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Mathematical Description and Modelling of Phenomena and Dependences in Materials Science
Date: Wednesday, 20th May 2009
Time: 14:30
Place: Room 216 in Mathematics and Physics building
By Professor Jan Kohout
University of Defence, Brno, Czech Republic
Abstract: Only a part of phenomena and dependences in materials science can be described by the theoretically derived equations based on physical theories. In many cases only suitable phenomenological or semi-phenomenological relations can be used. Thoughtful choice of these relations respecting the known behaviour of the materials in extreme conditions and exploiting various physical similarities can lead to a substantial better description than the use of a randomly chosen relation. This approach makes use of fatigue and kinetic curves of phase and degradation changes.
The best description is obtained when the interconnected phenomena are described by interdependent relations. This reflects itself in a common description of creep, stress relaxation and yield stress processes.
Biography: Professor Jan Kohout is the head of the Department of Mathematics and Physics, Faculty of Military Technology, University of Defence, Brno, Czech Republic. After completing his studies on solid state physics at Masaryk University in Brno he worked in two research institutes and three faculties in the boundary branch between physics of materials and materials science. During this period he studied mechanical behaviour of structural materials at fatigue and high temperature loading in order to determine the relations between mechanical properties and materials microstructure. His current research focuses on the mathematical description and modelling of phenomena and dependences in materials science in order to understand mutual interrelations.
The Department of Physics of the University of Malta is proud to host a public lecture by Professor Raymond Ellul on Friday the 29th of May 2009.
A 12 Year Study of Atmospheric Pollution in the Central Mediterranean
A Maltese - German Project, 1993 - 2009
By Professor Raymond Ellul
University of Malta
Date: Friday, 29th May 2009
Time: 19:00 - 20:00
Place: Main Hall of the Ministry for Gozo, St Francis Square, Victoria, Gozo.
Abstract: The measurement programme dating back to 1997 will be introduced. This will be followed by an overview of the formation of the Earth's atmosphere and its Energy balance, the Greenhouse effect together with the Climate predictions for 2010. The role of Earth's Ozone concentration as a result of pollution will be further investigated and the Mediterranean region's pollution problems will be discussed. The measurements made by our group will be presented and summarised and our plans for the future as a Global Atmospheric Watch (GAW) station will be illustrated.
Attendance is free of charge and open to the public.
Download Program
Dark matter candidates and subsequent measurements
Details to be announced
By Dr Kristian Zarb Adami
University of Malta
Abstract: In the era of the Big Physics experiments the race is on to discover and measure possible dark matter candidates. In this talk we review the latest experiments including the Large Hadron Collider, the Square Kilometre Array and various other projects which will come online over the next decades. We will review the new regions of physics that will be probed with these experiments and we end the discussion with an exposition of the theoretical predictions.
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