Et profilbilde

Associate Professor
Kristian Thorsen { "honorific-suffix": "Associate Professor", "fn": "Kristian Thorsen", "tel": "Telephone: +47 51832056", "email": "kristian.thorsen@uis.no" }

Faculty Faculty of Science and Technology
Department Department of Electrical Engineering and Computer Science
Room KE E-404
Teaching

(full courses)
Realfag 1 (Introduction to math and physics 1)
Undergraduate course for first semester students taking a bachelor
degree in electrical engineering (Y-vei). Autumn 2013
Realfag 2 (Introduction to math and physics 2)
Undergraduate course for second semester students taking a
bachelor degree in electrical engineering (Y-vei). Spring 2014

Links: Researchgate

Courses taught

Research fields

Modeling and control in biophysical systems.

- Cybernetics and control theory in biochemical, biophysical, and physiological processes.

Control theory is applied to enhance understanding of biochemical mechanisms behind robust adaptation and homeostasis, especially the ability to perform homeostasis under oscillatory conditions. The work includes identifying model structures leading to robust homeostasis and/or oscillatory performance together with simulation of nonlinear systems and nonlinear analysis of biophysical systems from a control theoretic point of view.

Selected publications

  • K. Thorsen, P. Ruoff and T. Drengstig (2013), Control theoretic properties of physiological controller motifs. IEEE International Conference on System Science and Engineering (ICSSE 2013), Budapest, Hungary.
  • T. Drengstig, I. W. Jolma, X. Y. Ni, K. Thorsen, X. M. Xu and P. Ruoff (2012), A Basic Set of Homeostatic Controller Motifs. Biophysical Journal, Volume 103, Issue 9, 2000-2010, doi:10.1016/j.bpj.2012.09.033
  • T. Drengstig, X. Y. Ni, K. Thorsen, I. W. Jolma, and P. Ruoff (2012), Robust Adaptation and Homeostasis by Autocatalysis. J. Phys. Chem. B, 116, pp. 5355-5363.

Research in progress

Work experience

Board positions

01.08.2013-31.07.2014
Board member of the central university board at the University of Stavanger.
Representing PhD candidates and temporary employed staff.

20.11.2012-31.07.2013
Deputy board member of the central university board at the University of Stavanger.
Representing PhD candidates and temporary employed staff.

2012-present:
Board member of the department board at the Department of electrical engineering and computer science at the University of Stavanger.
Representing PhD candidates and temporary employed staff.

2008-2009:
Board member of the department board at the Department of electrical engineering and computer science at the University of Stavanger.
Representing the students.

2008-2009:
Board member of the of the faculty board at the Faculty of science and technology at the University of Stavanger.
Representing the students.

Scientific publications (from Cristin)

  • Thorsen, Kristian; Drengstig, Tormod (veileder); Ruoff, Peter (veileder) (2015). Controller Motifs for Homeostatic Regulation and Their Applications in Biological Systems. Universitetet i Stavanger. ISBN 978-82-7644-628-9. 300 p.
  • Ang, Jordan; Tveit, Daniel Myklatun; Fjeld, Gunhild; Drengstig, Tormod; Ruoff, Heinz Peter; McMillen, David R.; Thorsen, Kristian (2018). Reconciling principles for how to achieve feedback and control in biological systems. 2018-09-24 - 2018-09-28.
  • Fjeld, Gunhild; Nordgård, Oddmund; Thorsen, Kristian (2018). Combining real time experimental data with a mathematical model to understand cancer cell metabolism. International Study Group for Systems Biology (ISGSB); 2018-09-24 - 2018-09-28.
  • Fjeld, Gunhild; Nordgård, Oddmund; Thorsen, Kristian (2018). Modeling the redirection of metabolic flux in cancer cells. Cell; 2018-12-09 - 2018-12-11.
  • Kommedal, Roald; Kumar, Gopalakrishnan; Kaster, Krista Michelle; Pala Ozkok, Ilke; Thorsen, Kristian (2018). A simple mathematical model for antimicrobial resistance gene transfer in wastewater treatment models. Nanjing University; 2018-10-28 - 2018-10-31.
  • Thorsen, Kristian (2018). How to achieve and understand feedback and control in biological systems. MoBi2C;
  • Thorsen, Kristian (2018). Mathematical foundations for industrial robots. UiS;
  • Thorsen, Kristian (2018). Work at the UiS group for biological cybernetics: Building a controller for regulation of intracellular copper in yeast.. University of California Merced; 2018-04-04 - 2018-04-05.
  • Stokka, Svein H.; Jakobsen, Kim A.; Thorsen, Kristian; Drengstig, Tormod (2017). Physiological based Modeling and Control of an Industrial Tank Process. 2017-09-25 - 2017-09-27.
  • Tveit, Daniel Myklatun; Thorsen, Kristian (2017). Passivity-based analysis of biochemical networks displaying homeostasis. 2017-09-25 - 2017-09-27.
  • Thorsen, Kristian (2016). Kaosteori - deterministiske system med uventet og irregulær oppførsel.. ABB Robotics; 2016-05-13.
  • Thorsen, Kristian (2016). The tendency against change: control and regulation as a condition for life.. i/o/lab senter for framtidskunst; 2016-08-12.
  • Thorsen, Kristian; Risvoll, Geir; Mazumder, Mostafizur; McMillen, David R. (2016). A controller for regulation of intracellular copper in S. cerevisiae. 2016-09-16 - 2016-09-20.
  • Thorsen, Kristian; Risvoll, Geir; Tveit, Daniel Myklatun; Ruoff, Peter; Drengstig, Tormod (2016). Tuning of Physiological Controller Motifs. 2016-09-12 - 2016-09-16.
  • Agafonov, Oleg; Selstø, Christina Helen; Thorsen, Kristian; Xu, Xiang Ming; Drengstig, Tormod; Ruoff, Peter (2015). The Organization of Controller Motifs Leading to Robust Plant Iron Homeostasis. The French Society of Plant Biologists; 2015-07-05 - 2015-07-09.
  • Thorsen, Kristian (2015). Building controller motifs to manipulate copper tolerance and homeostasis in S. cerevisiae.. CORE - Centre for Organelle Research; 2015-06-05.
  • Thorsen, Kristian; Drengstig, Tormod; Ruoff, Peter; Gundersen, Ina (2015). Nytt sykehus Ullandhaug - Jubler for plasseringen. Stavanger Aftenblad. [Newspaper]; 2015-11-28.
  • Thorsen, Kristian; Taraldsen, Lars; Andersen, Ina (2015). Automatisering - De mest utsatte ingeniørene: Derfor frykter de ikke automatiseringen. Teknisk Ukeblad. [Business/trade/industry journal]; 2015-05-22.
  • Drengstig, Tormod; Jolma, Ingunn Westvik; Thorsen, Kristian; Ruoff, Peter (2013). Fysiologiske reguleringsmekanismer.
  • Thorsen, Kristian (2013). Kybernetikk og fysiologi - biokjemiske kontrollere. Stavanger Offshore Tekniske Skole; 2013-03-12.
  • Thorsen, Kristian; Drengstig, Tormod; Ruoff, Peter (2013). Integrative modeling of glucose transport and homeostasis in enterocytes. Cold Spring Harbor Laboratory; 2013-03-19 - 2013-03-22.
  • Thorsen, Kristian (2012). Kybernetikk i fysiologi. Norsk Forening for Autmatisering; 2012-10-24 - 2012-10-25.
  • Thorsen, Kristian; Drengstig, Tormod; Ruoff, Peter (2012). Modeling and simulation of intestinal nutrient uptake. The International Society for Systems Biology; 2012-08-19 - 2012-08-23.