Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Frank Duschek"'
Autor:
Christoph Kölbl, Manu Diedrich, Elias Ellingen, Frank Duschek, Moustafa Selim, Beate Berkelmann-Löhnertz
Publikováno v:
Frontiers in Horticulture, Vol 2 (2023)
IntroductionPathogenic fungi, such as Plasmopara viticola and Erysiphe necator, severely threaten the annual yield of grapes in both quantity and quality. In contrast to other crop production systems, fungicides are intensively applied in viticulture
Externí odkaz:
https://doaj.org/article/8e302756eb784d198eeb8fe714325582
Autor:
Lisa B. Dreier, Christoph Kölbl, Vincent Jeuk, Claudia Beleites, Anja Köhntopp, Frank Duschek
Publikováno v:
Sensors, Vol 22, Iss 20, p 7839 (2022)
The increasing number of terrorist attacks within the last decade has demonstrated that taking preventive protective measures is highly important. In addition to existing measures, automated detection systems for fast and reliable explosive detection
Externí odkaz:
https://doaj.org/article/3d2d10085dc840afa9ce384078987f50
Publikováno v:
Sensors, Vol 20, Iss 9, p 2524 (2020)
Laser-induced fluorescence (LIF) is a well-established technique for monitoring chemical processes and for the standoff detection of biological substances because of its simple technical implementation and high sensitivity. Frequently, standoff LIF s
Externí odkaz:
https://doaj.org/article/f3fe5c81071e462698f1633c527dda53
Publikováno v:
Electro-Optical and Infrared Systems: Technology and Applications XVIII and Electro-Optical Remote Sensing XV.
The operation of lasers in free space involves the potential risk of unintentionally exposing the human eye and skin to radiation. In addition to direct exposure, indirect scattered radiation of high-power lasers may pose a threat to operators, worki
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21b20e23322312c5efe517924db707fd
https://doi.org/10.1117/12.2599511
https://doi.org/10.1117/12.2599511
Publikováno v:
Optical Engineering. 60
Deep ultraviolet Raman spectroscopy measurements have been performed at the German Aerospace Center (DLR) with the aim of detecting traces (µg range) of explosive precursors. In this study a backscattering Raman system was set up and optimized to de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e66f24b0001788220b814ba9c8ec81df
https://doi.org/10.1117/1.oe.60.8.084108
https://doi.org/10.1117/1.oe.60.8.084108
Regulations of safety usage of hazardous substances impose companies to monitor their emissions. A novel approach determines the mass concentration of Cr(VI) in exhaust airflow based on angular light scattering combined with machine learning algorith
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::377765bf9c9dd7229e36d38ce2150093
https://doi.org/10.1364/ais.2021.jtu5a.25
https://doi.org/10.1364/ais.2021.jtu5a.25
Publikováno v:
Handbook of Laser Technology and Applications ISBN: 9781315310855
Since then, LIF has proven to provide excellent detection capabilities: samples can be excited with high spatial resolution given by the spot of the exciting laser beam allowing for imaging. The progress in understanding fluorescence processes and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b19f29ace9773e39b0698618b25ac9d
https://doi.org/10.1201/9781315310855-19
https://doi.org/10.1201/9781315310855-19
Publikováno v:
OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES).
High power laser radiation scattered outside of the beam axis can be a potential threat. A novel detection system based on angular light scattering can help to access the risk of scattering by atmospheric particles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7652925f57f5cd0c76722b5fd0fa2b8c
https://doi.org/10.1364/ais.2021.jtu5a.27
https://doi.org/10.1364/ais.2021.jtu5a.27
Ultraviolet Raman spectroscopy measurements have been taken at DLR in Lampoldshausen to detect NATO SET-237 standard samples of RDX. The main goal was to quantify the minimum requirements for an unambiguous identification in remote detection (60 cm d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f49c393f8d4e5870d9cbd0f79e7998c7
https://elib.dlr.de/141159/
https://elib.dlr.de/141159/
Publikováno v:
Environmental Effects on Light Propagation and Adaptive Systems II.
Absorption and scattering by gaseous species, aerosol particles and precipitation lead to atmospheric attenuation of laser radiation. High power laser propagation over long horizontal and/or vertical distances is significantly affected by atmospheric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe10b81adca761dcf243365d1d64d429
https://doi.org/10.1117/12.2532735
https://doi.org/10.1117/12.2532735