A Citizen of the World
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 we finish. 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.
Background
Formative Years
Early 70sBorn in Greece at the height of the military junta. The history of that dark period influenced me, as I was growing up, to become a humanist and a vocal proponent of human rights. I was never satisfied with 'just because' answers; always questioning why. Clearly, a scientist in the making.
High School
Great 80sI was fortunate to attend school with French influences, to experience a third language and the culture of a great nation. Of course, that was the time of great music too!
Bachelor Degree
Early 90sI was able to fulfill the dream of mine to study in a country that played a pivotal role in advancing diverse scientific areas, such as, Electromagnetism, Cosmology, Nuclear Physics, to name but a few. After hard work, I got a First Class degree in Astrophysics, something that I will always be proud of.
Ph.D.
Mid 90sGotten more serious with research while delaying getting a proper job. Great fun getting into hypervelocity impact and light flashes. Did you know that our Moon was formed after a high impact event with Earth?
More Fun Research
Late 90s - Early 2000sWhat if you can combine a bit more money with great fun in research at a top university performing high velocity impact experiments? Well, that is exactly what I was doing for several years.
New World
Mid 2000sCrossing the Pond and starting a new life. New adventures ahead and a nuclear energy related job. I moved around the Ottawa Valley and GTA, and was fortunate enough to visit both sides of Niagara Falls; a natural wonder I always wanted to see.
Yet Another Change
Early 2010sI have been living in Ottawa for a while now. I have also gotten into photography more seriously. In any case, after having lived in three countries, perhaps, I can consider myself a citizen of the world.
In a Nutshell
Scientist
I have always been fascinated by nature's stunning beauty. I have a First Class degree in Astrophysics & a Ph.D. in Space Sciences. I also have experience with high velocity impact physics. Currently, I am involved with nuclear energy.
Photographer
My photographic interests include landscapes, cityscapes, nightscapes, seascapes & portraiture. Photography is an adventure after all; a quest to capture unique moments in time though a camera lens. Photography is how I wind down.
Web Developer
My web design adventures started as early as 1998 with a text editor. I have experimented with Drupal, HTML, CSS, Javascript, PHP/MySQL and lately, WordPress. I have also developed a shock physics site for 1-D impact calculations in PHP.
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 (103-105 s-1) 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.
- Tsembelis, S. Eom, N. Christodoulou, M. Pandey and J. Jin, “A Case Study on the Normality of Monte-Carlo Simulation Results”, Proceedings of the ASME 2016 Pressure Vessels and Piping Conference, Vancouver, BC, Canada, July 17-21, 2016.
- Tsembelis, S. Eom, J. Jin and C. Cole, “Effects of Non-Normal Input Distributions & Sampling Region on Monte-Carlo Results”, Proceedings of the ASME 2018 Pressure Vessels and Piping Conference, Prague, Czech Republic, July 15-20, 2018.
Photography
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