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Akademický článek

Experimental surgical protocol for continuous femoral venous access in the rat

Autor: Y. Goranova, I. M. Samnaliev, S. Nikolov, O. D. Zlatev, G. R. Kesov, V. D. Iordanov, V. N. Atanasov

Publikováno v: Bulgarian Journal of Veterinary Medicine, Vol 22, Iss 3, Pp 322-329 (2019)

Access to the circulatory system is essential for continuous monitoring and long-term experimental study. One of the commonest methods for venous access is femoral vein cannulation. The aim of the presented protocol was to elaborate a surgical model

Externí odkaz: https://doaj.org/article/f51989e2431e4202a34b6b80d4695cf1

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A Figure of Merit for Simultaneous-Multi-Beam Transmit Antenna Arrays

Autor: Anton N. Atanasov, Mark S. Oude Alink, Frank E. van Vliet

Publikováno v: 2022 IEEE International Symposium on Phased Array Systems & Technology (PAST)

We present a simple and useful figure of merit (FoM) with which to evaluate the performance of simultaneous-multi-beam (SMB) transmit (TX) antenna arrays. The FoM builds upon the power-aperture product and effective isotropic radiated power for singl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19cc4836332a6919892ef5346d3bf68f
https://doi.org/10.1109/past49659.2022.9974975

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The Load-Modulated linearizer: A technique for intermodulation cancellation in PA systems

Autor: Anton N. Atanasov, Wasam R. A. Mukhtar Ahmad, Mark S. Oude Alink, Frank E. Van Vliet

Publikováno v: 2022 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS), 174-177
STARTPAGE=174;ENDPAGE=177;TITLE=2022 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS)

—A novel application utilizing the load-modulated balanced amplifier (LMBA) principle to actively absorb individual out-of-band intermodulation components at the output of a power amplifier operating in high compression is presented. The system req

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf01e7f7676303c87e1ea45a559239c3
https://doi.org/10.1109/bcicts53451.2022.10051742

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A simple and efficient procedure for identifying the compressing stage in Two-Stage Amplifiers

Autor: Anton N. Atanasov, Waqam H. R. A. Mukhtar Ahmad, Mark S. Oude Alink, Frank E. Van Vliet

Publikováno v: 2021 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS)

We propose a fast and simple method to accurately determine the compressing stage in a two-stage amplifier system based on reverse intermodulation and hot S-parameter measurements. The method uses no specialized hardware and needs little reconfigurat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9703038e749aec804203e3b4750e507a
https://research.utwente.nl/en/publications/c680c1f2-b00f-4d51-aa04-68347fbe0261

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Experimental surgical protocol for continuous femoral venous access in the rat

Autor: S. N. Nikolov, V. D. Iordanov, O. D. Zlatev, I. M. Samnaliev, V. N. Atanasov, Y. A. Goranova, G. R. Kesov

Publikováno v: Bulgarian Journal of Veterinary Medicine, Vol 22, Iss 3, Pp 322-329 (2019)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2adde0b6ca02803a3746bbe5dfa620e

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Investigation to obtain complex relief MMC with metal matrix Al and Cu reinforcement phase

Autor: R. Radev, N. Atanasov, R. Yankova, D. Spasova

Publikováno v: Advances in Materials and Processing Technologies. 5:394-400

The main aim of the present paper is relevant with the research on the possibilities of obtaining of metal matrix composites (MMCs) with uniform and not changing during the process of creat...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3315aad98082f1a7af31127cad702a72
https://doi.org/10.1080/2374068x.2019.1616417

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Investigation of the suitability of fiber reinforced polymer matrix composites for facilities operating in marine environment

Autor: Yaroslav Argirov, Daniela Spasova, Tatyana Mechkarova, N Atanasov

This paper is related to the production and investigation of the structure, the mechanical and physicochemical properties of two kinds of fibre reinforced polymer matrix composites in order to assess their suitability as materials used in equipment o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4b1a8c2911d28add2d49f4a95731104

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Reverse Intermodulation in Multi-Tone Array Transmitters

Autor: Anton N. Atanasov, Mark S. Oude Alink, Frank E. van Vliet

Publikováno v: BCICTS
University of Twente Research Information (Pure Portal)
BCICTS 2020

The modern spectral, and thereby linearity, requirements force 5G phased-array transmitter systems to operate at reduced power efficiency, as they can no longer use voluminous filtering. To reduce the linearity requirements of the transmitter, we con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3194aa92ccec6a29905955a66dffd671
https://doi.org/10.1109/bcicts48439.2020.9392972

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