89 research outputs found
Analysis of the Availability of Healthy Food to Residents of Megalopolis: Who Try to Keep to a Healthy Lifestyle
The aim of this work is to assess the state of the markets, healthy nutrition and healthy food delivery in Moscow in order to identify business opportunities for market entry of a new member-the company "GoodFoodFit". Within the designated goals there were set the following objectives: to conduct market analysis of healthy food delivery across Russia and Moscow; to identify the main trends and tendencies of markets; to analyze the key market participants of healthy food deliverers and identify their weaknesses and strengths; to determine the main consumers and their preferences; to identify the business opportunities to create oneβs own service, and finally to prepare financial justification of the project implementation. As a result of the analysis of the Russian market of healthy eating and the study of consumer preferences of people looking to maintain a healthy lifestyle and utilizing healthy food delivery service, it was revealed that the most promising for creating healthy food delivery service is the average price segment
Latest results of the Tunka Radio Extension (ISVHECRI2016)
The Tunka Radio Extension (Tunka-Rex) is an antenna array consisting of 63
antennas at the location of the TAIGA facility (Tunka Advanced Instrument for
cosmic ray physics and Gamma Astronomy) in Eastern Siberia, nearby Lake Baikal.
Tunka-Rex is triggered by the air-Cherenkov array Tunka-133 during clear and
moonless winter nights and by the scintillator array Tunka-Grande during the
remaining time. Tunka-Rex measures the radio emission from the same air-showers
as Tunka-133 and Tunka-Grande, but with a higher threshold of about 100 PeV.
During the first stages of its operation, Tunka-Rex has proven, that sparse
radio arrays can measure air-showers with an energy resolution of better than
15\% and the depth of the shower maximum with a resolution of better than 40
g/cm\textsuperscript{2}. To improve and interpret our measurements as well as
to study systematic uncertainties due to interaction models, we perform radio
simulations with CORSIKA and CoREAS. In this overview we present the setup of
Tunka-Rex, discuss the achieved results and the prospects of mass-composition
studies with radio arrays.Comment: proceedings of ISVHECRI2016 conferenc
The optical module of the Baikal deep underwater neutrino telescope
A deep underwater Cherenkov telescope has been operating since 1993 in stages
of growing size at 1.1 km depth in Lake Baikal. The key component of the
telescope is the Optical Module (OM) which houses the highly sensitive
phototube QUASAR-370. We describe design and parameters of the QUASAR-370, the
layout of the optical module, the front-end electronics and the calibration
procedures, and present selected results from the five-year operation
underwater. Also, future developments with respect to a telescope consisting
from several thousand OMs are discussed.Comment: 30 pages, 24 figure
ΠΠ·ΡΡΠ΅Π½ΠΈΠ΅ ΡΠΎΡΠ±ΡΠΈΠΈ ΡΠ΅ΡΠ΅Π±ΡΠ° ΠΈΠ· Π²ΠΎΠ΄Π½ΡΡ ΡΠ°ΡΡΠ²ΠΎΡΠΎΠ² ΡΠ²Π΅ΡΠ΄ΠΎΡΠ°Π·Π½ΠΎΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌ ΠΠΎΠ»ΠΈ(n-ΡΠΈΠΎΠΊΠ°ΡΠ±Π°ΠΌΠΎΠΈΠ»-3-Π°ΠΌΠΈΠ½ΠΎΠΏΡΠΎΠΏΠΈΠ»ΡΠΈΠ»ΡΠ΅ΡΠΊΠ²ΠΈΠΎΠΊΡΠ°Π½ΠΎΠΌ)
Sorption properties of poly(3-aminopropylsilsesquioxanes) modified with thiourea groups were studied to predict the possibility of using poly(n-thiocarbamoyl-3-aminopropylsilsesquioxanes) (TCPS) in separation and concentration techniques. The sorbents were synthesized by the sol-gel method followed by solid-phase modification using ammonium thiocyanate or thiosemicarbazide as modifiers. It was established that sorbents with the highest content of thiocarbamide functional groups (modified with ammonium thiocyanate) enabled quantitative and selective recovery of Ag (I) from strongly acidic solutions. The degree of Ag (I) recovery slightly decreases at pH5, which is associated with increasing competitive sorption of Cu (II), Ca (II), Mg (II), Mn (II) and Fe (III). The highest recovery of Ag (I) for TCPS-0.63 and TCPS-0.68 was achieved at pH ranging from 4 to 8 (degree of recovery was 55β68% (TCPS-0.63); 21β26% (TCPS-0.68 )); at the same time, there was a predominance of competitive sorption of Ca (II), Mg (II), Mn (II), and Fe (III). Based on the aforementioned, it can be concluded that the sorbents modified with ammonium thiocyanate are characterized by high concentration of attached thiocarbamide groups that make them suitable for the selective recovery of Ag (I) ions from multicomponent solutions at pH 1β2. Β Keyword: solid-phase extraction, selective recovery, separation of metals, concentration, functional materials, polysilsesquioxane, thiourea, thiocarbamide, silver, sol-gel method.Π‘ ΡΠ΅Π»ΡΡ ΠΏΡΠΎΠ³Π½ΠΎΠ·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠ»ΠΈ(n-ΡΠΈΠΎΠΊΠ°ΡΠ±Π°ΠΌΠΎΠΈΠ»-3-Π°ΠΌΠΈΠ½ΠΎΠΏΡΠΎΠΏΠΈΠ»ΡΠΈΠ»ΡΠ΅ΡΠΊΠ²ΠΈΠΎΠΊΡΠ°Π½ΠΎΠ²) (Π’ΠΠΠ‘) Π² ΠΌΠ΅ΡΠΎΠ΄Π°Ρ
ΡΠ°Π·Π΄Π΅Π»Π΅Π½ΠΈΡ ΠΈ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈΠ·ΡΡΠ΅Π½Ρ ΡΠΎΡΠ±ΡΠΈΠΎΠ½Π½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΠΏΠΎΠ»ΠΈ(3-Π°ΠΌΠΈΠ½ΠΎΠΏΡΠΎΠΏΠΈΠ»ΡΠΈΠ»ΡΠ΅ΡΠΊΠ²ΠΈΠΎΠΊΡΠ°Π½ΠΎΠ²), ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΠΈΠΎΠΌΠΎΡΠ΅Π²ΠΈΠ½Π½ΡΠΌΠΈ Π³ΡΡΠΏΠΏΠ°ΠΌΠΈ. Π‘ΠΎΡΠ±Π΅Π½ΡΡ ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Ρ Π·ΠΎΠ»Ρ-Π³Π΅Π»Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ Ρ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠΈΠΌ ΡΠ²Π΅ΡΠ΄ΠΎΡΠ°Π·Π½ΡΠΌ ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΎΡΠ° ΡΠΈΠΎΡΠΈΠ°Π½Π°ΡΠ° Π°ΠΌΠΌΠΎΠ½ΠΈΡ ΠΈΠ»ΠΈ ΡΠΈΠΎΡΠ΅ΠΌΠΈΠΊΠ°ΡΠ±Π°Π·ΠΈΠ΄Π°. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΡΠΎΡΠ±Π΅Π½ΡΡ Ρ Π½Π°ΠΈΠ±ΠΎΠ»ΡΡΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΡΡ
ΡΠΈΠΎΠΊΠ°ΡΠ±Π°ΠΌΠΈΠ΄Π½ΡΡ
Π³ΡΡΠΏΠΏ (ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΡΠΈΠΎΡΠΈΠ°Π½Π°ΡΠ° Π°ΠΌΠΌΠΎΠ½ΠΈΡ) ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎ ΠΈ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎ ΠΈΠ·Π²Π»Π΅ΠΊΠ°ΡΡ Ag (I) ΠΈΠ· ΡΠΈΠ»ΡΠ½ΠΎΠΊΠΈΡΠ»ΡΡ
ΡΠ°ΡΡΠ²ΠΎΡΠΎΠ². ΠΡΠΈ ΡΠ5 ΡΡΠ΅ΠΏΠ΅Π½Ρ ΠΈΠ·Π²Π»Π΅ΡΠ΅Π½ΠΈΡ Ag (I) Π½Π΅Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΠΏΠΎΠ½ΠΈΠΆΠ°Π΅ΡΡΡ, ΡΡΠΎ ΡΠ²ΡΠ·Π°Π½ΠΎ Ρ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠΎΡΠ±ΡΠΈΠΈ Π‘u (II), Ca (II), MgΒ (II), Mn (II) ΠΈ FeΒ (III). ΠΠ°ΠΈΠ±ΠΎΠ»ΡΡΠ΅Π΅ ΠΈΠ·Π²Π»Π΅ΡΠ΅Π½ΠΈΠ΅ Ag (I) Π΄Π»Ρ Π’ΠΠΠ‘-0.63 ΠΈ Π’ΠΠΠ‘-0.68 ΡΠ΅Π°Π»ΠΈΠ·ΡΠ΅ΡΡΡ ΠΏΡΠΈ ΡΠ ΠΎΡ 4 Π΄ΠΎ 8 (ΡΡΠ΅ΠΏΠ΅Π½Ρ ΠΈΠ·Π²Π»Π΅ΡΠ΅Π½ΠΈΡ 55β68Β % (Π’ΠΠΠ‘-0.63); 21β26Β % (Π’ΠΠΠ‘-0.68)) ΠΎΠ΄Π½ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎ Ρ ΡΡΠΈΠΌ Π½Π°Π±Π»ΡΠ΄Π°Π΅ΡΡΡ ΠΏΡΠ΅ΠΎΠ±Π»Π°Π΄Π°Π½ΠΈΠ΅ ΠΊΠΎΠ½ΠΊΡΡΠ΅Π½ΡΠ½ΠΎΠΉ ΡΠΎΡΠ±ΡΠΈΠΈ Ca (II), Mg (II), Mn (II) ΠΈ Fe (III). ΠΠ° ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ Π²ΡΡΠ΅ΡΠΊΠ°Π·Π°Π½Π½ΠΎΠ³ΠΎ ΠΌΠΎΠΆΠ½ΠΎ ΡΠ΄Π΅Π»Π°ΡΡ Π²ΡΠ²ΠΎΠ΄ ΠΎ ΡΠΎΠΌ, ΡΡΠΎ ΡΠΎΡΠ±Π΅Π½ΡΡ, ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ ΡΠΈΠΎΡΠΈΠΎΠ½Π°ΡΠ° Π°ΠΌΠΌΠΎΠ½ΠΈΡ, Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΡΡΡΡΡ Π²ΡΡΠΎΠΊΠΎΠΉ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠ΅ΠΉ ΠΏΡΠΈΠ²ΠΈΡΡΡ
ΡΠΈΠΎΠΊΠ°ΡΠ±Π°ΠΌΠΈΠ΄Π½ΡΡ
Π³ΡΡΠΏΠΏ, Π±Π»Π°Π³ΠΎΠ΄Π°ΡΡ ΡΠ΅ΠΌΡ ΠΎΠ½ΠΈ ΠΏΡΠΈΠ³ΠΎΠ΄Π½Ρ Π΄Π»Ρ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΠΈΠ·Π²Π»Π΅ΡΠ΅Π½ΠΈΡ AgΒ (I) ΠΈΠ· ΠΌΠ½ΠΎΠ³ΠΎΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠ½ΡΡ
ΡΠ°ΡΡΠ²ΠΎΡΠΎΠ² ΠΏΡΠΈ ΡΠ 1β2.Β ΠΠ»ΡΡΠ΅Π²ΡΠ΅ ΡΠ»ΠΎΠ²Π°: ΡΠ²Π΅ΡΠ΄ΠΎΡΠ°Π·Π½Π°Ρ ΡΠΊΡΡΡΠ°ΠΊΡΠΈΡ, ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠ΅ ΠΈΠ·Π²Π»Π΅ΡΠ΅Π½ΠΈΠ΅, ΡΠ°Π·Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΠΌΠ΅ΡΠ°Π»Π»ΠΎΠ², ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅, ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΡΠ΅ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ, ΠΏΠΎΠ»ΠΈΡΠΈΠ»ΡΠ΅ΡΠΊΠ²ΠΈΠΎΠΊΡΠ°Π½, ΡΠΈΠΎΠΌΠΎΡΠ΅Π²ΠΈΠ½Π°, ΡΠΈΠΎΠΊΠ°ΡΠ±Π°ΠΌΠΈΠ΄, ΡΠ΅ΡΠ΅Π±ΡΠΎ, Π·ΠΎΠ»Ρ-Π³Π΅Π»Ρ ΠΌΠ΅ΡΠΎ
Status of the Lake Baikal Experiment
We review the present status of the Baikal Underwater Neutrino Experiment and
report on neutrino events recorded with the detector stages NT-36 and NT-96.Comment: 5 pages, 4 PostScript figures, uses here.sty and mine.sty, submitted
to the Proc. of 5th Int. Workshop on Topics in Astroparticle and Underground
Physics (LNGS INFN, Assergi, September 7-11, 1997
Registration of atmospheric neutrinos with the Baikal neutrino telescope
We present first neutrino induced events observed with a deep underwater
neutrino telescope. Data from 70 days effective life time of the BAIKAL
prototype telescope NT-96 have been analyzed with two different methods. With
the standard track reconstruction method, 9 clear upward muon candidates have
been identified, in good agreement with 8.7 events expected from Monte Carlo
calculations for atmospheric neutrinos. The second analysis is tailored to
muons coming from close to the opposite zenith. It yields 4 events, compared to
3.5 from Monte Carlo expectations. From this we derive a 90 % upper flux limit
of 1.1 * 10^-13 cm^-2 sec^-1 for muons in excess of those expected from
atmospheric neutrinos with zenith angle > 150 degrees and energy > 10GeV.Comment: 20 pages, 11 figure
The Lake Baikal neutrino experiment
We rewiew the present status of the Baikal Neutrino Project and present the
results of a search for high energy neutrinos with the detector intermediate
stage NT-96.Comment: 3 pages, 2 figures, to appear in the Proceedings of Sixth
International Workshop on Topics in Astroparticle and Underground Physics
(TAUP99), September 6-10, 1999, Pais, Franc
The Baikal Deep Underwater Neutrino Experiment: Results, Status, Future
We review the present status of the Baikal Underwater Neutrino Experiment and
present results obtained with the various stages of the stepwise increasing
detector: NT-36 (1993-95), NT-72 (1995-96) and NT-96 (1996-97). Results cover
atmospheric muons, first clear neutrino events, search for neutrinos from WIMP
annihilation in the center of the Earth, search for magnetic monopoles, and --
far from astroparticle physics -- limnology.Comment: Talk given at the Int. School on Nuclear Physics, Erice, Sept.199
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