University College London

London, Greater London, United Kingdom

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Institute of Child Health
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Institute of Neurology
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Department of Computer Science
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Publication History View all

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    ABSTRACT: BIOGRAPHY Paul Groves is a Lecturer (academic faculty member) in GNSS, Navigation and Location Technology at University College London (UCL). He was a navigation systems researcher at QinetiQ from 1997 to 2009. He is interested in all aspects of navigation and positioning, including multi-sensor integrated navigation and robust GNSS under challenging reception conditions. He is an author of more than 30 technical publications, including the book, Principles of GNSS, Inertial and Multi-Sensor Integrated Navigation Systems (Artech House). He holds a BA/MA and a DPhil in physics from the University of Oxford. He is a Fellow of the Royal Institute of Navigation and chairs its R&D group. He is also an associate editor of Navigation: Journal of the ION. (p.groves@ucl.ac.uk) Ziyi Jiang is a Research Fellow at UCL, currently specialising in multipath mitigation research. He has recently submitted his PhD thesis on digital route model aided integrated satellite navigation and low-cost inertial sensors for high-performance positioning on the railways. He holds a BEng in measuring and control technology from Harbin Engineering University, China. Benjamin Skelton is completing a MSc in surveying at UCL, including a research project studying dual-polarization GNSS antennas. He holds a LLB in Law from the University of Leicester, UK. He appears in Figure 3.
    ION GNSS 2010; 11/2014
  • Source
    Applied Catalysis B Environmental 11/2014; s 160–161:582–588.
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    ABSTRACT: In this work the wavy interface of stratified oil-water flows was investigated using wire conductance probes. The experiments were carried out in a 38 mm ID acrylic pipe using water and oil (Exxsol D140 oil: ρo = 830 kgm-3, μo = 0.0055 kgm-1s-1) as test fluids. High-speed imaging revealed that almost two-dimensional interfacial waves develop at the inlet junction for input oil-to-water flow rate ratios different from one. Downstream the inlet section, however, the interface has a complex three dimensional structure with very small amplitude contributions. The structure of such interfaces can be properly investigated from the power spectrum of the conductance probe signal. A rigorous and detailed methodology is presented for estimating the power spectrum of the interface signal that is based on the Wiener – Khinchine theorem and makes extensive use of a Fast Fourier Transform (FFT) algorithm. Interface spectra were studied at two locations, close to the inlet of the test section and at 7 m downstream. The results showed that the waves at the inlet have a unique peak frequency of about 19 Hz and that, at the downstream location, this frequency is still present but has a smaller significance compared to that caused by the mechanical vibrations of the set up. This frequency was independent of the flowrates and could be a characteristic of the pair of the test fluids used rather than of the flow.
    International Journal of Multiphase Flow 10/2014;

Information

  • Address
    Gower Street, WC1E 6BT , London, Greater London, United Kingdom
  • Head of Institution
    Michael Arthur
  • Website
    http://www.ucl.ac.uk/
  • Phone
    +44 (0) 20 7679 2000
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