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Rachid Maads bilde

Rachid Maad

Senioringeniør
  • E-postRachid.Maad@uib.no
  • Telefon+47 55 58 27 63
  • Besøksadresse
    Allegt. 55
  • Postadresse
    Postboks 7803
    5020 BERGEN
  • Multimodal Two-Phase Flow Measurement Using Dual Plane ECT and GRT. Stavland, Stian Husevik; Arellano Prieto, Yessica Alexandra; Hunt, Andy; Maad, Rachid; Hjertaker, Bjørn Tore. 2020. IEEE Transactions on Instrumentation and Measurement.

  • Multimodal analysis of gas-oil intermittent structures in co-current horizontal flow. Stavland, Stian Husevik; Arellano Prieto, Yessica Alexandra; Hunt, Andy; Maad, Rachid; Hjertaker, Bjørn Tore. 2020. IEEE International Instrumentation and Measurement Technology Conference.

  • Gas fraction measurements using single and dual beam gamma-densitometry for two phase gas-liquid pipe flow. Stavland, Stian Husevik; Sætre, Camilla; Hjertaker, Bjørn Tore; Tjugum, Stein-Arild; Hallanger, Anders; Maad, Rachid. 2019.  IEEE Instrumentation and Measurement Technology Conference. Proceedings. 1-6.

  • Characterization of multiphase flow blind-T mixing using high speed gamma-ray tomometry, B. T. Hjertaker, S.A. Tjugum, A. Hallanger, R. Maad, 2018, Flow Measurement and Instrumentation, Flow Measurement and Instrumentation 62 (2018) 205–212.

  • Investigation of venture constriction characteristics in multiphase flow using high speed gamma-ray tomography, S. H. Stavland, S-A. Tjugum , A. Hallanger , R. Maad  and B. T. Hjertaker, 9th World Congress on Industrial Process Tomography, 2018, Bath, England.

  • Non-linearity in monochromatic transmission tomography, W. Lionheart1, B. T. Hjertaker, R. Maad, I. Meric, S. B. Coban, and G. A. Johansen http://arxiv.org/pdf/1705.05160

  • Investigation of multiphase flow blind-T mixing effectiveness using high speed gamma-ray tomometry, R. Maad, S. A. Tjugum, A. Hallanger, B. T. Hjertaker, 2016, 8th World Congress on Industrial Process Tomography, Brazil.

  • Non-Destructive Monitoring of Multiphase Hydrocarbon Flow by High-Speed Gamma-Ray Tomography, G. A. Johansen , I. MERIC , R. Maad , E. M. Bruvik, B. T.Hjertaker , C. Sætre, 2014, 11th European Conference on Non-Destructive Testing (ECNDT 2014).

  • The particle system iterative reconstruction technique in a high speed Gamma-ray Tomograph, S. Melo, Í. Moreira, C. Dantas, G. A. Johansen, B. T. Hjertaker and R. Maad, 6th International Symposium on Process Tomography, 2012, Cape Town, South Africa.

  • Industrial applications of tomographic gamma-ray methods, G. A. Johansen, B. T. Hjertaker, S. A. Tjugum, E. M .Bruvik, R. Maad, C. Sætre, and R. Thorn, 6th International Symposium on Process Tomography, 2012, Cape Town, South Africa.

  • Inherent dual mode single energy gamma-ray tomography, B. T. Hjertaker, R. Maad and G. A. Johansen, 6th International Symposium on Process Tomography, 2012, Cape Town, South Africa.

  • Dual-mode capacitance and gamma-ray tomography using the Landweber reconstruction algorithm, B. T. Hjertaker, R. Maad and G. A. Johansen, Measurement science and technology 22 (2011), 104002.

  • Monte Carlo simulation for multi-channel gamma-ray process tomography, V Mosorov, G A Johansen, R Maad and D Sankowski, Flow Measurement and Instrumentation 22 (2011) 055502.

  • Dynamic characterization of high speed gamma-ray tomography, R. Maad, B. T. Hjertaker, G. A. Johansen and Ø. Olsen, Flow Measurement and Instrumentation 21 (2010) 538–545.

  • Experimental analysis of high-speed gamma-ray tomography performance, R. Maad and G. A. Johansen, Measurement science and technology 19 (2008), 085502.

  • Semi-empirical scatter correction model for high speed gamma-ray tomography, R. Maad, B. T. Hjertaker and G. A. Johansen, Measurement science and technology 19 (2008), 094016.

  • A data acquisition and control system for high-speed gamma-ray tomography, B. T. Hjertaker, R. Maad, E. Schuster, O. A. Almås and G. A. Johansen, Measurement science and technology 19 (2008), 094012.

  • Convergence acceleration of the alternating minimization algorithm for high-speed gamma-ray tomography, R. Maad and G. A. Johansen, 5th International Symposium on Process Tomography, 2008, Zakopane, Poland.

  • Semi-empirical scatter correction models for high speed gamma-ray tomography, R. Maad, B. T. Hjertaker and G. A. Johansen, Proceedings of the 5th World Congress on Industrial Process Tomography (ISBN 978 0 85316 265 0), 2007, Bergen, Norway.

  • A Comparing Analysis of Image Visualisation Accuracy of Electrical Capacitance Tomography and Gamma Tomography, R. Maad, D. Sankowski, K. Grudzien, R. Wajman, V. Mosorov and G. A. Johansen, Proceedings of the 5th  World Congress on Industrial Process Tomography (ISBN 978 0 85316 265 0), 2007, Bergen, Norway.

  • Experimental test of a novel reconstruction approach based on irregular grid for high speed gamma-ray tomography, V. Mosorov, R. Maad, S.Lewndowski, G. A. Johansen and D. Sankowski, Proceedings of the 5th World Congress on Industrial Process Tomography (ISBN 978 0 85316 265 0), 2007, Bergen, Norway.

  • USB-based data acquisition and control system for high speed gamma-ray tomography, B. T. Hjertaker, R. Maad, O. A. Almås and G. A. Johansen, Proceedings of the 5th World Congress on Industrial Process Tomography (ISBN 978 0 85316 265 0), 2007, Bergen, Norway.

  • Experimental noise analysis of reconstructed pixel values in high-speed gamma-ray tomography. R. Maad and G. A. Johansen, 4th International Symposium on Process Tomography, 2006, Warsaw, Poland.

  • First experimental results of multiphase hydrocarbon flow monitoring using dual modality gamma-Ray tomography and high frequency magnetic field sensors, B. T. Hjertaker, G. A. Johansen, E. Cimpan, R. Maad, and E. A. Hammer, 4th World Congress on Industrial Process Tomography, 2005, Aizu, Japan.

  • Automatic Weight Matrix Generation for Gamma-ray Tomography, R. Maad and G. A. Johansen, 3rd World Congress on Industrial Process Tomography, 2003, Banff, Canada.

 

Vitenskapelig artikkel
  • Vis forfatter(e) 2020. Multimodal Two-Phase Flow Measurement Using Dual Plane ECT and GRT. IEEE Transactions on Instrumentation and Measurement.
  • Vis forfatter(e) 2019. Gas fraction measurements using single and dual beam gamma-densitometry for two phase gas-liquid pipe flow. IEEE Instrumentation and Measurement Technology Conference. Proceedings. 1-6.
  • Vis forfatter(e) 2018. Characterization of multiphase flow blind-T mixing using high speed gamma-ray tomometry. Flow Measurement and Instrumentation. 205-212.
  • Vis forfatter(e) 2011. Monte Carlo simulation for multi-channel gamma-ray process tomography. Measurement Science and Technology. 10 sider.
  • Vis forfatter(e) 2011. Dual-mode capacitance and gamma-ray tomography using the Landweber reconstruction algorithm. Measurement Science and Technology. 7 sider.
  • Vis forfatter(e) 2010. Dynamic characterization of a high speed gamma-ray tomograph. Flow Measurement and Instrumentation. 538-545.
  • Vis forfatter(e) 2008. Semi-empirical scatter correction model for high-speed gamma-ray tomography. Measurement Science and Technology. 6 sider.
  • Vis forfatter(e) 2008. Experimental analysis of high-speed gamma-ray tomography performance. Measurement Science and Technology. 10.
  • Vis forfatter(e) 2008. A data acquisition and control system for high-speed gamma-ray tomography. Measurement Science and Technology. 9 sider.
Rapport
  • Vis forfatter(e) 2008. Industrial Process Gamma Tomography. .
Vitenskapelig foredrag
  • Vis forfatter(e) 2018. Investigation of Venturi constriction characteristics in multiphase flow using high speed gamma-ray tomography.
  • Vis forfatter(e) 2016. Investigation of multiphase flow blind-T mixing effectiveness using high speed gamma-ray tomometry.
  • Vis forfatter(e) 2014. Non-destructive monitoring of multiphase hydrocarbon flow by high-speed gamma-ray tomography.
  • Vis forfatter(e) 2012. The particle system iterative reconstruction technique in a high speed gamma-ray tomograph.
  • Vis forfatter(e) 2012. Inherent dual mode single energy gamma-ray tomography.
  • Vis forfatter(e) 2012. Industrial applications of tomographic gamma-ray methods.
  • Vis forfatter(e) 2010. Static characterization of dual mode capacitance and gamma-ray tomography using the Landweber reconstruction algorithm.
  • Vis forfatter(e) 2010. Dynamic characterization of a high speed gamma-ray tomograph.
  • Vis forfatter(e) 2007. USB-based data acquisition and control system for high speed gamma-ray tomography.
  • Vis forfatter(e) 2007. USB-based Data Acquisition and Control System for High Speed Gamma-ray Tomography.
  • Vis forfatter(e) 2007. Semi-empirical scatter correction models for high speed gamma-ray tomography.
  • Vis forfatter(e) 2007. Semi-empirical Scatter Correction Models for High-Speed Gamma-Ray Tomography.
  • Vis forfatter(e) 2007. EXPERIMENTAL TEST OF A NOVEL RECONSTRUCTION APPROACH BASED ON IRREGULAR GRID FOR HIGH-SPEED GAMMA-RAY TOMOGRAPHY.
  • Vis forfatter(e) 2007. EXPERIMENTAL TEST OF A NOVEL RECONSTRUCTION APPROACH BASED ON IRREGULAR GRID FOR HIGH-SPEED GAMMA-RAY TOMOGRAPHY.
  • Vis forfatter(e) 2007. Comparing Analysis of Image Visualisation Accuracy of Electrical Capacitance Tomography and Gamma Tomography.
  • Vis forfatter(e) 2007. Comparing Analysis of Image Visualisation Accuracy of Electrical Capacitance Tomography and Gamma Tomography.
  • Vis forfatter(e) 2006. Experimental noise analysis of reconstructed pixel values in high-speed gamma-ray tomography.
  • Vis forfatter(e) 2006. Experimental noise analysis of reconstructed pixel values in high-speed gamma-ray tomography.
  • Vis forfatter(e) 2005. First experimental results of multiphase hydrocarbon flow monitoring using dual modality gamma-ray tomography and high frequency magnetic field sensors.
  • Vis forfatter(e) 2003. Automatic weight matrix generation for gamma-ray tomography.
  • Vis forfatter(e) 2003. Automatic weight matrix generation for gamma-ray tomography.
Doktorgradsavhandling
  • Vis forfatter(e) 2009. Design optimization of high speed gamma-ray tomography.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Vis forfatter(e) 2020. Multimodal analysis of gas-oil intermittent structures in co-current horizontal flow.
Poster
  • Vis forfatter(e) 2016. Investigation of Multiphase Flow-Regimes After a Blind-T Mixer and at the Throat of the Venturi – Using Gamma-Ray Tomography and CFD Modelling.

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