ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΎΠ½Π½ΡΡ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π° ΠΈ Π΄ΠΈΡΠΏΠ΅ΡΡΠ½ΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡ
Currently, to obtain light polymer composite materials with high strength characteristics, hollow microspheres of various nature (glass, quartz, polymer, etc.) are used as fillers. Hollow glass microspheres of different grades (manufactured by JSC Β«SIO StekloplastikΒ») were studied by various methods, the disperse structure was described using the generalized parameters model, the light dispersion-filled polymer composite materials (DFPCM) were classified according to the structural principle, generalized and reduced parameters were calculated, and the structure, compositions of light CMs on polymer matrices of various nature were designed.Π Π½Π°ΡΡΠΎΡΡΠ΅Π΅ Π²ΡΠ΅ΠΌΡ Π΄Π»Ρ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ Π»Π΅Π³ΠΊΠΈΡ
ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΎΠ½Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² (ΠΠ) Ρ Π²ΡΡΠΎΠΊΠΈΠΌΠΈ ΠΏΡΠΎΡΠ½ΠΎΡΡΠ½ΡΠΌΠΈ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ°ΠΌΠΈ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π½Π°ΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»Π΅ΠΉ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡ ΠΏΠΎΠ»ΡΠ΅ ΠΌΠΈΠΊΡΠΎΡΡΠ΅ΡΡ ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠΉ ΠΏΡΠΈΡΠΎΠ΄Ρ (ΡΡΠ΅ΠΊΠ»ΠΎ, ΠΊΠ²Π°ΡΡ, ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ ΠΈ Ρ. Π΄.). ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π»ΠΈ ΡΠΏΠ°ΠΊΠΎΠ²ΠΊΠΈ ΠΏΠΎΠ»ΡΡ
ΡΡΠ΅ΠΊΠ»ΡΠ½Π½ΡΡ
ΠΌΠΈΠΊΡΠΎΡΡΠ΅Ρ ΡΠ°Π·Π½ΡΡ
ΠΌΠ°ΡΠΎΠΊ (ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π° ΠΠ Β«ΠΠΠ Π‘ΡΠ΅ΠΊΠ»ΠΎΠΏΠ»Π°ΡΡΠΈΠΊΒ») ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌΠΈ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ, ΠΎΠΏΠΈΡΠ°Π½Π° Π΄ΠΈΡΠΏΠ΅ΡΡΠ½Π°Ρ ΡΡΡΡΠΊΡΡΡΠ° Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΎΠ±ΠΎΠ±ΡΠ΅Π½Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ², ΠΏΡΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½Π° ΠΊΠ»Π°ΡΡΠΈΡΠΈΠΊΠ°ΡΠΈΡ Π»Π΅Π³ΠΊΠΈΡ
Π΄ΠΈΡΠΏΠ΅ΡΡΠ½ΠΎ-Π½Π°ΠΏΠΎΠ»Π½Π΅Π½Π½ΡΡ
ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΎΠ½Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² (ΠΠΠΠΠ) ΠΏΠΎ ΡΡΡΡΠΊΡΡΡΠ½ΠΎΠΌΡ ΠΏΡΠΈΠ½ΡΠΈΠΏΡ, ΡΠ°ΡΡΡΠΈΡΠ°Π½Ρ ΠΎΠ±ΠΎΠ±ΡΠ΅Π½Π½ΡΠ΅ ΠΈ ΠΏΡΠΈΠ²Π΅Π΄Π΅Π½Π½ΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ, ΡΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½Ρ ΡΡΡΡΠΊΡΡΡΡ, ΡΠΎΡΡΠ°Π²Ρ Π»Π΅Π³ΠΊΠΈΡ
ΠΠ Π½Π° ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΡΡ
ΠΌΠ°ΡΡΠΈΡΠ°Ρ
ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠΉ ΠΏΡΠΈΡΠΎΠ΄Ρ
Advances in ITER-relevant Nb-Ti and NbSn strands and low-loss Nb-Ti strands in RF
The review of the main results of R&D directed on the enhancement of ITER relevant NbTi and NbSn strands performance recently carried out in Russia (the Bochvar Institute) are presented. For ITER PF type (NbTi) strands with Cu/non Cu ratio of 1.6 the attainment of ITER specified critical current density (Jc) β₯ 2900 A/mm2 (5 T, 4.2 K) has been shown. For Toroidal Field (TF) strands (NbSn) the influence of doping and layout peculiarities of the wires produced by bronze method on their current-carrying ability has been investigated. It was shown that with non-doped matrix and doped filaments Jc exceeds 800 A/mm2 (12 T, 4.2 K) while with the application of the doped bronze and nondoped filaments it exceeds 900 A/mm2. Internal-tin NbSn strand meeting the ITER TF specification requirements was also developed and fabricated. The results of testing of CICC samples in a SULTAN facility have shown that performance parameters are higher than ITER qualification requirements Low loss model fine filament NbTi strands, intended for operating in fields with a ramp rate from 1 up to 4 T/s, has been developed and manufactured. The use of commercial MN-5 alloy (Cu-5wt.%Ni) and the Cu- 0.5wt.%Mn alloy for matrix of strands are discussed. The critical current density higher than 2700 A/mm2 (5 T, 4.2 K was shown to be attainable
New records of Darevskia armeniaca (Méhely, 1909) and Darevskia valentini (Boettger, 1892) (Squamata, Sauria, Lacertidae) from Armenia and updated geographic distribution maps
During field survey in 2018, we recorded in Armenia the occurrences of the parthenogenetic lizard Darevskia armeniaca and its “paternal” bisexual species D. valentini. Based on our new data and records taken from publications and museums, we update the distribution maps of these species. The new records expand the geographical boundaries of sympatric habitats of these species and provide additional data for understanding the mechanisms of reticulate evolution and hybrid speciation