BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT DTSTART:20250309T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20251102T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20250525T141026Z UID:0854EA46-F7B7-4978-BFA3-C69A81471A56 DTSTART;TZID=America/New_York:20250403T113000 DTEND;TZID=America/New_York:20250403T123000 DESCRIPTION:[]\n\nThe analysis of electromagnetic problems with moving obje cts has many applications: RF Doppler radars\, astrophysics\, GPS\, electr omagnetic gyroscopes… This seminar proposes an original and thorough ana lysis of the behavior of electromagnetic waves in the presence of moving b odies by using the Finite Difference Time Domain (FDTD) method. Movements are implemented by changing positions of the objects at each time step\, t hrough the classical FDTD time loop. With this direct approach\, time is i mplicitly absolute and Voigt-Lorentz transformations are not implemented. This technique is suitable for non-relativistic speeds\, thus for most enc ountered electromagnetic problems\, especially in antennas and propagation domain. The numerical aspects that need to be considered are studied. The n\, different problems are investigated: moving plane wave source with res istors\, moving observation point\, moving inclined Partially Reflecting S urface (PRS)\, moving line source\, and moving metallic cylinder illuminat ed by a plane wave. The results\, in terms of Doppler frequency shift and changes in amplitude of the electric field\, are compared with those of sp ecial relativity which are considered as the references. Some aspects of s pecial relativity are present in the direct FDTD approach\, such as the in dependence of the velocity of electromagnetic wave propagation with the sp eed of the source and Lorentz local time (with a different physical interp retation). Some of the obtained results agree with special relativity. Oth er ones are different\, but the differences are negligible for non-relativ istic speeds. Techniques are proposed for the implementation of relativist ic effects. The results obtained with our analysis bring new physical insi ghts on the propagation of waves with moving bodies. In particular\, it is shown that the amplitude of the electric field for an ideal plane wave so urce does not increase with the speed of motion. Moreover\, for a moving s cattering metallic wire\, one can observe a phenomenon similar to shock wa ves. Other analyzed problems include complexes motions (multiple speeds\, acceleration\, rotation\, oscillation)\, moving airplanes\, Michelson-Morl ey interferometer\, Sagnac effect\, Heaviside faster-than-light analysis. Some quantum phenomena (Compton experiment\, blackbody radiation) are also studied…\n\nSpeaker(s): Professor Halim Boutayeb\n\nAgenda: \n11:30am - 12:15pm: Lecture by Professor Halim Boutayeb\n\n12:15pm - 12:30pm: Questi on and Answer (Q/A)\n\nRoom: RBCx Finance Quarter\, Bldg: Hub350\, 350 Leg get Dr\, Ottawa\, Ontario\, Canada\, K2K 3N1 LOCATION:Room: RBCx Finance Quarter\, Bldg: Hub350\, 350 Legget Dr\, Ottawa \, Ontario\, Canada\, K2K 3N1 ORGANIZER:danieljamesking3@gmail.com SEQUENCE:31 SUMMARY:Computational Electromagnetism with Moving Matter and Some Quantum Phenomena URL;VALUE=URI:https://events.vtools.ieee.org/m/469936 X-ALT-DESC:Description: <br /><p><img src="https://events.vtools.ieee.org/v tools_ui/media/display/15fae902-a423-4b6d-87f4-730cc5b196dd" alt="" width= "NaN" height="NaN"></p>\n<p>&nbsp\;</p>\n<p>The analysis of electromagneti c problems with moving objects has many applications: RF Doppler radars\, astrophysics\, GPS\, electromagnetic gyroscopes&hellip\; This seminar prop oses an original and thorough analysis of the behavior of electromagnetic waves in the presence of moving bodies by using the Finite Difference Time Domain (FDTD) method. Movements are implemented by changing positions of the objects at each time step\, through the classical FDTD time loop. With this direct approach\, time is implicitly absolute and Voigt-Lorentz tran sformations are not implemented. This technique is suitable for non-relati vistic speeds\, thus for most encountered electromagnetic problems\, espec ially in antennas and propagation domain. The numerical aspects that need to be considered are studied. Then\, different problems are investigated: moving plane wave source with resistors\, moving observation point\, movin g inclined Partially Reflecting Surface (PRS)\, moving line source\, and m oving metallic cylinder illuminated by a plane wave. The results\, in term s of Doppler frequency shift and changes in amplitude of the electric fiel d\, are compared with those of special relativity which are considered as the references. Some aspects of special relativity are present in the dire ct FDTD approach\, such as the independence of the velocity of electromagn etic wave propagation with the speed of the source and Lorentz local time (with a different physical interpretation). Some of the obtained results a gree with special relativity. Other ones are different\, but the differenc es are negligible for non-relativistic speeds. Techniques are proposed for the implementation of relativistic effects. The results obtained with our analysis bring new physical insights on the propagation of waves with mov ing bodies. In particular\, it is shown that the amplitude of the electric field for an ideal plane wave source does not increase with the speed of motion. Moreover\, for a moving scattering metallic wire\, one can observe a phenomenon similar to shock waves. Other analyzed problems include comp lexes motions (multiple speeds\, acceleration\, rotation\, oscillation)\, moving airplanes\, Michelson-Morley interferometer\, Sagnac effect\, Heavi side faster-than-light analysis. Some quantum phenomena (Compton experimen t\, blackbody radiation) are also studied&hellip\;</p>\n<p>&nbsp\;</p>\n<p >&nbsp\;</p><br /><br />Agenda: <br /><p>11:30am - 12:15pm: Lecture by Pro fessor Halim Boutayeb</p>\n<p>12:15pm -&nbsp\; 12:30pm: Question and Answe r (Q/A)</p> END:VEVENT END:VCALENDAR