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21 results on '"Gerling, Thomas"'

8. Comparison of SIR-B SAR wave image spectra with wave model predictions: implications on the SAR modulation transfer function

Author

Monaldo, Frank M., Gerling, Thomas G., and Tilley, David G.

Subjects
Synthetic aperture radar -- Image quality, Radar systems -- Research, Ocean waves -- Research, Business, Earth sciences, Electronics and electrical industries
Abstract

During the Spaceborne Imaging Radar (SIR-B) mission in October 1984, the on-board synthetic aperture radar (SAR) acquired data in the vicinity of Hurricane Josephine. In this paper, ocean wave spectra computed from the SAR imagery are compared with Ocean Data Gathering Project (ODGP) model forecasts. Because the apparent propagation direction of the dominant wave system rotated over 90 degrees along the pass, the data set affords a unique opportunity to observe the same wave system as imaged by different SAR imaging mechanisms. It is shown here that, for the SIR-B geometry, the wave-numbers and propagation directions extracted from the wave spectra are not strongly dependent upon the exact nature of the SAR imaging mechanisms. However, the estimation of ocean significant wave height (SWH) requires accurate knowledge of such mechanisms. The spatial variation of SWH as estimated from SAR derived wave spectra and ODGP model spectra compare most favorably when the phase of the hydrodynamic portion of the SAR modulation transfer function is approximately 90 degrees past the long wave crest.

Published
1993

9. Custom-Size, Functional, and Durable DNA Origami with Design-Specific Scaffolds

Author

Engelhardt, Floris A. S., primary, Praetorius, Florian, additional, Wachauf, Christian H., additional, Brüggenthies, Gereon, additional, Kohler, Fabian, additional, Kick, Benjamin, additional, Kadletz, Karoline L., additional, Pham, Phuong Nhi, additional, Behler, Karl L., additional, Gerling, Thomas, additional, and Dietz, Hendrik, additional

Published
2019
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13. Konstruktion und Charakterisierung eines nanomechanischen Zwei-Zustands DNA-Aktuator

Author

Gerling, Thomas, Dietz, Hendrik (Prof. Dr.), Pfeiffer, Franz (Prof. Dr.), and Lipfert, Jan (Prof. Dr.)

Subjects
Physik, ddc:530, Technik, ddc:600
Abstract

This thesis presents the rational design and experimental characterization of a synthetic nanomechanical two-state DNA-actuator. The actuator exists in dynamic conformational equilibrium between an open and a closed state. By using ensemble and single-molecule methods, it will be demonstrated that the conformational equilibrium can be finely controlled by global parameters such as cation concentration or temperature and by an allosteric mechanism based on strand-displacement reactions. In dieser Arbeit wird die rationale Konstruktion und experimentelle Charakterisierung eines synthetischen, nanomechanischen Zwei-Zustands DNA-Aktuators präsentiert. Der Aktuator steht in einem dynamischen Gleichgewischt zwischen einer offenen und einer geschlossenen Konformation. Mithilfe von Ensemble- und Einzelmolekül-Methoden wird gezeigt, dass durch globale Parameter wie die Konzentration von Kationen oder die Temperatur sowie durch einen allosterischen Mechanismus der auf Strangverdrängungsreaktionen basiert, die Lage des Gleichgewichts kontolliert werden kann.

Published
2016

14. How We Make DNA Origami

Author

Wagenbauer, Klaus F., primary, Engelhardt, Floris A. S., additional, Stahl, Evi, additional, Hechtl, Vera K., additional, Stömmer, Pierre, additional, Seebacher, Fabian, additional, Meregalli, Letizia, additional, Ketterer, Philip, additional, Gerling, Thomas, additional, and Dietz, Hendrik, additional

Published
2017
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16. Design and characterization of a nanomechanical two-state DNA-actuator

Author

Dietz, Hendrik (Prof. Dr.), Pfeiffer, Franz (Prof. Dr.), Lipfert, Jan (Prof. Dr.), Gerling, Thomas, Dietz, Hendrik (Prof. Dr.), Pfeiffer, Franz (Prof. Dr.), Lipfert, Jan (Prof. Dr.), and Gerling, Thomas

Abstract

This thesis presents the rational design and experimental characterization of a synthetic nanomechanical two-state DNA-actuator. The actuator exists in dynamic conformational equilibrium between an open and a closed state. By using ensemble and single-molecule methods, it will be demonstrated that the conformational equilibrium can be finely controlled by global parameters such as cation concentration or temperature and by an allosteric mechanism based on strand-displacement reactions., In dieser Arbeit wird die rationale Konstruktion und experimentelle Charakterisierung eines synthetischen, nanomechanischen Zwei-Zustands DNA-Aktuators präsentiert. Der Aktuator steht in einem dynamischen Gleichgewischt zwischen einer offenen und einer geschlossenen Konformation. Mithilfe von Ensemble- und Einzelmolekül-Methoden wird gezeigt, dass durch globale Parameter wie die Konzentration von Kationen oder die Temperatur sowie durch einen allosterischen Mechanismus der auf Strangverdrängungsreaktionen basiert, die Lage des Gleichgewichts kontolliert werden kann.

Published
2016

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