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Head of Department

Yngve Birkelund

Head of Department Department of Physics and Technology
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Tromsø
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  3. Yngve Birkelund

Statistical signal theory, higher order statistics, nonlinear systems, ultrasound, microwaves, hyperthermia, time series analysis and prediction, fluid dynamics, wind power resources, renewable energy.

Recent courses:

Older topics/experience:

  • FYS-1006 Innføring i signaler og sensorer
  • FYS-2014 Digital design
  • FYS-3011 Detection theory
  • AUT-1001 Programmering med mikrokontroller (Institutt for ingeniørvitenskap og sikkerhet)
  • AUT-2005 Reguleringsteknikk (Institutt for ingeniørvitenskap og sikkerhet)

Development and projects:

  • Flexible introductory courses in physics (FYS-0100)
  • Education in science for teachers (MNF-6001/6002)

Head of Department of Engineering and Safety. Associate professor in renewable energy.

  • Chen, Hao; Birkelund, Yngve; Anfinsen, Stian Normann; Staupe-Delgado, Reidar; Yuan, Fuqing. Assessing probabilistic modelling for wind speed from numerical weather prediction model and observation in the Arctic. Scientific Reports 2021. ISSN 2045-2322.

  • Chen, Hao; Birkelund, Yngve; Anfinsen, Stian Normann; Yuan, Fuqing. Comparative study of data-driven short-term wind power forecasting approaches for the Norwegian Arctic region. Journal of Renewable and Sustainable Energy 2021. ISSN 1941-7012.s doi: 10.1063/5.0038429.

  • Birkelund, Yngve; Anfinsen, Stian Normann; Yuan, Fuqing. Comparative study of data-driven short-term wind power forecasting approaches for the Norwegian Arctic region. Journal of Renewable and Sustainable Energy 2021. ISSN 1941-7012.s doi: 10.1063/5.0038429.

  • Solbakken, Kine; Birkelund, Yngve. Evaluation of the Weather Research and Forecasting (WRF) model with respect to wind in complex terrain. Journal of Physics: Conference Series (JPCS) 2018; Volum 1102 (1). ISSN 1742-6588.s 1 - 10.s doi: 10.1088/1742-6596/1102/1/012011.

  • Birkelund, Yngve; Alessandrini, Stefano; Byrkjedal, Øyvind; Monache, Luca Delle. Wind power prediction in complex terrain using analog ensembles. Journal of Physics: Conference Series (JPCS) 2018; Volum 1102 (1). ISSN 1742-6588.s doi: 10.1088/1742-6596/1102/1/012008.

  • Beka, Thomas Ibsa; Senger, Kim; Autio, Uula; Smirnov, Maxim; Birkelund, Yngve. Integrated electromagnetic data investigation of a Mesozoic CO2 storage target reservoir-cap-rock succession, Svalbard. Journal of Applied Geophysics 2017; Volum 136. ISSN 0926-9851.s 417 - 430.s doi: 10.1016/j.jappgeo.2016.11.021.

  • Beka, Thomas Ibsa; Bergh, Steffen G; Smirnov, Maxim; Birkelund, Yngve. Magnetotelluric signatures of the complex tertiary fold–thrust belt and extensional fault architecture beneath Brøggerhalvøya, Svalbard. Polar Research 2017; Volum 36 (1). ISSN 0800-0395.s doi: 10.1080/17518369.2017.1409586.

  • Bilal, Muhammad; Birkelund, Yngve; Homola, Matthew Carl; Virk, Muhammad Shakeel. Wind over complex terrain e Microscale modelling with two types of mesoscale winds at Nygårdsfjell. Renewable Energy 2016; Volum 99. ISSN 0960-1481.s 647 - 653.s doi: 10.1016/j.renene.2016.07.042.

  • Bilal, Muhammad; Solbakken, Kine; Birkelund, Yngve. Wind speed and direction predictions by WRF and WindSim coupling over Nygårdsfjell. Journal of Physics: Conference Series (JPCS) 2016; Volum 753 (8). ISSN 1742-6588.s 1 - 9.s doi: 10.1088/1742-6596/753/8/082018.

  • Beka, Thomas Ibsa; Smirnov, Maxim; Birkelund, Yngve; Senger, Kim; Bergh, Steffen G. Analysis and 3D inversion of magnetotelluric crooked profile data from central Svalbard for geothermal application. Tectonophysics 2016; Volum 686. ISSN 0040-1951.s 98 - 115.s doi: 10.1016/j.tecto.2016.07.024.

  • Bilal, Muhammad; Birkelund, Yngve; Matthew, Homola. High Winds at Nygårdsfjell. Journal of clean energy technologies 2015; Volum 3 (2). ISSN 1793-8201.s 106 - 109.s doi: 10.7763/JOCET.2015.V3.176.

  • Birkelund, Yngve; Johansen, Jarle André; Hanssen, Alfred. High-precision surrogate data based tests for Gaussianity and linearity of discrete time random processes. European Signal Processing Conference 2015; Volum 06-10-September-2004:7079994. ISSN 2076-1465.s 73 - 76.s doi: 10.1016/j.sigpro.2009.04.013.

  • Abrahamsen, Malin; Birkelund, Yngve. Coastal wind from satellite measurements and meteorological models for offshore wind power prediction. ISOPE - International Offshore and Polar Engineering Conference. Proceedings 2015; Volum 2015-January. ISSN 1098-6189.s 699 - 705.

  • Bilal, Muhammad; Araya, Guillermo; Birkelund, Yngve. Preliminary Assessment of Remote Wind Sites. Energy Procedia 2015; Volum 75. ISSN 1876-6102.s 658 - 663.s doi: 10.1016/j.egypro.2015.07.481.

  • Beka, Thomas Ibsa; Smirnov, Maxim; Bergh, Steffen G; Birkelund, Yngve. The First Magnetotelluric Image of the Lithospheric-Scale Geological Architecture in Central Svalbard, Arctic Norway. (Fulltekst: http://www.polarresearch.net/index.php/polar/article/view/26766 Polar Research 2015; Volum 34 (26766). ISSN 0800-0395.s doi: 10.3402/polar.v34.26766.

  • Skjelvareid, Martin Hansen; Birkelund, Yngve; Larsen, yngvar. Internal pipeline inspection using virtual source synthetic aperture ultrasound imaging. NDT & E international 2013; Volum 54. ISSN 0963-8695.s 151 - 158.s doi: 10.1016/j.ndteint.2012.10.005.

  • Klemetsen, Øystein; Jacobsen, Svein Ketil; Birkelund, Yngve. Radiometric temperature reading of a hot ellipsoidal object inside the oral cavity by a shielded microwave antenna put flush to the cheek. Physics in Medicine and Biology 2012; Volum 57 (9). ISSN 0031-9155.s 2633 - 2652.s doi: 10.1088/0031-9155/57/9/2633.

  • Skjelvareid, Martin Hansen; Birkelund, Yngve; Larsen, yngvar. Synthetic Aperture Focusing of Outwardly Directed Cylindrical Ultrasound Scans. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 2012; Volum 59 (11). ISSN 0885-3010.s 2460 - 2469.s doi: 10.1109/TUFFC.2012.2478.

  • Skjelvareid, Martin Hansen; Olofsson, Tomas; Birkelund, Yngve. Three-dimensional ultrasonic imaging in multilayered media. AIP Conference Proceedings 2012; Volum 1433. ISSN 0094-243X.s 169 - 172.s doi: 10.1063/1.3703163.

  • Jacobsen, Svein Ketil; Klemetsen, Øystein; Birkelund, Yngve. Vesicoureteral reflux in young children: a study of radiometric thermometry as detection modality using an ex vivo porcine model. Physics in Medicine and Biology 2012; Volum 57 (17). ISSN 0031-9155.s 5557 - 5573.s doi: 10.1088/0031-9155/57/17/5557.

  • Klemetsen, Øystein; Birkelund, Yngve; Jacobsen, Svein Ketil; Maccarini, Paolo; Stauffer, Paul R.. DESIGN OF MEDICAL RADIOMETER FRONT-END FOR IMPROVED PERFORMANCE. Progress in Electromagnetics Research B 2011; Volum 27. ISSN 1937-6472.s 289 - 306.s doi: 10.2528/PIERB10101204.

  • Skjelvareid, Martin Hansen; Olofsson, Tomas; Birkelund, Yngve. Ultrasonic imaging of pitting using multilayer synthetic aperture focusing. IEEE International Ultrasonics Symposium Proceedings 2011. ISSN 1051-0117.s doi: 10.1109/ultsym.2011.0507.

  • Birkelund, Yngve; Melandsø, Frank. Integrated ultrasound sensor for microwave heating and radiometry in medical applications. IEEE International Ultrasonics Symposium Proceedings 2011. ISSN 1051-0117.s doi: 10.1109/ultsym.2011.0015.

  • Stauffer, P R; Maccarini, P F; Arunachalam, K.; De Luca, Valeria; Salahi, Sara; Boico, A; Klemetsen, Øystein; Birkelund, Yngve; Jacobsen, Svein Ketil; Bardati, F; Tognolatti, P; Snow, Brent W.. Microwave radiometry for non-invasive detection of vesicoureteral reflux (VUR) following bladder warming. Proceedings of SPIE, the International Society for Optical Engineering 2011; Volum 7901 (1). ISSN 0277-786X.s doi: 10.1117/12.875636.

  • Snow, Brent W.; Arunachalam, Kavitha; De Luca, Valeria; Maccarini, Paolo; Klemetsen, Øystein; Birkelund, Yngve; Pysher, TJ; Stauffer, Paul R.. Non-invasive vesicoureteral reflux detection: Heating risk studies for a new device. Journal of Pediatric Urology 2011; Volum 7 (6). ISSN 1477-5131.s 624 - 630.s doi: 10.1016/j.jpurol.2011.05.005.

  • Birkelund, Yngve; Klemetsen, Øystein; Jacobsen, Svein Ketil; Arunachalam, Kavitha; Maccarini, Paolo; Stauffer, Paul R.. Vesicoureteral Reflux in Children: A Phantom Study of Microwave Heating and Radiometric Thermometry of Pediatric Bladder. IEEE Transactions on Biomedical Engineering 2011; Volum 58 (11). ISSN 0018-9294.s 3269 - 3278.s doi: 10.1109/TBME.2011.2167148.

  • Skjelvareid, Martin H.; Olofsson, Tomas; Birkelund, Yngve; Larsen, yngvar. Synthetic Aperture Focusing of Ultrasonic Data From Multilayered Media Using an Omega-K Algorithm. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 2011; Volum 58 (5). ISSN 0885-3010.s 1037 - 1048.s doi: 10.1109/TUFFC.2011.1904.

  • Snow, Brent W.; Kavitha, Arunachalam; De Luca, Valeria; Klemetsen, Øystein; Birkelund, Yngve; Stauffer, Paul R.; Maccarini, Paolo. NONINVASIVE GRADE V VESICOURETERAL REFLUX DETECTION: AN ANIMAL STUDY. The Internet Journal of Urology 2011; Volum 185 (4S). ISSN 1528-8390.s e232 - e232.

  • Klemetsen, Øystein; Birkelund, Yngve; Maccarini, P.F.; Stauffer, Paul; Jacobsen, Svein Ketil. Design of Small-sized and Low-cost Front End to Medical Microwave Radiometer. Progress in Electromagnetics Research Symposium 2010. ISSN 1559-9450.s 932 - 936.

  • Skjelvareid, Martin Hansen; Birkelund, Yngve. ULTRASOUND IMAGING USING MULTILAYER SYNTHETIC APERTURE FOCUSING. Journal of Pressure Vessel Technology 2010. ISSN 0094-9930.s 379 - 387.

  • Klemetsen, Øystein; Birkelund, Yngve; Jacobsen, Svein Ketil. Low-cost and small-sized medical microwave radiometer design. IEEE Antennas & Propagation Magazine 2010. ISSN 1045-9243.

  • Jacobsen, Svein Ketil; Birkelund, Yngve. Improved Resolution and Reduced Clutter in Ultra-Wideband Microwave Imaging Using Cross-Correlated Back Projection: Experimental and Numerical Results. (http://www.hindawi.com/journals/ijbi/2010/781095.html) International Journal of Biomedical Imaging 2010; Volum 2010. ISSN 1687-4188.s doi: 10.1155/2010/781095.

  • Arunachalam, Kavitha; Maccarini, Paolo; Schlorff, J F; Birkelund, Yngve; Jacobsen, Svein Ketil; Stauffer, Paul R.. Design of a water coupling bolus with improved flow distribution for multi-element superficial hyperthermia applicators. International Journal of Hyperthermia 2009; Volum 25 (7). ISSN 0265-6736.s 554 - 565.s doi: 10.3109/02656730903124506.

  • Birkelund, Yngve; Hanssen, Alfred. Improved bispectrum based tests for Gaussianity and linearity. Signal Processing 2009; Volum 89 (12). ISSN 0165-1684.s 2537 - 2546.s doi: 10.1016/j.sigpro.2009.04.013.

  • Birkelund, Yngve; Jacobsen, Svein Ketil; Arunachalam, Kavitha; Maccarini, Paolo; Stauffer, Paul R.. Flow patterns and heat convection in a rectangular water bolus for use in superficial hyperthermia. Physics in Medicine and Biology 2009; Volum 54 (13). ISSN 0031-9155.s 3937 - 3953.s doi: 10.1088/0031-9155/54/13/001.

  • Hoff, Bjarte; Chiesa, Matteo; Birkelund, Yngve; Kristoffersen, Berit. A renewable arctic: Green energy transitions. Arctic Circle 2019 2019-10-10 - 2019-10-13 2019.

  • Hågbo, Trond-Ola; Birkelund, Yngve; Henaug, Cathrine. North Atlantic Energy Network, Appendix D, Norway. (Fulltekst: https://orkustofnun.is/gogn/Skyrslur/OS-2016/North-Atlantic-Energy-Network-Report.pdf 2016.

  • Bilal, Muhammad; Birkelund, Yngve; Araya, Guillermo; Walter, Gutierrez; Arquimedes, Ruiz-Columbie. Evaluation of aerodynamic loads in wind farms due to katabatic winds.. AWEA conference Orlando USA 2015-05-18 - 2015-05-21 2015.

  • Bilal, Muhammad; Birkelund, Yngve; Araya, Guillermo. Wind Flow Over a Complex Terrain in Nygårdsfjell, Norway.. ASME 2015 Power Conference 2015-06-28 - 2015-07-02 2015.

  • Beka, Thomas Ibsa; Smirnov, Maxim; Birkelund, Yngve. Reconnaissance Geothermal Resource Assessment Using Magnetotelluric Imaging on Svalbard, Norway. World Geothermal Congress 2015-04-19 - 2015-04-24 2015.

  • Beka, Thomas Ibsa; Smirnov, Maxim; Birkelund, Yngve. Magnetotelluric imaging on Svalbard: Fitting data having anisotropic behavior with 3D inversion. 22nd EM Induction Workshop 2014-08-24 - 2014-08-30 2014.

  • Midttømme, Kirsti; Koc, Nalan; Birkelund, Yngve; Øiseth, Ole; Braathen, Alvar; Eriksson, Magnus; Oye, Volker. Geotermisk energi for Svalbard. Geoenergi2013 (Sammendrag: http://cger.no/doc//Kirsti%20Midttomme%20Svalbard.pdf) 2013-08-27 - 2013-08-29 2013.

  • Bilal, Muhammad; Birkelund, Yngve. Empirical modeling of wind power production during winter season. Winter Wind 2013 2013-02-12 - 2013-02-13 2013.

  • Beka, Thomas Ibsa; Birkelund, Yngve; Smirnov, Maxim. Correlating magnetotelluric sounding with borehole data for geothermal parameter characterization in Sulitjelma area, Norway. Proceedings of the European Geothermal Congress, ISBN 978-2-8052-0226-1 2013-06-03 - 2013-06-07 2013.

  • Netland, Kjell Øystein; Birkelund, Yngve; Køller, Hans-Georg. Undervisning av globale klimaendringar. 2012.

  • Haaland, Silje Sanderud; Birkelund, Yngve. Estimation of production loss due to icing on wind turbines. Arctic Frontiers 2012-01-22 - 2012-01-27 2012.

  • Skjelvareid, Martin Hansen; Olofsson, Tomas; Birkelund, Yngve. Three-dimensional ultrasonic imaging in multilayered media. International Congress on Ultrasonics 2011-09-05 - 2011-09-08 2011.

  • Snow, Brent W.; Arunachalam, Kavitha; De Luca, Valeria; Klemetsen, Øystein; Birkelund, Yngve; Stauffer, Paul R.; Maccarini, Paolo. NONINVASIVE GRADE V VESICOURETERAL REFLUX DETECTION: AN ANIMAL STUDY. 22nd Annual Congress of the ESPU 2011-04-27 - 2011-04-30 2011.

  • Stauffer, Paul R.; Maccarini, Paolo; Arunachalam, Kavitha; Salahi, Sara; De Luca, Valeria; Klemetsen, Øystein; Birkelund, Yngve; Jacobsen, Svein Ketil; Bardati, Fernando; Tognolotti, Piero; Snow, Brent W.. Hyperthermia and microwave radiometry for non-invasive detection of vesicoureteral reflux (VUR). SPIE Photonics West 2011 2011-01-22 - 2011-01-27 2011.

  • Skjelvareid, Martin Hansen; Birkelund, Yngve. Ultrasound Imaging Using Multilayer Synthetic Aperture Focusing. ASME 2010 Pressure Vessels and Piping Conference (Fulltekst: http://dx.doi.org/10.1115/PVP2010-25338 2010-07-18 - 2010-07-22 2010.

  • Birkelund, Yngve; Klemetsen, Øystein; Arunachalam, Kavitha; De Luca, Valeria; Maccarini, Paolo; Jacobsen, Svein Ketil; Stauffer, Paul R.. Radiometric temperature monitoring of microwave hyperthermia. Society For Thermal Medicine 2010 Annual Meeting 2010-04-23 - 2010-04-26 2010.

  • Snow, Brent W.; Stauffer, Paul R.; Arunachalam, Kavitha; Maccarini, Paolo; De Luca, Valeria; Klemetsen, Øystein; Birkelund, Yngve. Non-Invasive Vesicoureteral Reflux Detection: A New Device. American Academy of Pediatrics National Conference & Exhibition (Sammendrag: http://aap.confex.com/aap/2010/webprogram/Paper10483.html) 2010-10-02 - 2010-10-05 2010.

  • Stauffer, Paul R.; Maccarini, Paolo; Arunachalam, Kavitha; De Luca, Valeria; Klemetsen, Øystein; Birkelund, Yngve; Jacobsen, Svein Ketil; Bardati, F; Tognolatti, P; Snow, Brent W.. Non-Oncologic Application for Microwave Radiometry in Temperature Monitoring and Control. 26th Annual Meeting of EUROPEAN SOCIETY for HYPERTHERMIC ONCOLOGY 2010-05-20 - 2010-05-22 2010.

  • Klemetsen, Øystein; Birkelund, Yngve; Maccarini, Paolo; Arunachalam, Kavitha; De Luca, Valeria; Jacobsen, Svein Ketil; Stauffer, Paul R.. Miniature radiometer frontend design for noninvasive temperature measurements. Society for Thermal Medicine 2010 Annual Meeting 2010-04-23 - 2010-04-26 2010.

  • Klemetsen, Øystein; Birkelund, Yngve; Maccarini, Paolo; Stauffer, Paul R.; Jacobsen, Svein Ketil. Design of small-sized and low-cost front end to medical microwave radiometer. 28th Progress In Electromagnetics Research Symposium (Fulltekst: http://www.piers.org/piersproceedings/piers2010CambridgeProc.php?start=198 2010-07-05 - 2010-07-08 2010.

  • Klemetsen, Øystein; Birkelund, Yngve; Jacobsen, Svein Ketil. Low-cost and small-sized medical microwave radiometer design. 2010 IEEE Internatinal Symposium on Antennas and Propagation and CNC/USNC/URSI Radio Science Meeting (Fulltekst: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5560949 2010-07-11 - 2010-07-17 2010.

  • Birkelund, Yngve. Akrobalyse - Matematikk og fysikk i akrobatikk. Forskningsdagene 2008-09-26 - 2008-09-26 2008.

  • Birkelund, Yngve; Jacobsen, Svein Ketil; Stauffer, Paul R.; Arunachalam, K.; Maccarini, P F. Water coupling bolus design for microwave array applicators. International Congress on Hyperthermic Oncology 2008-04-09 - 2008-04-12 2008.

  • Birkelund, Yngve; Hanssen, Alfred; Øigård, Tor Arne; Hindberg, Heidi; Hanssen, Øistein. Analysis of Harmonic and Subharmonic Effects in a Transversal Flute Made from Heracleum Laciniatum. 7th Nordic Signal Processing Symposium (NORSIG'06) (Omtale: http://www.hi.is/pub/norsig2006/norsig2006-n14.html) 2006-07-07 - 2006-07-09 2007.

  • Birkelund, Yngve; Hanssen, Alfred; Øigård, Tor Arne; Hindberg, Heidi; Holm, Sverre. The sound of rock 'n' roll: analysis and modelling of valve amplifier distortion for electric guitar. IMA Seventh Int. Conf. on Mathematics in Signal Processing 2006-12-18 - 2006-12-20 2007.

  • Birkelund, Yngve; Hanssen, Alfred; Øygård, Tor-Arne; Hindberg, Heidi. Kernel-based estimators for the Kirkwood-Rihaczek time-frequency spectrum. The 14th European Signal Processing Conference, EUSIPCO, by Eurasip. 2006-09-04 - 2006-09-08 2006.

  • Birkelund, Yngve; Hanssen, Alfred; Øygård, Tor-Arne. Spectra, bispectral, and dual-frequency analysis of tube amplified electric guitar sound. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics 2005-10-16 - 2005-10-19 2005.

  • Birkelund, Yngve; Hanssen, Alfred; Johansen, Jarle Andre. High-precision surrogate based tests for gaussianity and linearity. XII European Signal Processing Conference (EUSIPCO) 2004-09-06 - 2004-09-06 2004.

  • Birkelund, Yngve; Johansen, Jarle Andre; Cressler, John D.; Jin, Zhenrong. A statistical tool for probing the coupling between noisytraps in semiconductor devices, with application to 1/f noise in SiGe HBTs. Topical Meeting on Silicon Monolitic Integrated Circuits in RF Systems (SiRF) 2004-09-08 - 2004-09-08 2004.

  • Birkelund, Yngve; Hanssen, Alfred; Johansen, Jarle Andre; van Rheenen, Arthur D.; Cressler, John D.. Time series analysis of low-frequency noise in SiGe HBTs. Norsk symposium i signalbehandling 2003. 2003-10-02 - 2003-10-04 2003.

  • Hoff, Bjarte; Chiesa, Matteo; Birkelund, Yngve; Kristoffersen, Berit. A renewable arctic: Green energy transitions. Arctic Circle 2019 2019-10-10 - 2019-10-13 2019.

  • Hågbo, Trond-Ola; Birkelund, Yngve; Henaug, Cathrine. North Atlantic Energy Network, Appendix D, Norway. (Fulltekst: https://orkustofnun.is/gogn/Skyrslur/OS-2016/North-Atlantic-Energy-Network-Report.pdf 2016.

  • Bilal, Muhammad; Birkelund, Yngve; Araya, Guillermo; Walter, Gutierrez; Arquimedes, Ruiz-Columbie. Evaluation of aerodynamic loads in wind farms due to katabatic winds.. AWEA conference Orlando USA 2015-05-18 - 2015-05-21 2015.

  • Bilal, Muhammad; Birkelund, Yngve; Araya, Guillermo. Wind Flow Over a Complex Terrain in Nygårdsfjell, Norway.. ASME 2015 Power Conference 2015-06-28 - 2015-07-02 2015.

  • Beka, Thomas Ibsa; Smirnov, Maxim; Birkelund, Yngve. Reconnaissance Geothermal Resource Assessment Using Magnetotelluric Imaging on Svalbard, Norway. World Geothermal Congress 2015-04-19 - 2015-04-24 2015.

  • Beka, Thomas Ibsa; Smirnov, Maxim; Birkelund, Yngve. Magnetotelluric imaging on Svalbard: Fitting data having anisotropic behavior with 3D inversion. 22nd EM Induction Workshop 2014-08-24 - 2014-08-30 2014.

  • Midttømme, Kirsti; Koc, Nalan; Birkelund, Yngve; Øiseth, Ole; Braathen, Alvar; Eriksson, Magnus; Oye, Volker. Geotermisk energi for Svalbard. Geoenergi2013 (Sammendrag: http://cger.no/doc//Kirsti%20Midttomme%20Svalbard.pdf) 2013-08-27 - 2013-08-29 2013.

  • Bilal, Muhammad; Birkelund, Yngve. Empirical modeling of wind power production during winter season. Winter Wind 2013 2013-02-12 - 2013-02-13 2013.

  • Beka, Thomas Ibsa; Birkelund, Yngve; Smirnov, Maxim. Correlating magnetotelluric sounding with borehole data for geothermal parameter characterization in Sulitjelma area, Norway. Proceedings of the European Geothermal Congress, ISBN 978-2-8052-0226-1 2013-06-03 - 2013-06-07 2013.

  • Netland, Kjell Øystein; Birkelund, Yngve; Køller, Hans-Georg. Undervisning av globale klimaendringar. 2012.

  • Haaland, Silje Sanderud; Birkelund, Yngve. Estimation of production loss due to icing on wind turbines. Arctic Frontiers 2012-01-22 - 2012-01-27 2012.

  • Skjelvareid, Martin Hansen; Olofsson, Tomas; Birkelund, Yngve. Three-dimensional ultrasonic imaging in multilayered media. International Congress on Ultrasonics 2011-09-05 - 2011-09-08 2011.

  • Snow, Brent W.; Arunachalam, Kavitha; De Luca, Valeria; Klemetsen, Øystein; Birkelund, Yngve; Stauffer, Paul R.; Maccarini, Paolo. NONINVASIVE GRADE V VESICOURETERAL REFLUX DETECTION: AN ANIMAL STUDY. 22nd Annual Congress of the ESPU 2011-04-27 - 2011-04-30 2011.

  • Stauffer, Paul R.; Maccarini, Paolo; Arunachalam, Kavitha; Salahi, Sara; De Luca, Valeria; Klemetsen, Øystein; Birkelund, Yngve; Jacobsen, Svein Ketil; Bardati, Fernando; Tognolotti, Piero; Snow, Brent W.. Hyperthermia and microwave radiometry for non-invasive detection of vesicoureteral reflux (VUR). SPIE Photonics West 2011 2011-01-22 - 2011-01-27 2011.

  • Skjelvareid, Martin Hansen; Birkelund, Yngve. Ultrasound Imaging Using Multilayer Synthetic Aperture Focusing. ASME 2010 Pressure Vessels and Piping Conference (Fulltekst: http://dx.doi.org/10.1115/PVP2010-25338 2010-07-18 - 2010-07-22 2010.

  • Birkelund, Yngve; Klemetsen, Øystein; Arunachalam, Kavitha; De Luca, Valeria; Maccarini, Paolo; Jacobsen, Svein Ketil; Stauffer, Paul R.. Radiometric temperature monitoring of microwave hyperthermia. Society For Thermal Medicine 2010 Annual Meeting 2010-04-23 - 2010-04-26 2010.

  • Snow, Brent W.; Stauffer, Paul R.; Arunachalam, Kavitha; Maccarini, Paolo; De Luca, Valeria; Klemetsen, Øystein; Birkelund, Yngve. Non-Invasive Vesicoureteral Reflux Detection: A New Device. American Academy of Pediatrics National Conference & Exhibition (Sammendrag: http://aap.confex.com/aap/2010/webprogram/Paper10483.html) 2010-10-02 - 2010-10-05 2010.

  • Stauffer, Paul R.; Maccarini, Paolo; Arunachalam, Kavitha; De Luca, Valeria; Klemetsen, Øystein; Birkelund, Yngve; Jacobsen, Svein Ketil; Bardati, F; Tognolatti, P; Snow, Brent W.. Non-Oncologic Application for Microwave Radiometry in Temperature Monitoring and Control. 26th Annual Meeting of EUROPEAN SOCIETY for HYPERTHERMIC ONCOLOGY 2010-05-20 - 2010-05-22 2010.

  • Klemetsen, Øystein; Birkelund, Yngve; Maccarini, Paolo; Arunachalam, Kavitha; De Luca, Valeria; Jacobsen, Svein Ketil; Stauffer, Paul R.. Miniature radiometer frontend design for noninvasive temperature measurements. Society for Thermal Medicine 2010 Annual Meeting 2010-04-23 - 2010-04-26 2010.

  • Klemetsen, Øystein; Birkelund, Yngve; Maccarini, Paolo; Stauffer, Paul R.; Jacobsen, Svein Ketil. Design of small-sized and low-cost front end to medical microwave radiometer. 28th Progress In Electromagnetics Research Symposium (Fulltekst: http://www.piers.org/piersproceedings/piers2010CambridgeProc.php?start=198 2010-07-05 - 2010-07-08 2010.

  • Klemetsen, Øystein; Birkelund, Yngve; Jacobsen, Svein Ketil. Low-cost and small-sized medical microwave radiometer design. 2010 IEEE Internatinal Symposium on Antennas and Propagation and CNC/USNC/URSI Radio Science Meeting (Fulltekst: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5560949 2010-07-11 - 2010-07-17 2010.

  • Birkelund, Yngve. Akrobalyse - Matematikk og fysikk i akrobatikk. Forskningsdagene 2008-09-26 - 2008-09-26 2008.

  • Birkelund, Yngve; Jacobsen, Svein Ketil; Stauffer, Paul R.; Arunachalam, K.; Maccarini, P F. Water coupling bolus design for microwave array applicators. International Congress on Hyperthermic Oncology 2008-04-09 - 2008-04-12 2008.

  • Birkelund, Yngve; Hanssen, Alfred; Øigård, Tor Arne; Hindberg, Heidi; Hanssen, Øistein. Analysis of Harmonic and Subharmonic Effects in a Transversal Flute Made from Heracleum Laciniatum. 7th Nordic Signal Processing Symposium (NORSIG'06) (Omtale: http://www.hi.is/pub/norsig2006/norsig2006-n14.html) 2006-07-07 - 2006-07-09 2007.

  • Birkelund, Yngve; Hanssen, Alfred; Øigård, Tor Arne; Hindberg, Heidi; Holm, Sverre. The sound of rock 'n' roll: analysis and modelling of valve amplifier distortion for electric guitar. IMA Seventh Int. Conf. on Mathematics in Signal Processing 2006-12-18 - 2006-12-20 2007.

  • Birkelund, Yngve; Hanssen, Alfred; Øygård, Tor-Arne; Hindberg, Heidi. Kernel-based estimators for the Kirkwood-Rihaczek time-frequency spectrum. The 14th European Signal Processing Conference, EUSIPCO, by Eurasip. 2006-09-04 - 2006-09-08 2006.

  • Birkelund, Yngve; Hanssen, Alfred; Øygård, Tor-Arne. Spectra, bispectral, and dual-frequency analysis of tube amplified electric guitar sound. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics 2005-10-16 - 2005-10-19 2005.

  • Birkelund, Yngve; Hanssen, Alfred; Johansen, Jarle Andre. High-precision surrogate based tests for gaussianity and linearity. XII European Signal Processing Conference (EUSIPCO) 2004-09-06 - 2004-09-06 2004.

  • Birkelund, Yngve; Johansen, Jarle Andre; Cressler, John D.; Jin, Zhenrong. A statistical tool for probing the coupling between noisytraps in semiconductor devices, with application to 1/f noise in SiGe HBTs. Topical Meeting on Silicon Monolitic Integrated Circuits in RF Systems (SiRF) 2004-09-08 - 2004-09-08 2004.

  • Birkelund, Yngve; Hanssen, Alfred; Johansen, Jarle Andre; van Rheenen, Arthur D.; Cressler, John D.. Time series analysis of low-frequency noise in SiGe HBTs. Norsk symposium i signalbehandling 2003. 2003-10-02 - 2003-10-04 2003.

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