310 research outputs found
ΠΡΠ»ΡΡΡΡΠ½ΡΠ΅ Π°ΡΠΏΠ΅ΠΊΡΡ ΡΠΎΡΠΈΠ°Π»ΡΠ½ΡΡ ΡΠ΅ΡΠ΅ΠΉ
In my article I raised the topic of social networks, as they appeared in our lives. What has changed
since their appearance as they affected the lives of mankind
Π Π΅ΡΠ΅Π½ΠΈΠ΅ Π·Π°Π΄Π°Ρ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΏΡΠΈ Π°Π»ΠΌΠ°Π·Π½ΠΎ-ΠΈΡΠΊΡΠΎΠ²ΠΎΠΌ ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ ΡΠ²Π΅ΡΡ ΡΠ²ΡΡΠ΄ΡΡ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ²
ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ Π·Π°Π΄Π°ΡΠΈ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ, ΠΊΠΎΠ³Π΄Π° ΠΏΠΎ ΡΡΠ΅Π±ΡΠ΅ΠΌΠΎΠΉ ΡΠ΅ΡΡΠ΅ΠΆΠΎΠΌ ΡΠ΅ΡΠΎΡ
ΠΎΠ²Π°ΡΠΎΡΡΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΡΡΡΡ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠ΅ ΡΠΎΡΠ΅ΡΠ°Π½ΠΈΡ ΡΠ΅ΠΆΠΈΠΌΠΎΠ² ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ, ΠΊΠΎΡΠΎΡΡΠ΅ Π³Π°ΡΠ°Π½ΡΠΈΡΡΡΡ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎΠ³ΠΎ ΠΊΠ°ΡΠ΅ΡΡΠ²Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΠ²Π΅ΡΠ΅Π½Ρ ΠΏΡΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ΅ ΡΠ²Π΅ΡΡ
ΡΠ²ΡΡΠ΄ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ Π°Π»ΠΌΠ°Π·Π½ΠΎ-ΠΈΡΠΊΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ.Presented the solution to management tasks, when required by the drawing of roughness are determined by various combinations of processing modes, which guarantee obtaining the necessary surface quality. The study tested the processing of superhard materials by diamondβspark grinding
ΠΡΠΎΠ±Π»Π΅ΠΌΡ Π²Π΅Π΄Π΅Π½ΠΈΡ ΠΏΡΠ΅ΡΠ΅Π½Π·ΠΈΠΎΠ½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΡ ΠΏΠΎ ΡΠΎΠΏΠ»ΠΈΠ²Ρ Π΄Π»Ρ ΠΏΡΠ΅Π΄ΠΏΡΠΈΡΡΠΈΠΉ ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΠΊΠΈ
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΡΠΎΡΠ½ΠΎΡΡΠΈ ΠΈΠ·ΠΎΠ»ΡΡΠΈΠΎΠ½Π½ΡΡ ΡΠ΅Π·ΠΈΠ½
ΠΠ°Π΅ΡΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½Π°Ρ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΡ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ Π΄ΠΎ ΠΏΡΠΎΠ±ΠΎΡ ΡΠ΅Π·ΠΈΠ½ ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π° ΠΎΡ Π½Π°ΠΏΡΡΠΆΠ΅Π½Π½ΠΎΡΡΠΈ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΠΎΠ»Ρ
Study of drinking water activity towards the formation organoferric complexes
The article considers one of the methods of the study of drinking water activity towards the formation of organoferric complexes that helps to solve the problem of asiderotic anemia
Forming Young Bulges within Existing Disks: Statistical Evidence for External Drivers
Contrary to traditional models of galaxy formation, recent observations
suggest that some bulges form within preexisting disk galaxies. Such late-epoch
bulge formation within disks seems to be linked to disk gas inflow and central
star formation, caused by either internal secular processes or galaxy mergers
and interactions. We identify a population of galaxies likely to be
experiencing active bulge growth within disks, using the criterion that the
color within the half-light radius is bluer than the outer disk color. Such
blue-centered galaxies make up >10% of star-forming disk galaxies within the
Nearby Field Galaxy Survey, a broad survey designed to represent the natural
diversity of the low-z galaxy population over a wide range of luminosities and
environments. Blue-centered galaxies correlate at 99% confidence with
morphological peculiarities suggestive of minor mergers and interactions. From
this and other evidence, we argue that external drivers rather than internal
secular processes probably account for the majority of blue-centered galaxies.
We go on to discuss quantitative plausibility arguments indicating that
blue-centered evolutionary phases may represent an important mode of bulge
growth for most disk galaxies, leading to significant changes in bulge-to-disk
ratio without destroying disks. If this view is correct, bulge growth within
disks may be a natural consequence of the repeated galaxy mergers and
interactions inherent in hierarchical galaxy formation.Comment: 18 pages including 12 figures, AJ, accepte
Analizing of control system model of two-modular nuclear power plant with generation 4 reactors type HTR
ΠΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ Π°Π½Π°Π»ΡΠ· ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΡΡΠ½ΠΎΡ ΡΠ°ΡΡΠΈΠ½ΠΈ ΠΠΠ‘ Π· ΠΌΠΎΠ΄ΡΠ»ΡΠ½ΠΈΠΌ ΡΠ΅Π°ΠΊΡΠΎΡΠΎΠΌ ΡΠΈΠΏΡ HTR. ΠΠΈΡΠ²Π»Π΅Π½ΠΎ ΠΎΡΠ½ΠΎΠ²Π½Ρ ΠΏΡΠΎΠ±Π»Π΅ΠΌΠΈ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΌΠ°Π½Π΅Π²ΡΠ΅Π½ΠΎΡΡΡ ΡΠ° ΡΡΠ°Π±ΡΠ»ΡΠ½ΠΎΡ ΡΠΎΠ±ΠΎΡΠΈ ΠΠΠ‘ Π· ΠΌΠΎΠ΄ΡΠ»ΡΠ½ΠΈΠΌΠΈ ΡΠ΅Π°ΠΊΡΠΎΡΠ°ΠΌΠΈ. Π‘ΡΠ²ΠΎΡΠ΅Π½Π° Π΄ΠΈΠ½Π°ΠΌΡΡΠ½Π° ΠΌΠΎΠ΄Π΅Π»Ρ Π² ΡΠ΅ΡΠ΅Π΄ΠΎΠ²ΠΈΡΡ MATLAB/Simulink Π΄Π»Ρ ΠΠΠ‘ ΡΠΈΠΏΡ HTR-PM Π· Π΄Π²ΠΎΠΌΠ° ΡΠ΅Π°ΠΊΡΠΎΡΠ½ΠΈΠΌΠΈ ΠΌΠΎΠ΄ΡΠ»ΡΠΌΠΈ Π΄Π»Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΎΡΠ½ΠΎΠ²Π½ΠΈΡ
Π·Π°ΠΊΠΎΠ½ΡΠ² ΡΠΏΡΠ°Π²Π»ΡΠ½Π½Ρ ΡΠ΅Π°ΠΊΡΠΎΡΠ½ΠΈΠΌΠΈ ΠΌΠΎΠ΄ΡΠ»ΡΠΌΠΈ ΡΠ° ΠΊΠΎΠΎΡΠ΄ΠΈΠ½Π°ΡΡΡ ΠΌΠΎΠ΄ΡΠ»ΡΠ². ΠΡΡΠΈΠΌΠ°Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΈ ΠΌΠΎΠ΄Π΅Π»ΡΠ²Π°Π½Π½Ρ ΠΏΡΠ΄ΡΠ²Π΅ΡΠ΄ΠΆΡΡΡΡ ΡΡΠ°Π±ΡΠ»ΡΠ½Ρ ΡΠΎΠ±ΠΎΡΡ ΠΌΡΠ»ΡΡΠΈΠΌΠΎΠ΄Π°Π»ΡΠ½ΠΎΡ ΠΠΠ‘ ΠΏΡΠ΄ ΡΠ°Ρ ΠΏΠΎΠ΅ΡΠ°ΠΏΠ½ΠΎΠ³ΠΎ Π·Π½ΠΈΠΆΠ΅Π½Π½Ρ ΠΏΠΎΡΡΠΆΠ½ΠΎΡΡΡ ΠΏΠ΅ΡΡΠΎΠ³ΠΎ ΡΠ° Π΄ΡΡΠ³ΠΎΠ³ΠΎ ΠΌΠΎΠ΄ΡΠ»ΡΠ².The analysis of the technological part of the nuclear power plant with a modular reactor of the HTR type was carried out. The main problems of studying the mobility and stable operation of nuclear power plants with modular reactors are revealed. A dynamic model was created in the MATLAB/ Simulink environment for the HTR-PM type nuclear power plant with two reactor modules for studying the basic laws governing reactor modules and coordinating modules. The obtained simulation results confirm the stable operation of the multi-module nuclear power plant during the stage-by-stage reduction of the power of the first and second modules. The high-temperature gas-cooled reactor is a reliable concept for the fourth generation modular reactor, which can be considered as the basic option for further development of the nuclear energy sector of Ukraine
Ultra-deep Large Binocular Camera U-band Imaging of the GOODS-North Field: Depth vs. Resolution
We present a study of the trade-off between depth and resolution using a
large number of U-band imaging observations in the GOODS-North field
(Giavalisco et al. 2004) from the Large Binocular Camera (LBC) on the Large
Binocular Telescope (LBT). Having acquired over 30 hours of data (315 images
with 5-6 mins exposures), we generated multiple image mosaics, starting with
the best atmospheric seeing images (FWHM 0.8"), which constitute
10% of the total data set. For subsequent mosaics, we added in data with
larger seeing values until the final, deepest mosaic included all images with
FWHM 1.8" (94% of the total data set). From the mosaics, we
made object catalogs to compare the optimal-resolution, yet shallower image to
the lower-resolution but deeper image. We show that the number counts for both
images are 90% complete to . Fainter than
27, the object counts from the optimal-resolution image start to
drop-off dramatically (90% between = 27 and 28 mag), while the deepest
image with better surface-brightness sensitivity ( 32
mag arcsec) show a more gradual drop (10% between 27
and 28 mag). For the brightest galaxies within the GOODS-N field, structure and
clumpy features within the galaxies are more prominent in the
optimal-resolution image compared to the deeper mosaics. Finally, we find - for
220 brighter galaxies with 24 mag - only marginal
differences in total flux between the optimal-resolution and lower-resolution
light-profiles to 32 mag arcsec. In only 10% of
the cases are the total-flux differences larger than 0.5 mag. This helps
constrain how much flux can be missed from galaxy outskirts, which is important
for studies of the Extragalactic Background Light.Comment: 24 pages, 14 figures, submitted to PASP, comments welcom
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ΄Π΅Π»ΡΠ½ΠΎΠΉ ΡΠ»Π΅ΠΊΡΡΠΎΠΏΡΠΎΠ²ΠΎΠ΄Π½ΠΎΡΡΠΈ ΠΊΠΎΡΠΎΡΠΊΠΎΠ·Π°ΠΌΠΊΠ½ΡΡΠΎΠΉ ΠΎΠ±ΠΌΠΎΡΠΊΠΈ ΡΠΎΡΠΎΡΠ° Π°ΡΠΈΠ½Ρ ΡΠΎΠ½Π½ΡΡ Π΄Π²ΠΈΠ³Π°ΡΠ΅Π»Π΅ΠΉ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΏΠ»Π°Π½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°
Π Π°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΈ Ρ
ΠΈΠΌΡΠΎΡΡΠ°Π²Π° Π°Π»ΡΠΌΠΈΠ½ΠΈΡ ΠΏΡΠΈ Π·Π°Π»ΠΈΠ²ΠΊΠ΅, Π΄Π»ΠΈΠ½Ρ ΠΏΠ°ΠΊΠ΅ΡΠΎΠ² ΠΈ ΡΡΠΌΠΌΠ°ΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠΏΠ΅ΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΠΏΠ°Π·ΠΎΠ² ΡΠΎΡΠΎΡΠΎΠ² Π½Π° ΡΠ΄Π΅Π»ΡΠ½ΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΠΏΡΠΎΠ²ΠΎΠ΄Π½ΠΎΡΡΡ Π°Π»ΡΠΌΠΈΠ½ΠΈΡ ΠΊΠΎΡΠΎΡΠΊΠΎΠ·Π°ΠΌΠΊΠ½ΡΡΠΎΠΉ ΠΎΠ±ΠΌΠΎΡΠΊΠΈ ΡΠΎΡΠΎΡΠΎΠ² Π°ΡΠΈΠ½Ρ
ΡΠΎΠ½Π½ΡΡ
Π΄Π²ΠΈΠ³Π°ΡΠ΅Π»Π΅ΠΉ. Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΌΠ΅ΡΠΎΠ΄Π° ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²ΡΠ±ΡΠ°Π½ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎ-ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΠΉ. Π‘ΠΎΡΡΠ°Π²Π»Π΅Π½ ΡΠ΅Π½ΡΡΠ°Π»ΡΠ½ΡΠΉ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΎΠ½Π½ΡΠΉ ΡΠΎΡΠ°ΡΠ°Π±Π΅Π»ΡΠ½ΡΠΉ ΡΠ½ΠΈΡΠΎΡΠΌΠΏΠ»Π°Π½ Π²ΡΠΎΡΠΎΠ³ΠΎ ΠΏΠΎΡΡΠ΄ΠΊΠ°. ΠΠ»Ρ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΏΠ»Π°Π½Π° ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΎ 116 ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΡΠΎΡΠΎΡΠΎΠ² Π½Π° Π±Π°Π·Π΅ Π΄Π²ΠΈΠ³Π°ΡΠ΅Π»Π΅ΠΉ ΡΠ΅ΡΠΈΠΉ ΠΠ ΠΈ ΠΠ2. Π£Π΄Π΅Π»ΡΠ½Π°Ρ ΡΠ»Π΅ΠΊΡΡΠΎΠΏΡΠΎΠ²ΠΎΠ΄Π½ΠΎΡΡΡ ΠΈΠ·ΠΌΠ΅ΡΡΠ»Π°ΡΡ ΠΏΡΠΈΠ±ΠΎΡΠΎΠΌ ΡΠΈΠΏΠ° ΠΠ-1 Π½Π° Π²Π΅Π½ΡΠΈΠ»ΡΡΠΈΠΎΠ½Π½ΡΡ
ΠΊΡΡΠ»ΡΡΡ
, ΠΊΠΎΡΠΎΡΠΊΠΎΠ·Π°ΠΌΡΠΊΠ°ΡΡΠΈΡ
ΠΊΠΎΠ»ΡΡΠ°Ρ
ΠΈ Π½Π° ΠΈΠ·Π²Π»Π΅ΡΠ΅Π½Π½ΡΡ
ΠΈΠ· ΡΠΎΡΠΎΡΠΎΠ² ΡΡΠ΅ΡΠΆΠ½ΡΡ
ΠΎΠ±ΠΌΠΎΡΠΊΠΈ. ΠΡΠ΅Π³ΠΎ ΠΏΡΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½ΠΎ 4292 Π·Π°ΠΌΠ΅ΡΠ°. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
Π΄Π°Π½Π½ΡΡ
ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ ΡΠ΅Π³ΡΠ΅ΡΡΠΈΠΈ Π² Π²ΠΈΠ΄Π΅ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΎΠ² Π²ΡΠΎΡΠΎΠ³ΠΎ ΠΏΠΎΡΡΠ΄ΠΊΠ° ΠΎΡΠ΄Π΅Π»ΡΠ½ΠΎ Π΄Π»Ρ ΠΊΠΎΡΠΎΡΠΊΠΎΠ·Π°ΠΌΡΠΊΠ°ΡΡΠΈΡ
ΠΊΠΎΠ»Π΅Ρ ΠΈ ΡΡΠ΅ΡΠΆΠ½Π΅ΠΉ ΠΎΠ±ΠΌΠΎΡΠΊΠΈ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½Π° ΠΏΡΠΎΠ²Π΅ΡΠΊΠ° ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΉ Π½Π° Π°Π΄Π΅ΠΊΠ²Π°ΡΠ½ΠΎΡΡΡ ΠΏΠΎ F-ΠΊΡΠΈΡΠ΅ΡΠΈΡ Π€ΠΈΡΠ΅ΡΠ° ΠΈ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΎΠ² ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΉ Π½Π° Π·Π½Π°ΡΠΈΠΌΠΎΡΡΡ ΠΏΠΎ ΠΊΡΠΈΡΠ΅ΡΠΈΡ Π‘ΡΡΡΠ΄Π΅Π½ΡΠ°. Π£ΡΠ°Π²Π½Π΅Π½ΠΈΡ ΡΠ΅Π³ΡΠ΅ΡΡΠΈΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡ ΡΡΠ΅ΡΡΡ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠ²Π½ΠΎ-ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ°ΠΊΡΠΎΡΡ ΠΏΡΠΈ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ Π°ΡΠΈΠ½Ρ
ΡΠΎΠ½Π½ΡΡ
Π΄Π²ΠΈΠ³Π°ΡΠ΅Π»Π΅ΠΉ, Π°Π½Π°Π»ΠΎΠ³ΠΈΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π½ΡΠΌ, ΠΈ ΠΏΠΎΠ²ΡΡΠΈΡΡ ΡΠΎΡΠ½ΠΎΡΡΡ ΡΠ°ΡΡΠ΅ΡΠ° ΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ
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