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pro vyhledávání: '"Jean Francois David"'
Akademický článek
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Autor:
Jean-Francois David, Mathieu Coulis
Publikováno v:
ZooKeys, Vol 510, Pp 115-124 (2015)
Growth, development and life-cycle duration of the millipede Ommatoiulus sabulosus (f. aimatopodus) were studied in a Mediterranean shrubland of southern France and compared with previous data from northwest Europe. Changes in the proportions of stad
Externí odkaz:
https://doaj.org/article/ef09cf52e8cc4e7eb076c93544491512
Akademický článek
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Publikováno v:
ZooKeys, Vol 156, Iss 0, Pp 41-48 (2011)
The number of stadia during post-embryonic development is supposed to be fixed in most species of the millipede order Polydesmida. For the first time since 1928, additional moults were observed in two males of Polydesmus angustus Latzel, 1884 reared
Externí odkaz:
https://doaj.org/article/3c875753fb254c5cb6c1a53060708618
Autor:
Cadranel, Jean-François David, Zougmore, Honore, Hanslik, Bertrand, Ngele, Jean-René, Causse, Xavier, Ouzan, Denis, Thévenot, Thierry, Halfon, Philippe, Roulot, Dominique, Loustaud-Ratti, Veronique, Lemagoarou, Tristan
Publikováno v:
In Journal of Hepatology July 2022 77 Supplement 1:S270-S270
Publikováno v:
IEEE Transactions on Electron Devices. 63:4961-4967
A large-signal beam-wave interaction code for folded-waveguide traveling-wave tubes is presented. Formulation in frequency domain yields fast results of the steady state. The slow-wave structure is described by an equivalent circuit, while the electr
Autor:
Johanne Nahmani, Jean-Francois David, Patrick Schevin, Rémi Resmond, Sylvain Coq, Elena Kazakou, Jules Segrestin
Publikováno v:
Functional Ecology
Functional Ecology, Wiley, 2018, 32 (11), pp.2615-2624. ⟨10.1111/1365-2435.13205⟩
Functional Ecology, Wiley, 2018, 32 (11), pp.2615-2624. ⟨10.1111/1365-2435.13205⟩
The data associated with this paper are available from the Dryad Digital Repository https://doi.org/10.5061/dryad.s458b5n (Coq et al., 2018).; 1 - Clarifying the functional consequences of intraspecific trait variability in response to interacting tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::823a24a3f121d48b63ca21e439e6b98e
https://hal.archives-ouvertes.fr/hal-01964291
https://hal.archives-ouvertes.fr/hal-01964291
Publikováno v:
Frequenz. 69:3-10
The implications of different matching conditions for coupled-cavity traveling-wave tubes are considered. Using a small-signal approach the characteristic impedance for the coupled (hot) beam-wave system is derived. It is taken as reference impedance
Publikováno v:
IEEE Transactions on Electron Devices. 61:1715-1720
The cascade backward-wave amplifier (CBWA) has gained recent interest as amplifier at terahertz frequencies. The backward-wave regime permits the design of slow wave structures (SWSs) with longer period and geometrical dimensions, for a given frequen
Publikováno v:
2016 IEEE International Vacuum Electronics Conference (IVEC).
The importance of taking into account thermal electrons when designing the beam optics of a TWT is shown on the example of Ku-Band space TWT with a high beam efficiency.