Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Ralf Koch"'
Autor:
Bianca Stapelfeldt, Alexander Scheuerlein, Christoph Tress, Ralf Koch, Johannes Tress, Gerald Kerth
Publikováno v:
Royal Society Open Science, Vol 9, Iss 2 (2022)
Bats are characterized by low reproductive rates in contrast with most of other small mammals. This makes their populations vulnerable when inclement environmental conditions such as cold and rainy weather impair the reproductive success of females.
Externí odkaz:
https://doaj.org/article/af22e7be0b934537a7fa5998b44fe7f6
Autor:
Bianca Stapelfeldt, Christoph Tress, Ralf Koch, Johannes Tress, Gerald Kerth, Alexander Scheuerlein
Publikováno v:
Oecologia. 201:853-861
Animals often respond to climate change with changes in morphology, e.g., shrinking body size with increasing temperatures, as expected by Bergmann’s rule. Because small body size can have fitness costs for individuals, this trend could threaten po
Autor:
Christian Mawrin, Ralf Koch, Natalie Waldt, I. Erol Sandalcioglu, Werner E. K. Braunsdorf, Jan‐Peter Warnke, Felix Goehre, Hans‐Jürgen Meisel, Christian Ewald, Sina Neyazi, Ulrich Schüller, Elmar Kirches
Publikováno v:
Brain pathology (Zurich, Switzerland). 32(2)
Meningiomas are the most frequent primary intracranial tumors. The considerable variety of histological subtypes has been expanded by the definition of molecular alterations, which can improve both diagnostic accuracy and determination of individual
Publikováno v:
Wasser, Energie und Umwelt ISBN: 9783658159214
Grosflachige okologische Fliesgewassersanierungen im Niedermoorbereich sind technologisch schwierig durchzufuhren und bedurfen wegen der zahlreichen geschutzten Lebensraume und Arten einer intensiven naturschutzfachlichen Betreuung. An einem natursch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c61de150db8e9ec3d236d7091224884c
https://doi.org/10.1007/978-3-658-15922-1_42
https://doi.org/10.1007/978-3-658-15922-1_42
Publikováno v:
Wasser und Abfall. 16:36-43
Autor:
Andreas Grohe, Haro Fritsche, Till Wallendorf, Bastian Kruschke, Axel Reich, Thomas Hagen, Ronny Steger, Holger Kern, Wolfgang Gries, Fabio Ferrario, Dennis Sanftleben, Ralf Koch
Publikováno v:
SPIE Proceedings.
The modular concept of DirectPhotonics laser systems is a big advantage regarding its manufacturability, serviceability as well as reproducibility. By sticking to identical base components an economic production allows to serve as many applications a
Autor:
Fabio Ferrario, Ralf Koch, Bastian Kruschke, Silke Pflueger, Ullrich Pahl, Andreas Grohe, Haro Fritsche, Holger Kern, Wolfgang Gries, Einar Ehm
Publikováno v:
High-Power Diode Laser Technology and Applications XIII.
For an economic production it is important to serve as many applications as possible while keeping the product variations minimal. We present our modular laser design, which is based on single emitters and various combining technics. In a first step
Autor:
Andreas Grohe, Haro Fritsche, Ulrich Pahl, Thomas Hagen, Bastian Kruschke, Ralf Koch, Wolfgang Gries, Holger Kern
Publikováno v:
SPIE Proceedings.
Laser diodes are efficient and compact devices operating in a wide range of wavelengths. Boosting power by beam combining while maintaining good beam quality has been a long-standing challenge. We discuss various approaches for beam combining with em
Autor:
Fabio Ferrario, Silke Pflueger, Stefanie Kohl, Ulrich Pahl, Florian Eibl, Andreas Grohe, Haro Fritsche, Wolfgang Gries, Michael Dobler, Ralf Koch, Bastian Kruschke
Publikováno v:
SPIE Proceedings.
The brightness of diode lasers is improving continuously and has recently started to approach the level of some solid state lasers. The main technology drivers over the last decade were improvements of the diode laser output power and divergence, enh
Autor:
Fabio Ferrario, Andreas Grohe, Ralf Koch, Haro Fritsche, Silke Pflueger, Wolfgang Gries, B. Krusche
Publikováno v:
SPIE Proceedings.
Generating high power laser radiation with diode lasers is commonly realized by geometrical stacking of diode bars, which results in high output power but poor beam parameter product (BPP). The accessible brightness in this approach is limited by the