Presentations and publications for ICF
Presentations and publications at the Annual Symposium of the Icelandic Concrete Federation
(in Icelandic):
2016 Vibration free stiff concrete, VFC
2015 Innovation in concrete
2014 BREEAM and concrete (no publication)
2013 Durability of concrete (no publication)
2012 Carbon footprint of concrete (no publication)
2011 Crack formation in concrete (no publication)
2010 Chemical admixture for concrete (no publication)
2009 Eco-SCC
2008 High Performance concrete
2007 Real innovation in concrete technology in Iceland
2006 Environmental friendly concrete
2005 Cement – How will it change in the nearest future
2004 New generation of structural fibers for concrete
2003 Introduction to the SCC Iceland 2003
2001 Introduction to Rheology
2000 Bridge repair, using SCC (Co-author: Indriði Níelsson)
1999 SCC – The concrete of the 21. century (Co-authors: Indriði Níelsson, Haukur Helgason)
1998 New generation dispersing admixtures
1996 Wearing resistance of concrete in roads
1995 Plastic shrinkage in concrete
1994 New materials and technology in concrete
1992 High strength concrete
Publications and papers
1. Wallevik, O.H., Gjorv, O.E., "Rheology of Fresh Concrete", Advances in Cement Manufacture and Use, Eng. Found. Conf. Potosi, MI 133, 1988, pp. 133-134.
2. Wallevik, O.H., Gjorv, O.E., Modification of the 2-Point Workability Apparatus, Magazine of Concrete Research, 42 (152), September, 1990, pp. 135-142 (reviewed).
3. Wallevik, O. H., Gjørv, O. E., “Development of a Coaxial Cylinder Viscometer for Fresh Concrete”, Properties of Fresh Concrete Proceedings of the Rilem Colloquium. Chapman & Hall. Hanover, October, 1990, pp. 213-224.
4. Wallevik, O., Gjorv, O., Saasen A., Effect of Filler Materials on Rheological Properties of Fresh Concrete, ACI Material Journal 524, 1995 (reviewed).
5. Wallevik, O., Iversen, K., Rheological approach in mix-design of very high strength concrete. Paper presented at ConChem Int. Congress 1995 in Brüssel.
6. Wallevik, O., Kjellsen, K.O., A Microstructural and Microanlytical Study of High Strength Concrete with Porous Aggregates, Proceedings: Utilization of High Strength/High Performance Concrete, Paris, May, 1996, pp. 471-478 (reviewed).
7. Wallevik, O., Simmerman, T., Effect of Some Plasticisers on the Rheological Behavior of Fresh Cement Paste, Proceedings: Production Methods and Workability of Concrete, E & FN Spon, Glasgow, June, 1996, pp. 307-318.0
8. Wallevik, O., Jankovik, D., Rheological Measurements on Fresh Mortar with a New Measurement System on the BML Viscometer. Nordic Rheology Conference, Stavanger, June, 1996, p. 4.
9. Nehdi, M., Wallevik, O.H., Saasen, A., Gjorv, O.E., “Effect of filler materials on the rheological properties of fresh concrete”, ACI Materials Journal 93 (4), JUL-AUG, 1996, pp. 396-398 (reviewed).
10. Wallevik, O., “The Use of BML Viscometer for Quality Control of Concrete,” Concrete Research, Nordic Concrete Research, Espoo, Finland, 1996, pp. 235 to 236.
11. Kjellsen, K.O., Wallevik, O.H., A Study of the transition interfacial zone of high-performance concrete. ”Nordic Concrete Research”, Aug 1996, Espoo, Finland.
12. Wallevik, O.H., Effect Thickening Agents on the Rheology of Fresh Mortar, Transactions of Nordic Rheology Society, Vol. 5, 1997, pp. 112-115.
13. Kjellsen, K.O., Detwiler, R.J., Wallevik, O.H., Microstructural Examination of an 8 Years Old Silica Fume Concrete Deck Overlay, 9th Int. Conference on Cement Microscopy, Cincinnati, USA, April, 1997, pp. 56-64.
14. Kjellsen, K.O., Wallevik, O.H., Fjallberg, L., Microstructure and Microchemistry of the Paste-Aggregate Interface Transition Zone of High-Performance Concrete, paper submitted to “Journal of Advances in Cement Research, 1998, 10 no. 1, pp. 33-40 (reviewed).
15. Wallevik, O., “Effect of high grade lignosulfonate based material for formulation of superplasticizer”, Borregaard Symposium on Workability and Workability Retention, Sarpsborg, September 1998, p. 7.
16. Wallevik, O., “A brief introduction to the Hattori-Izumi theory”, Borregaard Sym¬posium on Workability and Workability Retention, Sarpsborg, September 1998, p. 9.
17. Wallevik, O., Iversen, K., “Rheological approach in mix design of very high strength concrete”, Borregaard Symposium on Workability and Workability Retention, Sarpsborg, September 1998, p. 13.
18. Wallevik, O., “Practical description of the rheology of fresh concrete, Borregaard Symposium on Workability and Workability Retention, Sarpsborg, September 1998, p. 20.
19. Wallevik, O., Nielsson, I., “A rheological approach in mix design of self compacting concrete, Borregaard Symposium on Workability and Workability Retention Sarpsborg, September 1998, p. 20.
20. Wallevik, O., “Introduction to Rheology”, Borregaard Symposium on Workability and Workability Retention, Sarpsborg, September 1998, p. 23.
21. Wallevik, J.E., Wallevik, O.H., Effect of eccentricity and tilting in coaxial cylinder viscometer when testing cement paste, Nordic Concrete Research, Oslo, August, 1998. pp. 144-152 (reviewed).
22. Kjellsen, K., Wallevik, O., Hallgren, M., “On the Compressive Strength Development of High Performance Concrete and Paste – Effect of Silica Fume”, Material and Structures, Vol. 32, January-February 1999, pp 63-69 (reviewed).
23. Wallevik. O., Nielsson, I., “Self Compacting Concrete – A Rheological Approach”, International Workshop on SCC, Kochi, Japan {JSCE Concrete Engineering Series no. 30}, August, 1998, pp. 136-159.
24. Nielsson, I., Wallevik, O, "Mix Design of Self Compacting Concrete for Bridge Repair" NCR 1999, Reykjavik, August 1999, p. 3.
25. Wallevik, O., "Some Aspects of Rheology of Fresh Concrete", keynote lectures, NCR 1999, Reykjavik, August 1999, p. 3.
26. Guðmundsson, G., Wallevik, O., "Concrete in an Aggressive Environment", NCR 1999, Reykjavik, August 1999, p. 3.
27. Wallevik, O.H., Thorvaldsson, J.I., "Nordic Concrete Research (NCR) on the Internet", NCR 1999, Reykjavik, August 1999, p. 4.
28. Wallevik, O.H., Nielsson, I., Thordarsson, B.J., “Air Entrainment as a Measure to Reduce Density of High Performance Light Weight Aggregate Concrete”, Int. Conference on LWAC, Kristjansand, June, 2000, p. 19.
29. Wallevik, O.H., Nielsson, I., Thordarsson, B.J., “Some Aspects on Freeze and Thaw Durability of High Performance Natural Light Weight Aggregate Concrete”, Int. Conference on LWAC, Kristjansand, June, 2000, p. 11.
30. Wallevik, O.H., “A Brief Introduction to the Hattori-Izumi Coagulation Rate Theory and Explanation of Workability Loss”, 6th Canmet/ACI International Conference on Superplasticizers …, Sup. papers, Nice, October, 2000, pp. 501-518.
31. Kjellsen, K., Hallgren, M., Wallevik, O., “Fracture Mechanical Properties of High Performance Concrete – Influence of Silica Fume”, Material et Structures, Vol. 33, November 2000, pp 552-558. (reviewed)
32. Geiker, M.R., Brandla, M., Thranea, L.N., Bager, D.B., Wallevik, O., “On the effect of measuring procedure on the apparent rheological properties of self-compacting concrete”, Cement and Concrete Research, Volume 32, Issue 11, November 2002, pp. 1791-1795, (reviewed).
33. Wallevik, O.H., “Practical description of rheology of SCC”, SF Day at the Our World in Concrete, Singapore, August, 2002, p. 42.
34. Berke, N.S., Cornman, C.R. Jeknavorian, A.A., Knithe, G.F., Wallevik, O., “The Effective use of Superplasticizers and Viscosity-Modifing Agents in Self-Consolidating Concrete”, First North American Conference on the Design and Use of SCC, Chicago, November 2002, pp. 173-178.
35. Guðmundsson, G., Wallevik, O., "Concrete in an Aggressive Environment", Int. Rilem Workshop, Frost Damage in Concrete, Minnesota, June, 1999, (Rilem Proceedings, PRO 25, 2002) pp. 87-101.
36. Wallevik, O.H., “Some Aspects of Rheology of Cement Based Particle Suspensions Such as Fresh Concrete”, ICCC Congress, Durban, May, 2003, p.5.
37. Wallevik, O.H., “Rheology of Coarse Particle Suspension Such as Fresh Concrete”, Symposium on Industrial Rheology, Wales, June, 2005, p. 10.
38. Wallevik, O.H., “Rheology – A Scientific Approach to Develop Self-Compacting Concrete”, 3rd Int. Symposium on SCC, Rilem, Reykjavik, August, 2003, pp. 23-31.
39. Nielsson, I., Wallevik, O.H., “Mix Design of HS-SCC and Practical Application”, 3rd Int. Symposium on SCC, Rilem, Reykjavik, August, 2003, pp. 506-513.
40. Nielsson, I., Wallevik, O.H., “Rheological Evaluation of some Empirical Test Methods – Preliminary Results”, 3rd Int. Symposium on SCC, Rilem, Reykjavik, August, 2003, pp. 59-68.
41. Wallevik, O.H., “Role of Rheology in Developing New Breed of Concrete and Concrete Techniques”, Role of Concrete in Sustainable Development, Thomas Telford, September, 2003, Dundee, pp. 441-450.
42. Fidjestol, P., Wallevik, O., Nielsson, I., Holton, I., “Topic Concrete: Rationale, “Development and Laboratory Performance of an Environmentally Friendly Concrete for Piling Application”, 3rd Int. Symposium on SCC, Rilem, Reykjavik, August, 2003, pp. 920-931.
43. Wallevik, O.H., Nielsson, I., Editors, Rilem Proceedings no. 33, 3rd Int. Symposium on SCC, Rilem, Reykjavik, August, 2003, p. 1028.
44. Godøy, H., Svindland, A., Saasen, A., Wallevik, O., “Experimental analysis of yield stress in high solids concentration sand slurries used in temporary well abandonement operations”, Transactions of Nordic Rheology Society, Vol. 12, 2004, pp. 81-84.
45. Svavarsson, H., Wallevik, O.H., “Geothermal well cementing: the effect of temperature and time on workability loss”, Transactions of Nordic Rheology Society, Vol. 12, 2004, pp. 123-126.
46. Wallevik, O.H., “Rheology of Coarse Particle Suspension Such As Fresh Concrete”, Conference on Industrial Rheology, Chester, U.K., 2004, p. 10.
47. Wallevik, O.H., “Why is Self Compacting Concrete so Different in Different Countries?”, ICCX Congress, Berlin, January, 2006, p. 8.
48. Wallevik, O.H., “Various Way of Making SCC”, 31st OWIC, Singapore, August, 2006, p.11.
49. Wallevik, O.H., “Rheology – A New Dimension in Concrete Technology”, iBausil, Germany, September, 2006, pp. 2_1417-2_1430.
50. Kubens, S., Wallevik, O.H., “Interaction of cement and admixtures – The influence of cement deliveries on rheological properties”, iBausil,, Germany, September, 2006, pp. 1_0679-1_0686.
51. Krage, G., Wallevik, O.H., “FR-SCC for bridge repair – A case study”, iBausil, Germany, September, 2006, pp. 2_0159-2_169.
52. Wallevik, O.H., “Use of Rheology to Develop and Optimize Self Compacting Concrete”, NZ Concrete Society Conference October, Christchurch, 2006, p. 12.
53. G. Heirman, L. Vandewalle, D.V. emert, O., Wallevik, N., Cauberg, “Solving the Couette Inverse Problem for Herschel-Bulkley Fluids by Means of the Integration Method as an Application to Belgian Self-Compacting Concrete (SCC): Is it Possible?”, Rilem, Quebec, September, 2006, p. 15 (reviewed).
54. Wallevik O.H., Kubens S., Pálsson H., Helgason B., Grétarsdóttir S., "Rheological and structural investigations on cement slurries", in Annual Transactions of the Nordic Rheology Society, Vol. 15, Stavanger, 2007, pp.43-48.
55. Oesterheld, S., Wallevik, O. H., “Effect of Stabilizers on Thixotropy and Reduction of Formwork Pressure”, 5th Internatioanl Rilem Symposium on Self-Compacting Concrete, Rilem, Ghent, Belgium, 3-5 September 2007, pp. 497-502.
56. Wallevik O.H., Kubens S., Müller F., "Influence of cement-admixture interaction on the stability of production properties of SCC", 5th International RILEM Symposium on SCC, Ghent, Belgium, 2007, pp.211-216.
57. Krage, G., Wallevik, O.H., “Rheology of synthetic-fiber reinforced SCC”, 5th Int. RILEM Symposium on SCC, Ghent, Belgium, Bagneux, pp. 347-352.
58. Wallevik, O., Sandberg, P., Kjellsen, K., Svavarsson, H., Kubens, S., “The effect of free lime on the hydration kinetics and rheology of cement mortar”, 12th ICCC congress, Montreal, July, 2007, p. 10. (reviewed)
59. Heirman, G., Vandewalle, L., Van Gemert, D., Wallevik, O., “Integration approach of the Couette inverse problem of powder type self-compacting concrete in a wide-gap concentric cylinder rheometer”, Journal of Non-Newtonian Fluid Mechanics, 150, 2007 pp. 93–103 (reviewed).
60. Kubens, K., Peng, H., Oesterheld, S., Wallevik, O.H., “Some effects of silica fume on variations in rheology of mortar due to production date of cement”, The Nordic Rheology Conference (Volume 16), Copenhagen, Denmark, August 27 – 29, 2008.
61. Oesterheld, S., Müller, F., Wallevik, O.H., “The influence of workability loss and thixotropy on formwork pressure in self-compacting concrete containing stabilizers“, 3rd North America Conference on Self-Compacting Concrete, USA, October, 2008, p. 7 (reviewed).
62. Müller, F., Wallevik, O.H., “Benfits of filler material on rheology in Eco-SCC”, 3rd North America Conference on Self-Compacting Concrete, USA, October, 2008, p. 6 (reviewed).
63. Krage, G., Wallevik, O.H., “Fiber reinforced self-compacting concrete with high wear resistance”, 3rd North America Conference on Self-Compacting Concrete, USA, October, 2008, p. 5 (reviewed).
64. Kubens, S., Wallevik, O.H. “Cement-admixture interaction – The effect of different cement deliveries on rheology, workability and hydration of mortar and SCC“, 3rd North America Conference on Self-Compacting Concrete, USA, October, 2008, p. 6 (reviewed).
65. Wallevik, O.H., Hjartarson, B., ”A novel field instrument to measure rheological properties of self-compacting concrete”, 3rd North America Conference on Self-Compacting Concrete, USA, October, 2008, p. 6 (reviewed).
66. Wallevik, O.H., Kubens S.: Influence of cement-admixture interaction on the rheology of mortar and concrete. BFT International - Concrete Plant + Precast Technology, Bauverlag Gütersloh, 05/2008, Volume 74, pp. 30-38.
67. Wallevik, O.H., F.V. Mueller, and B. Hjartarson, “Eco-SCC, an environmental and economical alternative”, ICCX Oceania 2009, Sydney, 2009, pp. 16-20.
68. Mueller, F.V., Wallevik, O.H., “Effect of Maximum Aggregate Size in Air-entrained Eco-SCC”, Rilem SCC-China, Beijing, 2009, p. 7 (reviewed).
69. Heirman, G., Vandewalle, L., Van Gemert, D., Wallevik, O., “Influence of plug flow when testing shear thickening powder type self-compacting concrete in a wide-gap concentric cylinder rheometer”, Rilem Conference – Rheology of cement suspension such as fresh concrete, August, Iceland, 2009, pp. 283-290.
70. Oesterheld, S., Wallevik, J.E., Wallevik, O.H., “Use of computational rheology to analyse the effect of stabilizer in cement paste”, Rilem Conference – Rheology of cement suspension such as fresh concrete, August, Iceland, 2009, pp. 163-170.
71. Kubens, S., Wallevik, O.H., Puterman, M., “The rheological properties of polymer containing cementitious mixtures (PCC)”, Rilem Conference – Rheology of cement suspension such as fresh concrete, August, Iceland, 2009, p. 8.
72. Kristjánsson, T.I., Wallevik, O.H., Krage, G., Nielsson, I., “Mix design for fiber reinforced self compacting concrete”, Rilem Conference – Rheology of cement suspension such as fresh concrete, August, Iceland, 2009, p. 4.
73. Kubens, S., Katz, A., Bentur, A., Wallevik, O.H., “Effect of variation during routine cement production on the rheology of mortar, iBausil, Germany, September, 2009, p. 6.
74. Oesterheld, S., Wallevik, J.E., Wallevik, O.H., “Analyzing the effect of stabilizers in cement paste by computational rheology”, iBausil, Germany, September, 2009, p. 6.
75. Wallevik, O.H., F.V. Mueller, and B. Hjartarson, Kubens, S., “The green alternative of self compacting concrete; Eco-SCC”, iBausil, Germany, September, 2009, HV 2.29, p. 12 (invited).
76. Mueller, F.V., Wallevik, O.H., Robustness of very low binder, self compacting concrete: Eco-SCC”, Rilem Conference – Rheology of cement suspension such as fresh concrete, August, Iceland, 2009, p. 121.
77. Krage, G., Wallevik, O.H., “Effect of maximum aggregate size on plastic viscosity of fiber reinforced self-compacting concrete”, Rilem Conference – Rheology of cement suspension such as fresh concrete, August, Iceland, 2009, p. 6.
78. Wallevik, O.H., Kubens, S., Oesterheld, S., Editors, Rilem Proceedings no. 68, 3rd Int. Symposium on Rheology of Cement Suspensions such as Fresh Concrete, Rilem, Reykjavik, August, 2009, p. 352.
79. Wallevik, O.H., F.V. Mueller, and B. Hjartarson, “Rheology of self compacting concrete and Eco-SCC”, High Performance Concrete Conference, Abu Dhabi, December, 2009, p. 14 (invited).
80. Kubens, S., Wallevik, O.H. og Puterman, M. “The effect of polymer emulsions on the rheological properties of PCC mixtures”, ICPIC 2010 - International Congress Polymers in Concrete 2010, Madeira Islands, Portugal, February, 2010.
81. Wallevik, O.H., “Rheology as tool to improve concrete quality“, 9th Int. Conference on Cement and Concrete, China, Jinan, May 2010, Jinan, May, 2010, p. 11 (invited).
82. Oesterheld, S., Mueller, F.V., Kubens, S., Wallevik, O.H., “Rheological evaluation of ingredients for SCC”, 6th Int. Symp. on Self Compacting Concrete & 4th North American Conference on SCC, Montreal, September, 2010, p.7.
83. Kubens, S., Wallevik, O.H., “Self compacting mortar for concrete furniture and design objects”, 6th Int. Symp. on Self Compacting Concrete & 4th North American Conference on SCC, Montreal, September, 2010, p.7.
84. Mueller, F.V., Wallevik, O.H., “Effect of limestone filler addition in Eco-SCC”, 6th Int. Symp. on Self Compacting Concrete & 4th North American Conference on SCC, Montreal, September, 2010, p.7.
85. Kristjansson, Th.I., Wallevik, O.H., Frost Resistance of Non Air Entrained Self Compacting Concrete“, 6th Int. Symp. on Self Compacting Concrete & 4th North American Conference on SCC, Montreal, September, 2010, p.7.
86. Kubens, S., Wallevik, O.H., Puterman, M., “The effect of polymer emulsions on the rheological properties of PCC mixtures”, submitted xx, (reviewed)
87. Wallevik, O.H., Wallevik, J.E., “Rheology as a tool in concrete science: the use of rheographs and workability boxes”, Cement and Concrete Research, Volume 41, Issue 12, 2011, pp. 1279-1288 (reviewed)
88. Khrapko, M., Wallevik, O.H., Editors, 9th International Symposium of High Performance Concrete, Rotorua, New Zealand, August, 2011, p. 851. (reviewed)
89. Wallevik, O.H., “Rheology – My way of life”, Our World in Concrete and Structure (OW11), Singapore, August, 2011, pp. 1-13. (invited)
90. Kristjansson, Th.I., Wallevik, O.H., “chloride penetration and rheological measurements of high performance concrete” Our World in Concrete and Structure (OW11), Singapore, August, 2011, pp. 91-94.
91. Wallevik, S.O., Alexandersson, K.F., Gudmundsson, J.G., Th.I., Kristjansson, Wallevik, O.H., “Alkali activated volcanic ash: steps towards a alkali activated self compacting concrete ” Our World in Concrete and Structure (OW11), Singapore, August, 2011, pp. 109-110.
92. Jonsson, H., Morton, R., Wallevik, O.H., “Eco-crete with flaky aggregates”, Our World in Concrete and Structure (OW11), Singapore, August, 2011, pp. 65-68.
93. Gudmundsson, J.G., Jonsson, G., Jonsson, H., Wallevik, O.H., Khayat, K., “Long-term creep of concrete made with porous basaltic aggregate”, Our World in Concrete and Structure (OW11), Singapore, August, 2011, pp. 69-72.
94. Mueller, F.V., Wallevik, O.H., “particle packing by gyratory intensive compaction as tool to optimize the aggregate gradation of low binder SCC, Eco-SCC” Our World in Concrete and Structure (OW11), Singapore, August, 2011, pp. 97-100.
95. Wallevik, O.H., “The importance of rate of shear in concrete rheology (EA)”, Nordic Concrete Rheology Workshop, Trondheim, October, 2011, pp. 43-45. (invited)
96. Feys, D., Wallevik, J.E., Yahia, A., Khayat, K.H., Wallevik, O.H., “Extension of the Reiner-Riwlin Equation for Retrieving Modified Bingham Parameters Measured in Coaxial Cylinders Rheometers”, accepted for publication to the Materials and Structures, Springer.
Miscellaneous
- Conference chairman of the 3rd Rilem International Symposium on Self-Compacting Concrete, Reykjavik, August, 2003.
- Chairman of the international scientific committee of the combined 4rd Rilem International Symposium and 2nd North America Conference on Self-Compacting Concrete, USA, 2005.
- Conference chairman of the Nordic Rheology Conference, August 1997.
- Conference chairman of the Nordic Rheology Conference, August 2004.
- Television program (18 min) on High Strength Concrete presented by RUV in 1994 (in Icelandic), English version made in 1995.
- Several videos like “The ConTec Group” (~6 min) 1992, SCC in Iceland (~12 min) 2001, IBRI RheoCenter (~4 min) 2002.
- Chairman of the Scientific Commission in Nordic Concrete Federation (1997-2000) and thereby editor for publication of review papers “Nordic Concrete Research” (OHW was responsible for the editorial work for a three year period). Also a member of commission ~1993-1996. Made/organized the Web version of the publication www.itn.is/ncr , see also reference Wallevik-Thorvaldsson (1999).
- Holder of a patent regarding coaxial cylinder viscometer. Has developed several types of viscometers, from a relatively small one for paste to mortar and a big one for fresh concrete. These devices are in about 40 laboratories all over the world.
- Sent in patent application in USA December 2003 on so-called Rheomixer. Accepted 2005, but then sent in again with some modification.
- Has had several positions within sport federations like; chairman for 6 years in Norwegian Traditional Karate Federation and 3 years as the national team manager. 8 years as the president of the Icelandic Karate Federation and total 7 years as the national team manager for Iceland (two periods). Gold medal/pin from the Icelandic Sport Federation (ISI) February 2006.
- Member of scientific committee of numerous conferences/symposiums
- Reviewer for several publishers having reviewed papers for journals like CCR, ACI Material Journal, etc.
- Advisor to ACBM (Center for Advanced Cement-Based Materials) from 2004. ACBM is collaboration between Northwestern University, University of Illinois, Purdue University, University of Michigan and NIST.
- Supervisor of five diploma works at NTNU, Trondheim and two Masters of Philosophy at Herriod Watt Uni., Scotland.
- Opponent at Jon H. Mork dr.Ing. thesis at NTNU, Trondheim, Norway, 1994.
- Opponent at Licentiate thesis of Peter Billberg, KTH, Stockholm, Sweden 1999.
- Opponent at Joseph Assaad PhD thesis at Uni. of Sherbrooke, Canada, 2004.
- Opponent at Dr.Techn. thesis of Peter Billberg, KTH, Stockholm, Sweden 2006.
- Opponent at PhD thesis of Ane Mette Kjellsen, DTU, Denmark, 2006.
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