Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Zdeněk Němec"'
Publikováno v:
Perner’s Contacts, Vol 7, Iss 4 (2012)
This paper addresses localization using an ultrasonic receive array. The localization is realized in real-time. It is shown, that this method leads to good angle estimation accuracy in a low-cost indoor system.
Externí odkaz:
https://doaj.org/article/c3fa444f7cd34b13960bbeb14bada47c
Autor:
Zdeněk Němec, Jiří Blecha
Publikováno v:
Perner’s Contacts, Vol 6, Iss 4 (2011)
High speed high power semiconductor switch off circuits (SOS) attract an increasing interest due to their perspective application in various high power switching circuits in control, feeding or VHF systems. In this paper we concentrate on a short pul
Externí odkaz:
https://doaj.org/article/e6ffab56f6444ad1b08c977a2d63cbd8
Publikováno v:
Lecture Notes in Electrical Engineering ISBN: 9783030924331
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c102f2f5dd7995433871b5fea223fee7
https://doi.org/10.1007/978-3-030-92435-5_22
https://doi.org/10.1007/978-3-030-92435-5_22
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
Modification of the solar wind parameters at the bow shock (BS) and through the magnetosheath (MSH) is essential for the solar wind–magnetosphere interaction chain. The present study uses two approaches to determine the spatial profile of magnetic
Externí odkaz:
https://doaj.org/article/1fbbceb52f6d44da91c9aeb82c74521c
Autor:
Michael Alexander Harnik, Alina Scheidegger, Larissa Blättler, Zdenek Nemecek, Thomas C Sauter, Andreas Limacher, Florian Reisig, Martin grosse Holtforth, Konrad Streitberger
Publikováno v:
JMIR Formative Research, Vol 8, p e53154 (2024)
BackgroundThe COVID-19 pandemic has forced many health care providers to make changes in their treatment, with telemedicine being expanded on a large scale. An earlier study investigated the acceptance of telephone calls but did not record satisfacti
Externí odkaz:
https://doaj.org/article/5bd66176235c4b47bf98bfc7ac158aaf
Publikováno v:
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA).
This work proposes a number of decision rules for detecting unknown signals as well as the methodology of choosing preferable variants of decision rules subject to the totality of indices which characterize both detection quality and computational co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::406234a004bd96e3d3bed6ad788f1b06
https://doi.org/10.1109/radioelek.2017.7937604
https://doi.org/10.1109/radioelek.2017.7937604
Publikováno v:
Rail Transport—Systems Approach ISBN: 9783319515014
This paper studies the AC 25 kV 50 Hz traction power supply system, which is used, in particular, in the Czech Republic. Nowadays, railway operation is very complicated and sophisticated, both from the viewpoint of railway infrastructure and means of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6b4eaff89de7ea19dafc52e8a2a4fe9
https://doi.org/10.1007/978-3-319-51502-1_2
https://doi.org/10.1007/978-3-319-51502-1_2
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 175 (2024)
This study investigates short (millisecond) pulses detected by the Langmuir Probe and Waves instrument on board the Mars Atmosphere and Volatile Evolution spacecraft. We present a statistical analysis of 360,000 medium-frequency burst electric field
Externí odkaz:
https://doaj.org/article/ebd4b9befdb247b68900052e08b2e4c2
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 81 (2024)
A rarefaction region (RR) occurs at the trailing edge of the fast solar wind stream. It comes from an area of small longitudinal extent on the solar surface and exhibits a fine and complex structure. In our study, we did a superposed epoch analysis o
Externí odkaz:
https://doaj.org/article/f49257d450aa4a6dac492999e999233e
Autor:
Alexander Pitňa, Jana Šafránková, Zdeněk Němeček, Gilbert Pi, Gary Zank, Lingling Zhao, Laxman Adhikari, Masaru Nakanotani
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 161 (2024)
Interplanetary (IP) shocks are believed to play a significant role in both amplifying the background level of turbulent fluctuations and in heating the bulk solar wind (SW). This study investigates the thermodynamic properties downstream of IP shocks
Externí odkaz:
https://doaj.org/article/e7da1eb39e0447288ef9bd7e62a4b7eb