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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Ultraschallsignalverarbeitung bei Korrelations- und Vortexverfahren zur Durchflussmessung

Filips, Christian. January 2003 (has links) (PDF)
Essen, Universiẗat, Diss., 2003.
2

Methode zur Volumenstrommessung und zur Viskositätskontrolle von Beschichtungsfluiden der grafischen Industrie

Neumann, Jann January 2009 (has links)
Zugl.: Darmstadt, Techn. Univ., Diss., 2009
3

Experimentelle und numerische Untersuchungen an Konfigurationen zur Erzeugung von Vorstörungen

Pereira, Gabriel Moniz January 2007 (has links)
Zugl.: Duisburg, Essen, Univ., Diss., 2007
4

Mikromechanisch realisierte PVDF-Ultraschallwandler-Arrays für Anwendungen in Flüssigkeiten

Daßler, Holger. Unknown Date (has links) (PDF)
Techn. Universiẗat, Diss., 2002--Chemnitz.
5

Selbstüberwachung differenzdruckbasierter Durchflussmessverfahren für Flüssigkeiten

Müller, Ralf. Unknown Date (has links)
Techn. Universiẗat, Diss., 2006--Darmstadt.
6

Experimentelle und numerische Untersuchungen an Konfigurationen zur Erzeugung von Vorstörungen /

Moniz Pereira, Gabriel. January 2008 (has links)
Universiẗat, Diss.--Duisburg-Essen, 2007.
7

Charakterisierung der elektromagnetischen Turbulenz im Torsatron TJ-K

Rahbarnia, Kian, January 2007 (has links)
Stuttgart, Univ., Diss., 2007.
8

Transferverfahren zur Validierung von Mengen- und Durchflussmesseinrichtungen mit Newton'schen Flüssigkeiten

Riedel, Jörg January 2009 (has links)
Zugl.: Magdeburg, Univ., Diss., 2009
9

Application of Coriolis Mass Flowmeters in bubbly or particulate two-phase flows

Zhu, Hao January 2008 (has links)
Zugl.: Erlangen, Nürnberg, Univ., Diss., 2008
10

Optimal processing of Doppler signals in OCT

Walther, Julia, Kirsten, Lars, Koch, Edmund 10 September 2019 (has links)
Besides structural imaging, OCT can be used to estimate axial velocities of the sample resolved in depth by Dopplerprocessing. In Fourier domain OCT (FD-OCT), this is accomplished by measuring the phase difference (i.e. phase shift) between timely separated A-scans at the same depth. In most cases, these data are disturbed by noise caused by intrinsic noise of the OCT system, specified by the SNR, and decorrelation noise caused by the transversal movement of the optical beam relative to the sample. Since the first use of Doppler methods in OCT, many methods to reduce the phase shift noise by averaging have been presented. While all these methods use a fixed set of consecutive A-scans, the best method, exhibiting no bias and having the smallest standard deviation, was questionable. Recently, Doppler processing methods depending on the mentioned noise sources and delivering the most likely phase shift and thereby axial velocity became available. The relation of these methods to previously known methods like the Kasai estimator, maximum likelihood estimator (MLE) and joint spectral and time domain OCT (jSTdOCT) will be discussed.

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