Zobrazeno 1 - 10
of 237
pro vyhledávání: '"Christian Ullrich"'
Publikováno v:
Geosciences, Vol 12, Iss 12, p 436 (2022)
The reuse of vintage datasets which were acquired in the 20th century can pose challenges for modern geophysical modeling due to missing detailed preprocessing information, significant uncertainties, or lack of precise tracking, etc. Nevertheless, th
Externí odkaz:
https://doaj.org/article/12aa63df8cbd462eaa776f7f34598181
Autor:
Axel Rülke, Reinhard Falk, Andreas Engfeldt, Julian Glässel, Andreas Hellerschmied, Domenico Iacovone, Jakub Kostelecký, Vojtech Pálinkáš, Marvin Reich, Ludger Timmen, Christian Ullrich, Alessandro Valluzzi, Hartmut Wziontek, Barbara Zehetmaier
Geodetic observations on Earth accurate to better than a part per billion require a common reference for the same precision as described in the goals of the Global Geodetic Observing System. The International Gravity Reference System (IGRS) is propos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::297655c24108c419fc77e212a26f95de
https://doi.org/10.5194/egusphere-egu22-2964
https://doi.org/10.5194/egusphere-egu22-2964
Autor:
U Marti, Torsten Mayer-Guerr, Joachim Schwabe, Christian Ullrich, Gunter Liebsch, Andreas Hellerschmied
The D-A-CH geoid project was initiated in 2017 between the national mapping agencies of Germany (BKG), Austria (BEV) and Switzerland (swisstopo), as well as the regional authorities of the German federal states of Bavaria (LDBV) and Baden-Württember
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93e56b35bd67c21ad68a09bc2c3f427e
https://doi.org/10.5194/egusphere-egu21-7567
https://doi.org/10.5194/egusphere-egu21-7567
Autor:
Alexandra Sybertz, Benjamin Daniels, Andreas Schäffer, Richard Ottermanns, Christian Ullrich, Martina Roß-Nickoll, Tobias Frische, Susanne Bär, Björn Scholz-Starke
Publikováno v:
The Science of the total environment. 710
Multiple pesticide residues in the environment originate from combination products with two or more active substances, from tank mixtures prepared by the farmers and from subsequent applications of pesticides in spray series. Consequently, mixtures o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::626aa8c1a10671ade94d3a826429e8b6
https://pubmed.ncbi.nlm.nih.gov/31911253
https://pubmed.ncbi.nlm.nih.gov/31911253
Autor:
Thomas Bodmer, Christian Ullrich
Publikováno v:
Springer Reference Technik ISBN: 9783662529881
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb3feff422d3d686d039854413c18db1
https://doi.org/10.1007/978-3-662-52989-8_28
https://doi.org/10.1007/978-3-662-52989-8_28
Autor:
Christian Ullrich, Thomas Bodmer
Publikováno v:
Springer Reference Technik ISBN: 9783658134037
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2802563801275330b00aaa8255a7d6c
https://doi.org/10.1007/978-3-662-52991-1_28-1
https://doi.org/10.1007/978-3-662-52991-1_28-1
Autor:
Christian Ullrich
Publikováno v:
Business & Information Systems Engineering. 5:331-341
Real Options Theory is often applied to the valuation of IT investments. The application of Real Options Theory is generally accompanied by a monetary valuation of real options through option pricing models which in turn are based on restrictive assu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3754e3dcddee17c4d3ba701fe14ab064
https://doi.org/10.1007/s12599-013-0286-0
https://doi.org/10.1007/s12599-013-0286-0
Autor:
Christian Ullrich
Publikováno v:
WIRTSCHAFTSINFORMATIK. 55:333-345
Zur Bewertung von IT-Investitionen findet der Realoptionsansatz in der wissenschaftlichen Literatur haufig Anwendung. Die Anwendung des Realoptionsansatzes beinhaltet oftmals eine monetare Bewertung von Realoptionen anhand von Optionsbewertungsverfah
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edd24178c1fdc6bdc74b6fbc3e8fd865
https://doi.org/10.1007/s11576-013-0380-4
https://doi.org/10.1007/s11576-013-0380-4
Autor:
Tristan Farah, Tim Wilkins, Xuan Songbo, Jaakko Mäkinen, Derek van Westrum, Geoff Shannon, Cédric Champollion, René Reudink, Marc Eckl, Hu Hua, Christine Guerlin, Christian Rothleitner, Jan Krynski, H. Wilmes, Francesco Baccaro, Nicolas Dando, Franck Pereira Dos Santos, Ray Tracey, Ryan M. Billson, Jonas Ågren, Daniel McLaughlin, Marcin Sękowski, H. Baumann, Jakub Kostelecký, Christian Ullrich, Li Zhengyuan, Pedro Inacio, Stefaan Castelein, Gilbert Klein, Vojtech Pálinkáš, Tomasz Olszak, Wu Kang, Tan Hongbo, Nicolas Le Moigne, Alessandro Germak, Sébastien Merlet, E. Biolcati, Shen Chongyang, Domenico Iacovone, Reinhard Falk, Ludger Timmen, Andreas Engfeldt, Olivier Francis, A. Pachuta, Jyri Näränen, Tomas Volarik, Marc Seil, Sabrina Deville
Publikováno v:
Metrologia
Metrologia, IOP Publishing, 2013, 50 (3), pp.257-268. ⟨10.1088/0026-1394/50/3/257⟩
Metrologia, 2013, 50 (3), pp.257-268. ⟨10.1088/0026-1394/50/3/257⟩
Metrologia, IOP Publishing, 2013, 50 (3), pp.257-268. ⟨10.1088/0026-1394/50/3/257⟩
Metrologia, 2013, 50 (3), pp.257-268. ⟨10.1088/0026-1394/50/3/257⟩
We present the results of the third European Comparison of Absolute Gravimeters held in Walferdange, Grand Duchy of Luxembourg, in November 2011. Twenty-two gravimeters from both metrological and non-metrological institutes are compared. For the firs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9885d4c29c955bd67a7715ef1bf1cbf
https://doi.org/10.1088/0026-1394/50/3/257
https://doi.org/10.1088/0026-1394/50/3/257