- E-postRachid.Maad@uib.no
- Telefon+47 55 58 27 63
- BesøksadresseAllégaten 555007 Bergen
- PostadressePostboks 78035020 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.
- (2020). Multimodal Two-Phase Flow Measurement Using Dual Plane ECT and GRT. IEEE Transactions on Instrumentation and Measurement.
- (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.
- (2018). Characterization of multiphase flow blind-T mixing using high speed gamma-ray tomometry. Flow Measurement and Instrumentation. 205-212.
- (2011). Monte Carlo simulation for multi-channel gamma-ray process tomography. Measurement Science and Technology. 10 sider.
- (2011). Dual-mode capacitance and gamma-ray tomography using the Landweber reconstruction algorithm. Measurement Science and Technology. 7 sider.
- (2010). Dynamic characterization of a high speed gamma-ray tomograph. Flow Measurement and Instrumentation. 538-545.
- (2008). Semi-empirical scatter correction model for high-speed gamma-ray tomography. Measurement Science and Technology. 6 sider.
- (2008). Experimental analysis of high-speed gamma-ray tomography performance. Measurement Science and Technology. 10.
- (2008). A data acquisition and control system for high-speed gamma-ray tomography. Measurement Science and Technology. 9 sider.
- (2008). Industrial Process Gamma Tomography. .
- (2018). Investigation of Venturi constriction characteristics in multiphase flow using high speed gamma-ray tomography.
- (2016). Investigation of multiphase flow blind-T mixing effectiveness using high speed gamma-ray tomometry.
- (2014). Non-destructive monitoring of multiphase hydrocarbon flow by high-speed gamma-ray tomography.
- (2012). The particle system iterative reconstruction technique in a high speed gamma-ray tomograph.
- (2012). Inherent dual mode single energy gamma-ray tomography.
- (2012). Industrial applications of tomographic gamma-ray methods.
- (2010). Static characterization of dual mode capacitance and gamma-ray tomography using the Landweber reconstruction algorithm.
- (2010). Dynamic characterization of a high speed gamma-ray tomograph.
- (2007). USB-based data acquisition and control system for high speed gamma-ray tomography.
- (2007). USB-based Data Acquisition and Control System for High Speed Gamma-ray Tomography.
- (2007). Semi-empirical scatter correction models for high speed gamma-ray tomography.
- (2007). Semi-empirical Scatter Correction Models for High-Speed Gamma-Ray Tomography.
- (2007). EXPERIMENTAL TEST OF A NOVEL RECONSTRUCTION APPROACH BASED ON IRREGULAR GRID FOR HIGH-SPEED GAMMA-RAY TOMOGRAPHY.
- (2007). EXPERIMENTAL TEST OF A NOVEL RECONSTRUCTION APPROACH BASED ON IRREGULAR GRID FOR HIGH-SPEED GAMMA-RAY TOMOGRAPHY.
- (2007). Comparing Analysis of Image Visualisation Accuracy of Electrical Capacitance Tomography and Gamma Tomography.
- (2007). Comparing Analysis of Image Visualisation Accuracy of Electrical Capacitance Tomography and Gamma Tomography.
- (2006). Experimental noise analysis of reconstructed pixel values in high-speed gamma-ray tomography.
- (2006). Experimental noise analysis of reconstructed pixel values in high-speed gamma-ray tomography.
- (2005). First experimental results of multiphase hydrocarbon flow monitoring using dual modality gamma-ray tomography and high frequency magnetic field sensors.
- (2003). Automatic weight matrix generation for gamma-ray tomography.
- (2003). Automatic weight matrix generation for gamma-ray tomography.
- (2009). Design optimization of high speed gamma-ray tomography.
- (2020). Multimodal analysis of gas-oil intermittent structures in co-current horizontal flow.
- (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.