2,507 research outputs found
Ecology-Economic Model Recreation Territory Monitoring: Crimea Case.
У роботі проведено оцінки щорічних туристичних потоків Криму та охарактеризовано збільшеніобсягизабрудненості природних ресурсів унаслідок використання рекреаційних ресурсів та підвищення антропогенного навантаження. Запропонованомодель, основним результатом якоїє обґрунтування потребиперебудови структури грошових потоків длязбереження екологічного стану АР Крим.
In this study was conducted the estimation of annual tourist flows in the Crimea region and it was evaluated the increasing of natural resources pollution due to the anthropogenic pressure. It was proposed a model due to results of which it needs to provide the cash flow restructuring for maintain the current conditions of Crimea’s environment.Роботу виконано на кафедрі економічної кібернетики НУБП
Update of the e^+e^-\to\pi^+\pi^- cross section measured by SND detector in the energy region 400<\sqrt{s}<1000 MeV
The corrected cross section of the e^+e^-\to\pi^+\pi^- process measured in
the SND experiment at the VEPP-2M e^+e^- collider is presented. The update is
necessary due to a flaw in the e^+e^-\to\pi^+\pi^- and e^+e^-\to\mu^+\mu^-
Monte Carlo events generators used previously in data analysis.Comment: 10 pages,7 figure
Experimental infection of H5N1 HPAI in BALB/c mice
This is an Open Access article distributed under the terms of the Creative Commons Attribution Licens
Study of the process e+e-\to \mu+\mu- in the energy region \sqrt{s}=980, 1040 -- 1380 MeV
The cross section of the process e+e-\to\mu+\mu- was measured in the SND
experiment at the VEPP-2M e+e- collider in the energy region \sqrt{s}=980, 1040
-- 1380 MeV. The event numbers of the process e+e-\to\mu+\mu- were normalized
to the integrated luminosity measured using e+e-\to e+e- and
e+e-\to\gamma\gamma processes. The ratio of the measured cross section to the
theoretically predicted value is 1.006\pm 0.007 \pm 0.016 and 1.005 \pm 0.007
\pm 0.018 in the first and second case respectively. Using results of the
measurements, the electromagnetic running coupling constant \alpha in the
energy region \sqrt{s}=1040 -- 1380 MeV was obtained = 134.1\pm 0.5
\pm 1.2 and this is in agreement with theoretical expectation.Comment: 29 pages, 23 figure
Reanalysis of the reaction cross section
In the experiment with the SND detector at the VEPP-2M collider
measuring the cross section in the energy range
the reanalysis of data is performed. The goal
is to improve the accuracy of the previous results by analysing ambiguities in
the approximation of energy dependence of the cross
section, which were not taken into account in our previous study. We report new
results on the approximation of the cross section based
on Vector Dominance Model under new model parameter assumptions.Comment: 3 pages, 4 table
Study of isobar electroproduction at VEPP-2M collider
Results from the Spherical Nonmagnetic Detector (SND) on
isobar electroproduction in the collisions of beam electrons (positrons) and
residual gas nuclei in the VEPP-2M collider are presented. On the
basis of the obtained data the expected counting rate of this process in future
high luminosity colliders (~-, -- and -factories)
was estimated.Comment: 7 pages LATEX and 3 figure
Review of experimental results from SND detector
The review of experimental results obtained with SND detector at VEPP-2M
collider in the energy region -- 1.38 GeV is given.
The presented results include the following items: studies of the light vector
mesons radiative decays, OZI-rule and G-parity suppressed -meson rare
decays, -meson parameters measurements, studies of
process dynamics, and mesons rare
decays, and mesons conversion decays, and study of the
annihilation into hadrons.Comment: 12 pages and 6 figures. Talk given at the IX International Conference
on Hadron Spectroskopy, Protvino, Russia, August 25 - September 1, 200
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