0000000000217809
AUTHOR
B. Werner
The novel HALO mini-DOAS instrument: inferring trace gas concentrations from airborne UV/visible limb spectroscopy under all skies using the scaling method
Abstract. We report on a novel six-channel optical spectrometer (further on called mini-DOAS instrument) for airborne nadir and limb measurements of atmospheric trace gases, liquid and solid water, and spectral radiances in the UV/vis and NIR spectral ranges. The spectrometer was developed for measurements from aboard the German High-Altitude and Long-Range (HALO) research aircraft during dedicated research missions. Here we report on the relevant instrumental details and the novel scaling method used to infer the mixing ratios of UV/vis absorbing trace gases from their absorption measured in limb geometry. The uncertainties of the scaling method are assessed in more detail than before for …
MicroSISAK: continuous liquid–liquid extractions of radionuclides at 0.2 mL/min
Abstract Continuous liquid–liquid extraction of short-lived radionuclides has traditionally been performed with the SISAK system consisting of static mixers and H-centrifuges for phase separation. SISAK operates at flow rates of typically 1 mL/s. Thus, it produces large volumes of radioactive liquid waste that is difficult to dispose of. Therefore, it has been aimed to develop and use a further miniaturised extraction unit based on microtechnology and precision engineering to reduce the flow rate by at least two orders of magnitude. The accordingly developed MicroSISAK device is a micro membrane extractor in which a micromixer element with 2 × 16 feed channels of 30 µm width followed by a 6…
Postersitzung 13: Inkontinenz — Harnabflußstörungen
Den guten Fruhresultaten von 80–90% stehen masige Langzeiterfolgsquoten von 50–70% nach 5 Jahren bei den bekannten urethralen Suspensionsmethoden entgegen. Aus der Schlusfolgerung, das primar befriedigende funktionelle Verhaltnisse vorliegen, ergibt sich der Ansatz, durch Optimierung bereits bestehender Verfahren bessere Langzeitergebnisse anzustreben.