Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Alexander Yurchenko"'
Autor:
Ruth Simmons, Ruslan Malyuta, Nelli Chentsova, Iryna Karnets, Gary Murphy, Antonia Medoeva, Yuri Kruglov, Alexander Yurchenko, Andrew Copas, Kholoud Porter, CASCADE Collaboration in EuroCoord
Publikováno v:
PLoS ONE, Vol 11, Iss 6, p e0157179 (2016)
OBJECTIVE:To estimate HIV incidence and highlight the characteristics of persons at greatest risk of HIV in the Ukraine capital, Kiev. METHOD:Residual samples from newly-diagnosed persons attending the Kiev City AIDS Centre were tested for evidence o
Externí odkaz:
https://doaj.org/article/2e50a5e34e4047daae3603d48c885ea0
Autor:
Ruth Simmons, Ruslan Malyuta, Nelli Chentsova, Antonia Medoeva, Yuri Kruglov, Alexander Yurchenko, Andrew Copas, Kholoud Porter, CASCADE Collaboration in EuroCoord
Publikováno v:
PLoS ONE, Vol 10, Iss 8, p e0137062 (2015)
ObjectiveData from Ukraine on risk factors for HIV acquisition are limited. We describe the characteristics of individuals testing for HIV in the main testing centres of the Ukrainian capital Kiev, including HIV risk factors, testing rates, and posit
Externí odkaz:
https://doaj.org/article/aa6033ef8f6f41c586c6a2de5456a4a2
Autor:
Sergey Britvin, Oleg Rubin, Pavel Belkin, Sergey Lisichkin, Igor Baklykov, Alexander Yurchenko
Publikováno v:
E3S Web of Conferences. 365:01004
The article provides the results of computational studies of the stress-strain state of reinforced concrete structures chambers of locks No. 15 and No. 16 of the Gorodetsky complex of hydraulic structures, performed on the basis of a finite element m
Publikováno v:
Acta Physica Polonica A. 127:132-134
The ultrasonic beam features in ultrasonic and acousto-optic devices have a great impact on their characteristics and need to be studied. In the current work, a conventional optical visualization technique was extended to include spatial ltration of
Autor:
Alexander Yurchenko
Publikováno v:
Islamology. 3:109-113
Examining Muslim descriptions of bright bolides after medieval chronicles, A.G. Yurchenko argues that rituals of jinn mourning related to them should be taken not for signs of popular superstitions but rather important religious rites whose function
Publikováno v:
2014 IEEE International Ultrasonics Symposium.
An acousto-optic technique exploiting spatial filtration of light diffraction orders is used to visualize ultrasonic pulses in a TeO 2 crystal, which is an ultrasonic sensor body. In the experiments, images of a sought shear and a spurious longitudin
Publikováno v:
2013 IEEE International Ultrasonics Symposium (IUS).
A novel ultrasonic sensor aimed specifically at detecting subsurface flaws is developed and investigated experimentally. The sensor exploits the phenomenon of frustrated total internal reflection and operates as a two-port device whose insertion loss
Autor:
V. I. Mikityuk, V. B. Bobkov, Alexander Yurchenko, A. A. Skulskii, V. V. Danilov, E. N. Smirnov
Publikováno v:
Radioelectronics and Communications Systems; Том 50, № 7 (2007); 399-400
Experimental research results of correlation processing of radio frequency hopping signals (FHSS radio signals) with the help of planar domain-acoustic processor are presented. This processor has linear spectrum of reference frequencies which are use
Autor:
Vitalij N. Kurashov, Volodymir P. Dan'ko, Alexander Yurchenko, Dmitrij V. Podanchuk, Andry V. Kovalenko
Publikováno v:
SPIE Proceedings.
In this paper we present the results of experimental investigation of wave-front distortion by amsotropic Te02 Bragg cellwith off-axial geometry. The measurements have been carried out using Shack-Hartmann wave-front sensor at visiblewavelength (O.63
Autor:
Alexander Yurchenko, Vladimir Moskalev
Publikováno v:
The Journal of the Acoustical Society of America. 103:3048-3049
Earlier unknown effects of an acousto‐optic interaction degeneracy in paratellurite have been studied. Its essence compared to described phenomena lies in the fact that a light beam can be diffracted twice by acoustic waves with different frequenci