Zobrazeno 1 - 10
of 232
pro vyhledávání: '"A. Helmholdt"'
Autor:
C. Hilgert, P.D. Relf, N. Bumgarner, A. Helmholdt, S. Dorn, K. Dunker, N.D. Pinson, J. Flagler, C. Glen, J. Fry
Publikováno v:
Acta Horticulturae. :253-260
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ed9fc9518e55c7fde540f1b5fef3168
https://doi.org/10.17660/actahortic.2021.1330.30
https://doi.org/10.17660/actahortic.2021.1330.30
Autor:
Ting Helmholdt-Zhu, Holger Borcherding
Publikováno v:
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2900235aa4233e4cb527e4f37db9088f
https://doi.org/10.23919/epe21ecceeurope50061.2021.9570506
https://doi.org/10.23919/epe21ecceeurope50061.2021.9570506
Autor:
Borodi, Gheorghe, Bratu, Ioan, Dragan, Felicia, Peschar, René, Helmholdt, Robert B., Hernanz, Antonio
Publikováno v:
In Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2008 70(5):1041-1048
Publikováno v:
CAMAD
Optical wireless communication (OWC) or visible light communication (VLC) has recently experienced a significant growth in interest. Due to the vast bandwidth available in the unlicensed light spectrum, the ascent of LED-based lighting, inherent secu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd2be2092dff484558a1e2460c388bd4
https://doi.org/10.1109/camad.2017.8031636
https://doi.org/10.1109/camad.2017.8031636
Autor:
Helmholdt, Robert B.1 rbh@science.uva.nl, Sonneveld, Ed J.2, Vande Velde, Christophe M. L.2, Blockhuys, Frank2, Lenstra, Albert T. H.2, Geise, Herman J.2, Peschar, René1
Publikováno v:
Acta Crystallographica: Section B (Wiley-Blackwell). Oct2007, Vol. 63 Issue 5, p783-790. 8p. 3 Color Photographs, 4 Diagrams, 4 Charts, 2 Graphs.
Autor:
HELMHOLDT, W.
Publikováno v:
Central Asiatic Journal, 1968 Jan 01. 12(2), 96-100.
Externí odkaz:
https://www.jstor.org/stable/41926769
Autor:
HELMHOLDT, W.
Publikováno v:
Central Asiatic Journal, 1966 Jun 01. 11(2), 141-143.
Externí odkaz:
https://www.jstor.org/stable/41926971
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 86:1263-1274
The structure and conformation of allyldicyclopentadienyltitanium(III), (C5H5)2TiC3H5, and of some homologues substituted in the allyl ligand (mainly by methyl groups) have been investigated. Chemical arguments and infrared spectroscopy indicate that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60c386be0fdfedab6ec454d801055f84
https://doi.org/10.1002/recl.19670861113
https://doi.org/10.1002/recl.19670861113
Autor:
Frank Blockhuys, Robert B. Helmholdt, René Peschar, Ed J. Sonneveld, Christophe M. L. Vande Velde, Albert T. H. Lenstra, Herman J. Geise
Publikováno v:
Acta crystallographica: section B: structural science
The crystal structures of C4Br4S and C4Br4Se have been determined from X-ray powder diffraction data, using direct-space search techniques. In the case of C4Br4S two crystalline phases occur, a stable orthorhombic and a metastable monoclinic phase. F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a4bf095686f4f893b3bd60e85c3050d
https://doi.org/10.1107/s010876810703652x
https://doi.org/10.1107/s010876810703652x
Autor:
Helmholdt, Nick1 nickhelmholdt@macrospectra.com
Publikováno v:
Tech Directions. Sep2012, Vol. 72 Issue 2, p18-21. 4p. 8 Color Photographs.