A Citizen of the World

Scientist | Photographer | Web Developer

Who I am

Hello everybody and welcome to the 11th incarnation of my personal web space. Just like life itself, this site evolves to embrace change and new advances in IT. It started in 1998 with an early version of MS FrontPage and some basic HTML. After several full Drupal CMS versions it goes back where it started; simple HTML and CSS. However, the template is based on the Bootstrap Framework.

So who is KT? He was born in Greece at the height of the military junta and he remains a human rights proponent ever since. At the age of 19, he decided that the Hellenic boundaries could not contain his curiosity and thirst for knowledge. He went to the UK and got a First Class degree in astrophysics and a PhD in space sciences.

After all that, it was time to get a real job, well sort of, so he became a research associate at Cambridge University playing with materials at high stresses. What fun that was! However, even the entire European continent was not enough. It was time for another change.

Thus, during a cold autumn day of 2006, he crossed The Pond to keep people warm during cold nights. A new continent and the second largest country in the world are now his playing field. Welcome to the New World. I guess that makes me a citizen of the world after all!

These days, I have a new job and a house. In general, I am enjoying life in Ottawa and I picked up on a new hobby: Photography. After a few interesting and self-exploratory years, I finally start to accept what Fernando Pessoa wrote (and kindly translated by S):

Of all, three things remain: The certainty that we are always starting, the certainty that we have to continue, the certainty that we shall be interrupted before finishing. So, we should: make of the interruption a new path, of the fall a dance move, of the fear a ladder, of the dream a bridge, of the search an encounter...

In any case, feel free to get in touch with me for whatever reason. If you have comments on my photos or web sites, have an amazing job offer or just want to say hi, drop me a line or two. I am always happy to hear from old friends, colleagues or new and interesting people. After all, it is the people that come and go in our lives, friends or foes, the ones who help us and the ones who hurt us, familiar or strangers that make this journey so interesting.

True knowledge exists in knowing that you know nothing.

Publications

  • E.A. Taylor, K. Tsembelis, C.J. Hayhurst, L. Kay, and M.J. Burchell, “Hydrocode Modelling of Hypervelocity Impact of Brittle Materials: Depth of Penetration and Conchoidal Diameter”, Int. J. Imp. Engng, 23, pp. 895- 904, (1999).
  • J.C.F. Millett, K. Tsembelis and N.K. Bourne, “Longitudinal & Lateral Stress Measurements in shock-loaded Gabbro and Granite”, Journal of Applied Physics, 87(8), pp. 3678-3682, (2000).
  • M.J. Gifford, K. Tsembelis and J.E. Field, “Anomalous Detonation Velocities Following Type II Deflagration-to- Detonation Transitions in Pentaerythritol Tetranitrate” Journal of Applied Physics, 91, pp. 4995-5001, (2002).
  • A.M. Bragov, A.K. Lomunov, I.V. Sergeichev, W. Proud, K. Tsembelis and P. Church, “A Method for Determining the Main Mechanical Properties of Soft Soils at High Strain Rates (10 – 10 s ) and Load Amplitudes up to Several GPa”, Techn. Phys. Lett. (Transl. from Russian), 31, pp. 83-87, (2005).
  • J.P. Borg, D.J. Chapman, K. Tsembelis, W.G. Proud and J.R. Cogar, “Dynamic Compaction of Porous Silica Powder”, Journal of Applied Physics, 98(7), (2005).
  • I.A. Crawford, E.C. Baldwin, E.A. Taylor, J.A. Bailey and K. Tsembelis, “On the Survivability and Detectability of Terrestrial Meteorites on the Moon”, Astrobiology, 8(2), pp. 242-252, (2008).
  • A.M. Bragov, A.K. Lomunov, I.V. Sergeichev, K. Tsembelis and W. Proud, “Determination of physicomechanical properties of soft soils from medium to high strain rates”, Int. J. Imp. Engng, 35(9), pp. 967-976, (2008).
  • K. Tsembelis, M.J. Burchell, M.J. Cole and N. Margaritis, “Residual Temperature Measurements of Light Flash under Hypervelocity Impact”, Int. J. Imp. Engng, 35, pp. 1368-1373, (2008).
  • P.R. Ratcliff, M. Reber, M.J. Cole, T.W. Murphy, K. Tsembelis, “Velocity Thresholds for Impact Plasma Production”, Adv. Space Res, 20(8), pp. 1471-1476, (1997).
  • E.A. Taylor, C.J. Hayhurst, K. Tsembelis, “Hydrocode Modelling of Space Debris Hypervelocity Impact on Soda- Lime Glass Using the Johnson-Holmquist Brittle Material Model, Proceedings of the Second European Conference on Space Debris, ESOC, Darmstadt, Germany, 17-19 March 1997 (ESA SP-393, May 1997), pp. 449- 453, (1997).
  • J.C.F. Millett, K. Tsembelis, N.K. Bourne, J.E. Field, “The Shock Hugoniot of Two Igneous Rocks”, Proceedings of SHOCK99-APS 11 Topical Conference on Shock Compression of Condensed Matter, (Eds. MD Furnish, LC Chhabildas and RS Hixson) Salt Lake City, UT, June 27- July 2 199, pp 1247-1250.
  • K. Tsembelis, J.C.F. Millett, W.G. Proud, J.E. Field, “The Shock Hugoniot Properties of Cement Paste up to 5 GPa”, Proceedings of SHOCK99-APS 11 Topical Conference on Shock Compression of Condensed Matter, (Eds. MD Furnish, LC Chhabildas and RS Hixson) Salt Lake City, UT, June 27- July 2, 1999, pp. 1267-1270.
  • K. Tsembelis, W.G. Proud and J.E. Field, "The Dynamic Strength of Cement Paste under Shock Compression", Proceedings of SHOCK01-APS 12 Topical Conference on Shock Compression of Condensed Matter, (Eds. MD Furnish, NN Thadhani and Y Horie) Atlanta, 24-29 June 2001, pp. 1414-1417.
  • K. Tsembelis, W.G. Proud and J.E. Field, "The Principal Hugoniot and Dynamic Strength of Dolerite under Shock Compression", Proceedings of SHOCK01-APS 12 Topical Conference on Shock Compression of Condensed Matter, (Eds. MD Furnish, NN Thadhani and Y Horie) Atlanta, 24-29 June 2001, pp. 1385-1388.
  • K. Tsembelis, S.G. Grantham, W.G. Proud and J.E. Field, “Shock and Deformation Studies on Construction and Geological Materials, Proceedings of 12 International Scientific and Technological Conference: Transport and Building Infrastructure in Crisis Situations, organised by the Military Academy of Technology, Rynia, Poland, 10-12 June 2002, pp. 87-99.
  • K. Tsembelis, W.G. Proud, B.A.M. Vaughan and J.E. Field, “The Behaviour of Sand under Shock Wave Loading: Experiments and Simulations, Proceedings of 14 Technical Meeting organized by Association DYMAT, Sevilla, Spain 14-15 November, 2002, pp. 193-203.
  • K. Tsembelis, W. G. Proud, G.R. Willmott and D.L.A. Cross, “The Shock Hugoniot Properties of Cement Paste & Mortar up to 18 GPa”, Proceedings of SHOCK03-APS 13 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, Y.M. Gupta and J.W. Forbes), Portland, 20-25 July 2003, pp. 1488-1491.
  • S.J. Kingsbury, K. Tsembelis and W.G. Proud, “The Dynamic Properties of the Atlanta Stone Mountain Granite”, Proceedings of SHOCK03-APS 13 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, Y.M. Gupta and J.W. Forbes), Portland, 20-25 July 2003, pp. 1454-1457.
  • J.E. Field, K. Tsembelis, N.S. Brar, W.G. Proud, D.P. Dandekar and Z. Rosenberg, “Issues Related to Lateral Stress Measurements in Alumina Ceramics”, Proceedings of SHOCK03-APS 13 Topical Conference on Shock Compression of Condensed Matter, Portland, 20-25 July 2003, (Eds. M.D. Furnish, Y.M. Gupta and J.W. Forbes), Portland, 20-25 July 2003, pp. 1151-1154.
  • J.R. Cogar, N. Robinson, K. Tsembelis, W.G. Proud and D.L.A. Cross, “Shock Hugoniot Data for Low Density Silica Powder”, Proceedings of SHOCK03-APS 13 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, Y.M. Gupta and J.W. Forbes), Portland, 20-25 July 2003, pp. 1090-1093.
  • P.D. Church, A. Grief, K. Tsembelis, W.G. Proud and M.H. Murray, “Experiment and Simulation of the Lateral Gauge in Glass Targets”, Proceedings of SHOCK03-APS 13 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, Y.M. Gupta and J.W. Forbes), Portland, 20-25 July 2003, pp. 1147-1150.
  • R.E. Winter, G. Whiteman, G.S. Haining, D.A. Salisbury and K. Tsembelis, “Measurement of Equation of State of Silicone Elastomer”, Proceedings of SHOCK03-APS 13 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, Y.M. Gupta and J.W. Forbes), Portland, 20-25 July 2003, pp. 679-682.
  • T.D. Andrews, D.D. Radford and K. Tsembelis, “The response of a heavy tungsten alloy during shock loading”, Proceedings of SHOCK05-APS 14 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, M. Elert, T.P. Russell and C.T. White), Baltimore, MD, 31 July-5 August 2005, pp. 29-32.
  • D.D. Radford, K. Tsembelis and W.G. Proud, “The dynamic behavior of a filled glass”, Proceedings of SHOCK05-APS 14 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, M. Elert, T.P. Russell and C.T. White), Baltimore, MD, 31 July-5 August 2005, pp. 884-887.
  • K. Tsembelis and W.G. Proud, “The Dynamic Behavior of Microconcrete”, Proceedings of SHOCK05-APS 14 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, M. Elert, T.P. Russell and C.T. White), Baltimore, MD, 31 July-5 August 2005, pp. 1496-1499.
  • C.J. Chapman, K. Tsembelis and W.G. Proud, “The Behavior of Sand Under Shock-Loading Conditions”, Proceedings of SHOCK05-APS 14 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, M. Elert, T.P. Russell and C.T. White), Baltimore, MD, 31 July-5 August 2005, pp. 1445-1448.
  • D.L.A. Cross, C.J. Chapman, K. Tsembelis, W.G.Proud, J. Borg, A. Lloyd, J.R. Cogar and A. Ward, “Experimental Hugoniot Data of Porous Silica”, Proceedings of SHOCK05-APS 14 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, M. Elert, T.P. Russell and C.T. White), Baltimore, MD, 31 July-5 August 2005, pp. 61-64.
  • E.A. Taylor, K. Tsembelis, D.J. Chapman, W.G. Proud and C. Cockell, “The Dynamic Properties of Dry Yorkshire Sandstone”, Proceedings of SHOCK05-APS 14 Topical Conference on Shock Compression of Condensed Matter, (Eds. M.D. Furnish, M. Elert, T.P. Russell and C.T. White), Baltimore, MD, 31 July-5 August 2005, pp. 1488-1491.
  • K. Tsembelis, B. Ramsden, W.G. Proud and J. Borg, “CAV_KO: A Simple 1-D Lagrangian Hydrocode for MS Excel™ with Automatic Generation of x-t Diagrams”, Proceedings of SHOCK07-APS 15 Topical Conference on Shock Compression of Condensed Matter, Hawaii, 24-29 June 2007, ed. M. Elert, M.D. Furnish, R. Chau, N.C. Holmes and J. Nguyen, pp. 283-286, publ. American Institute of Physics, Melville, NY, pp. 283-286.
  • K. Miljkovic, E.A. Taylor, K. Tsembelis, W.G. Proud, C.S. Cockell and J.C. Zarnecki, “Impact Pressures Generated by Spherical Particle Hypervelocity Impact on Yorkshire Sandstone”, Proceedings of SHOCK07-APS 15 Topical Conference on Shock Compression of Condensed Matter, Hawaii, 24-29 June 2007, ed. M. Elert, M.D. Furnish, R. Chau, N.C. Holmes and J. Nguyen, pp. 283-286, publ. American Institute of Physics, Melville, NY, pp. 1049-1052.
  • D. Johnson, D. Chapman, K. Tsembelis and W. Proud, “The Response of Dry Limestone to Shock-Loading”, Proceedings of SHOCK07-APS 15 Topical Conference on Shock Compression of Condensed Matter, Hawaii, 24-29 June 2007, ed. M. Elert, M.D. Furnish, R. Chau, N.C. Holmes and J. Nguyen, pp. 283-286, publ. American Institute of Physics, Melville, NY, pp. 1387-1390.
  • K. Tsembelis and D.D. Radford, “The Properties of Concrete Subjected to Impact and Shock Loading”, Proceedings of 19th International Conference on Structural Mechanics in Reactor Technology, Toronto, ON, Canada, 12-17 August 2007.

Wisdom begins in wonder.

Contact Me

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