365 research outputs found
Laser synthesis of ruby for photo-conversion of solar spectrum
Ruby grains are synthesized by laser heating of the dry mixture of
AlO and CrO. Quasi-continuous radiation of a Nd:YAG laser was
used for this purpose with average power of 15 W. Synthesized ruby grains
demonstrate strong photo-luminescence in the vicinity of 700 nm. Synthesized
ruby grains were integrated into a matrix made of flouro-polymer. Luminescene
map acquired with the help of a photo-fluorimeter confirms efficient
photo-conversion of green-blue radiation of the synthesize ruby into red
region. Ruby grans can further be fragmented to smaller particles using the
technique of laser fragmentation in liquids
ΠΠ°Π΄Π³ΡΠΎΠ±ΠΈΡ Π½Π΅ΠΊΡΠΎΠΏΠΎΠ»Ρ ΠΠ°Π½Π³ΡΠΏΡΠΊΠΎΠΉ Π±Π°Π·ΠΈΠ»ΠΈΠΊΠΈ
The basilica located atop Mangup plateau in the south-western highland is one of the Christian monuments of the Crimea which research provided abundant archaeological materials. Especially interesting to historians are the data related to the investigations at the Christian cemetery which developed in different chronological periods within the basilica and around it. Supplementary excavations of the basilica (1967β2005) uncovered a series of carved tombstones, which featured the architectural properties different from early slab covering of the graves. The tombstones in question testify to the flourishing of the art of stone carving in Taurica in the fourteenth and fifteenth century. From their description and analysis, it is possible to draw the conclusions concerning the stone-carving art forms development in the mediaeval Crimea. It has been remarked that the Mangup stone-carvers considered the religion of the persons who lived there and paid especial attention to the decorative design of the monuments. In the making of the tombstones for the Christian cemetery at the basilica, the local stone-carvers applied artistic techniques taken from various styles (Byzantine, Seljuk, North Caucasus), which resulted in the appearance of specific βMangupβ style of architectural ornamentation. The local craftsmen re-worked decorative and carving techniques borrowed from foreign stone-carvers. The local products featured brevity and restrained manner.ΠΠ°Π·ΠΈΠ»ΠΈΠΊΠ°, ΡΠ°ΡΠΏΠΎΠ»ΠΎΠΆΠ΅Π½Π½Π°Ρ Π½Π° ΠΏΠ»Π°ΡΠΎ ΠΠ°Π½Π³ΡΠΏΠ° Π² ΡΠ³ΠΎ-Π·Π°ΠΏΠ°Π΄Π½ΠΎΠΌ Π½Π°Π³ΠΎΡΡΠ΅, Π²Ρ
ΠΎΠ΄ΠΈΡ Π² ΡΠΈΡΠ»ΠΎ Ρ
ΡΠΈΡΡΠΈΠ°Π½ΡΠΊΠΈΡ
ΠΏΠ°ΠΌΡΡΠ½ΠΈΠΊΠΎΠ² ΠΡΡΠΌΠ°, Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΊΠΎΡΠΎΡΡΡ
Π±ΡΠ» ΠΏΠΎΠ»ΡΡΠ΅Π½ Π±ΠΎΠ»ΡΡΠΎΠΉ ΠΎΠ±ΡΠ΅ΠΌ Π°ΡΡ
Π΅ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°. ΠΠ΅ΡΠΎΠΌΠ½Π΅Π½Π½ΡΠΉ ΠΈΠ½ΡΠ΅ΡΠ΅Ρ Π΄Π»Ρ ΠΈΡΡΠΎΡΠΈΠΊΠΎΠ² ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΡΡ Π΄Π°Π½Π½ΡΠ΅, ΡΠ²ΡΠ·Π°Π½Π½ΡΠ΅ Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠ°Π·Π½ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ Ρ
ΡΠΈΡΡΠΈΠ°Π½ΡΠΊΠΎΠ³ΠΎ Π½Π΅ΠΊΡΠΎΠΏΠΎΠ»Ρ, ΡΠΎΠ·Π΄Π°Π½Π½ΠΎΠ³ΠΎ Π½Π° ΠΏΡΠΎΡΡΡΠ°Π½ΡΡΠ²Π΅ Π±Π°Π·ΠΈΠ»ΠΈΠΊΠΈ ΠΈ Π²Π±Π»ΠΈΠ·ΠΈ Π½Π΅Π΅. ΠΡΠΈ Π΄ΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΈ Π±Π°Π·ΠΈΠ»ΠΈΠΊΠΈ (1967β2005) Π±ΡΠ» ΠΎΡΠΊΡΡΡ ΡΡΠ΄ ΡΠ΅Π·Π½ΡΡ
Π½Π°Π΄Π³ΡΠΎΠ±Π½ΡΡ
ΠΏΠ°ΠΌΡΡΠ½ΠΈΠΊΠΎΠ², ΠΎΡΠ»ΠΈΡΠ½ΡΡ
ΠΏΠΎ ΡΠ²ΠΎΠΈΠΌ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠ½ΡΠΌ ΠΏΡΠΈΠ·Π½Π°ΠΊΠ°ΠΌ ΠΎΡ ΡΠ°Π½Π½ΠΈΡ
ΠΏΠΎΠ³ΡΠ΅Π±Π°Π»ΡΠ½ΡΡ
ΠΏΠ»ΠΈΡΠΎΠ²ΡΡ
ΠΏΠΎΠΊΡΡΡΠΈΠΉ. ΠΡΠΈ Π½Π°Π΄Π³ΡΠΎΠ±ΠΈΡ ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΡΡΡ ΠΎ ΡΠ°ΡΡΠ²Π΅ΡΠ΅ ΠΈΡΠΊΡΡΡΡΠ²Π° ΠΊΠ°ΠΌΠ΅Π½Π½ΠΎΠΉ ΡΠ΅Π·ΡΠ±Ρ Π² Π’Π°Π²ΡΠΈΠΊΠ΅ XIVβXVΒ Π²Π². ΠΡ
ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ ΠΈ Π°Π½Π°Π»ΠΈΠ· ΠΏΠΎΠ·Π²ΠΎΠ»Ρ.Ρ ΡΠ΄Π΅Π»Π°ΡΡ Π²ΡΠ²ΠΎΠ΄Ρ ΠΎ ΡΠ°Π·Π²ΠΈΡΠΈΠΈ ΡΠΎΡΠΌ ΠΊΠ°ΠΌΠ½Π΅ΡΠ΅Π·Π½ΠΎΠ³ΠΎ ΠΈΡΠΊΡΡΡΡΠ²Π° ΡΡΠ΅Π΄Π½Π΅Π²Π΅ΠΊΠΎΠ²ΠΎΠ³ΠΎ ΠΡΡΠΌΠ°. ΠΡΠΌΠ΅ΡΠ°Π΅ΡΡΡ, ΡΡΠΎ ΠΊΠ°ΠΌΠ½Π΅ΡΠ΅ΡΡ ΠΠ°Π½Π³ΡΠΏΠ° ΡΡΠΈΡΡΠ²Π°Π»ΠΈ ΠΊΠΎΠ½ΡΠ΅ΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΡΡ ΠΏΡΠΈΠ½Π°Π΄Π»Π΅ΠΆΠ½ΠΎΡΡΡ ΠΆΠΈΠ²ΡΡΠΈΡ
Π·Π΄Π΅ΡΡ Π»ΡΠ΄Π΅ΠΉ ΠΈ ΡΠ΄Π΅Π»ΡΠ»ΠΈ ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠ΅ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ Π΄Π΅ΠΊΠΎΡΠ°ΡΠΈΠ²Π½ΠΎΠΌΡ ΠΎΡΠΎΡΠΌΠ»Π΅Π½ΠΈΡ ΠΏΠ°ΠΌΡΡΠ½ΠΈΠΊΠΎΠ². ΠΡΠΈ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΠΈ Π½Π°Π΄Π³ΡΠΎΠ±ΠΈΠΉ Ρ
ΡΠΈΡΡΠΈΠ°Π½ΡΠΊΠΎΠ³ΠΎ Π½Π΅ΠΊΡΠΎΠΏΠΎΠ»Ρ Π±Π°Π·ΠΈΠ»ΠΈΠΊΠΈ ΠΌΠ΅ΡΡΠ½ΡΠ΅ ΡΠ΅Π·ΡΠΈΠΊΠΈ ΠΏΠΎ ΠΊΠ°ΠΌΠ½Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π»ΠΈ Ρ
ΡΠ΄ΠΎΠΆΠ΅ΡΡΠ²Π΅Π½Π½ΡΠ΅ ΠΏΡΠΈΠ΅ΠΌΡ, ΠΏΠΎΡΠ΅ΡΠΏΠ½ΡΡΡΠ΅ ΠΈΠ· ΡΠ°Π·Π½ΡΡ
(Π²ΠΈΠ·Π°Π½ΡΠΈΠΉΡΠΊΠΈΠΉ, ΡΠ΅Π»ΡΠ΄ΠΆΡΠΊΡΠΊΠΈΠΉ, ΡΠ΅Π²Π΅ΡΠΎ-ΠΊΠ°Π²ΠΊΠ°Π·ΡΠΊΠΈΠΉ) ΡΡΠΈΠ»Π΅ΠΉ, Π±Π»Π°Π³ΠΎΠ΄Π°ΡΡ ΡΠ΅ΠΌΡ Π²ΠΎΠ·Π½ΠΈΠΊΠ»ΠΎ ΠΌΠ°Π½Π³ΡΠΏΡΠΊΠΎΠ΅ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠ½ΠΎΠΉ ΠΎΡΠ½Π°ΠΌΠ΅Π½ΡΠΈΠΊΠΈ. ΠΠ΅ΡΡΠ½ΡΠ΅ ΠΌΠ°ΡΡΠ΅ΡΠ° ΠΏΠ΅ΡΠ΅ΡΠ°Π±Π°ΡΡΠ²Π°Π»ΠΈ Π·Π°ΠΈΠΌΡΡΠ²ΠΎΠ²Π°Π½Π½ΡΠ΅ Ρ Π·Π°ΡΡΠ±Π΅ΠΆΠ½ΡΡ
ΠΊΠ°ΠΌΠ½Π΅ΡΠ΅Π·ΠΎΠ² ΠΏΡΠΈΠ΅ΠΌΡ ΡΠ΅Π·ΡΠ±Ρ ΠΈ Π΄Π΅ΠΊΠΎΡΠ°. ΠΡΠ½ΠΎΠ²Ρ ΠΌΠ΅ΡΡΠ½ΠΎΠ³ΠΎ ΡΡΠΈΠ»Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ»ΠΈ ΡΠ΄Π΅ΡΠΆΠ°Π½Π½ΠΎ ΡΠΊΡΠΏΡΠ΅ ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ, ΡΡΠΎ ΠΏΡΠΈΠ΄Π°Π²Π°Π»ΠΎ Π³ΠΎΡΠΎΠ²ΠΎΠΉ ΠΏΡΠΎΠ΄ΡΠΊΡΠΈΠΈ ΠΏΡΠ΅Π΄Π΅Π»ΡΠ½ΡΡ Π»Π°ΠΊΠΎΠ½ΠΈΡΠ½ΠΎΡΡΡ ΠΈ ΠΎΠ±ΡΠ°Π·Π½ΠΎΡΡΡ
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