Search Results - "Pivnenko, S"

Journal Article

Prevalence of antimicrobial resistance in Salmonella spp. strains isolated from human in Kharkiv Region, Ukraine

by Chumachenko, T Karlova, T Pivnenko, S Makhota, L Published in International journal of infectious diseases (01.02.2019)

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Journal Article

Coupling Reduction Between Dipole Antenna Elements by Using a Planar Meta-Surface

by Saenz, E Ederra, I Gonzalo, R Pivnenko, S Breinbjerg, O de Maagt, P Published in IEEE transactions on antennas and propagation (01.02.2009)

“...The mutual coupling between dipole antenna array elements using a planar meta-surface as superstrate is experimentally investigated. The meta-surface is based...”

Journal Article

Comparison of Antenna Measurement Facilities With the DTU-ESA 12 GHz Validation Standard Antenna Within the EU Antenna Centre of Excellence

by Pivnenko, S Pallesen, J.E Breinbjerg, O Castaner, M.S Almena, P.C Portas, C.M Sanmartin, J.L.B Romeu, J Blanch, S Gonzalez-Arbesu, J.M Sabatier, C Calderone, A Portier, G Eriksson, H Zackrisson, J Published in IEEE transactions on antennas and propagation (01.07.2009)

“...The primary objective of many antenna measurement facilities is to provide a specified high accuracy of the measured data. The validation of an antenna...”

Journal Article

The Immigration Triangle: Quebec, Canada, and the Rest of the World

by DeVoretz, Don J Pivnenko, S
edited by Akbari, Ather H
Published in Journal of international migration and integration (01.12.2008)

“...As with many other immigrant destination areas, Quebec has experienced difficulty in retaining its original set of newcomers. This paper addresses the issue of...”

Journal Article

Electrical performance verification methodology for large reflector antennas: based on the P-band SAR payload of the ESA BIOMASS candidate mission

by Pivnenko, S Kim, O S Nielsen, J M Breinbjerg, O Pontoppidan, K Østergaard, A Lin, C C Published in CEAS space journal (01.12.2013)

“...In this paper, an electrical performance verification methodology for large reflector antennas is proposed. The verification methodology was developed for the...”

Journal Article

Odd-order probe correction technique for spherical near-field antenna measurements

by T. A. Laitinen S. Pivnenko O. Breinbjerg Published in Radio science (02.06.2005)

“...In this paper, an odd‐order probe for spherical near‐field antenna measurements is defined. A probe correction technique for odd‐order probes is then...”

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Journal Article

Control of scattering from probes for near-field antenna measurements by use of skirt

by A Frandsen S Pivnenko O Breinbjerg Published in Electronics letters (04.03.2004)

“... A novel approach to reducing the multiple reflections between the test antenna and the probe in near-field antenna measurements, is proposed. Instead of...”

Journal Article

Phase radiation characteristics of an open-ended circular waveguide

by SHISHKOVA, A. V PIVNENKO, S. N KIM, O. S GOROBETS, N. N Published in IET microwaves, antennas & propagation (2007)

Conference Proceeding

Wideband Dual-Circularly Polarised Feed for Compact Antenna Test Ranges with Low Cross Polarisation

by Montesinos-Ortego, I Pivnenko, S Ruiz, A Published in 12th European Conference on Antennas and Propagation (EuCAP 2018) (20180000)

“...This paper presents the design of a wideband dual-circularly polarised feed system centred at the Ka band, based on an easy-to-build waveguide polariser. It...”

Journal Article

Relationship between the temperature dependence of the induced helical pitch and the anisometry of molecules of chiral dopants

by Shkolnikova, N I Kutulya, L A Pivnenko, N S Zubatyuk, R I Shishkin, O V Published in Crystallography reports (01.11.2005)

“...The regularities of changes in the temperature dependence of the helical pitch P and the parameter dP/dt are analyzed for induced cholesteric liquid-crystal...”

Journal Article

Superdirective Magnetic Dipole Array as a First-Order Probe for Spherical Near-Field Antenna Measurements

by Kim, O. S Pivnenko, S Breinbjerg, O Published in IEEE transactions on antennas and propagation (01.10.2012)

“...The theory as well as numerical and experimental results are presented for a superdirective array composed of closely spaced electrically small resonant...”

Journal Article

Theory and Practice of the FFT/Matrix Inversion Technique for Probe-Corrected Spherical Near-Field Antenna Measurements With High-Order Probes

by Laitinen, Tommi Pivnenko, Sergey Nielsen, Jeppe Majlund Breinbjerg, Olav Published in IEEE transactions on antennas and propagation (01.08.2010)

“...A complete antenna pattern characterization procedure for spherical near-field antenna measurements employing a high-order probe and a full probe correction is...”

Journal Article

New chiral spiro[2.5]octanones as products of methylenation of (3R, 6R)-2-arylidene-6-isopropyl-3-methylcyclohexanones with dimethylsulfoxonium methylide. Synthesis, stereochemistr...

by Gella, I M Pivnenko, N S Kutulya, L A Drushlyak, T G Kulikov, A Yu Novikova, N B Published in Russian chemical bulletin (01.10.2005)

“...Methylenation of (3R,6R)-2-(4-X-benzylidene)-6-isopropyl-3-methylcyclohexanones (X = F, Cl, Ph) with dimethylsulfoxonium methylide occurs stereoselectively to...”

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Journal Article

Probe Correction Technique for Symmetric Odd-Order Probes for Spherical Near-Field Antenna Measurements

by Laitinen, T Pivnenko, S Published in IEEE antennas and wireless propagation letters (20070000)

“...A probe correction technique for symmetric odd-order probes for spherical near-field antenna measurements is presented. The technique provides computational...”

Journal Article

Molecular conformation effects on mesomorphism and twisting ability of chiral cyclohexanones in mesophases

by Kutulya, L A Krivoshei, A I Pivnenko, N S Shkolnikova, N I Published in Journal of structural chemistry (01.05.2004)

“...The molecular conformations of 2,6-bis-(4-phenyl)benzylidene-3R-methyl-cyclohexanone and its mono-(4-phenyl)benzylidene methylcyclohexanone isomers were...”

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Journal Article

Iterative probe correction technique for spherical near-field antenna measurements

by Laitinen, T.A Pivnenko, S Breinbjerg, O Published in IEEE antennas and wireless propagation letters (20050000)

“...An iterative probe correction technique is presented to correct for the errors caused by the application of the traditional first-order probe correction for...”

Journal Article

X-Ray Investigation of Chiral β-Hydroxyketone Derived From (+)-Isomenthone

by Shishkina, S V Drushlyak, T G Kutulya, L A Pivnenko, N S Shishkin, O V Published in Journal of structural chemistry (01.09.2004)

“...X-ray analysis was carried out to study the molecular structure of β-hydroxyketone, which is one of the minor products of selective aldol condensation of...”

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Journal Article

Nonstationary Excitation of Flared Slot Metal-Dielectric Antennas

by Pivnenko, S. N Kolchigin, N. N Published in Telecommunications & radio engineering (1999-00-00)

Journal Article

Radiation of an Aperture Antenna Fed by Pulsed Signal Arbitrarily Distributed in Space and Time

by Butrym, A. Yu Kolchigin, N. N Pivnenko, S. N Published in Telecommunications & radio engineering (1999-00-00)

Journal Article

Stereochemistry of hydroxylation of some chiral spiro-[2,5]octan-4-ones

by Gella, I.M Drushlyak, T.G Pivnenko, N.S Zubatyuk, R.I Turov, A.V Konovalova, I.S Novikova, N.B Shishkin, O.V Published in Journal of molecular structure (18.07.2012)

“...► Dioxygen oxidize some spirooctan-4-ones in DMSO (DMF)/NaOH stereoselectively. ► Hydroxylation do not change the ratio of stereoisomers obtained in...”

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