מוכנים לקפוץ אל העתיד?

סטודנטיות וסטודנטים של הפקולטה להנדסה אוניברסיטת תל אביב מוזמנים לפתוח את השנה החדשה באירוע שעוד לא נראה כמותו בשיתוף התעשייה האווירית, ארגון עמיתי התעשייה וועד הנדסה
 

מחכים לכם ביום שלישי 5.11.2019 בין השעות 12:00-14:00 בשדרת הדקלים 

(The talk will be given in English)

Speaker:     Dr. Kumar Vijay Mishra
                     ARL (United States Army Research Laboratory) & University of Iowa.

Wednesday, November 6^th, 2019
15:00 - 16:00

Room 011, Kitot Bldg., Faculty of Engineering

Towards mm-Wave radar and communications: Rejoining cousins that were never removed

Abstract

Synergistic design of communications and radar systems with common spectral and hardware resources is heralding a new era of efficiently utilizing a limited radio-frequency (RF) spectrum. Such a joint radar communications (JRC) model has advantages of low cost, compact size, less power consumption, spectrum sharing, improved performance, and safety due to enhanced information sharing. Today, millimeter-wave (mm-Wave) communications have emerged as the preferred technology for short-distance wireless links because they provide transmission bandwidth that is several gigahertz wide. This band is also promising for short-range automotive radar applications, which benefit from the high-range resolution arising from large transmit signal bandwidths. Major challenges are joint waveform design and performance criteria that would optimally trade-off between communications and radar functionalities. In this talk, we present our recent works on mm-Wave JRC, with a focus on automotive applications.

Short Bio
Dr. Kumar Vijay Mishra obtained a Ph.D. in electrical engineering and M.S. in mathematics from The University of Iowa in 2015, and M.S. in electrical engineering from Colorado State University in 2012, while working on NASA’s Global Precipitation Mission Ground Validation (GPM-GV) weather radars. He received his B. Tech. summa cum laude (Gold Medal, Honors) in electronics and communication engineering from the National Institute of Technology, Hamirpur (NITH), India in 2003. He is currently U. S. National Academies Diamond Distinguished Fellow at United States Army Research Laboratory (ARL), Adelphi; Technical Adviser to Singapore-based automotive radar start-up Hertzwell; and honorary Research Fellow at SnT - Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg. Previously, he had research appointments at Electronics and Radar Development Establishment (LRDE), Defence Research and Development Organisation (DRDO) Bengaluru; IIHR - Hydroscience & Engineering, Iowa City, IA; Mitsubishi Electric Research Labs, Cambridge, MA; Qualcomm, San Jose; and Technion - Israel Institute of Technology. He is the recipient of Royal Meteorological Society Quarterly Journal Editors Prize (2017), Viterbi Postdoctoral Fellowship (2015, 2016), Lady Davis Postdoctoral Fellowship (2017), Technion EE Excellent Undergraduate Adviser Award (2017), DRDO LRDE Scientist of the Year Award (2006), NITH Director’s Gold Medal (2003), and NITH Best Student Award (2003). His research interests include radar systems, signal processing, remote sensing, and electromagnetics.‏

(The talk will be given in English)

Speaker:     Prof. Michael Margaliot
                     EE, Tel Aviv University

Monday, November 25^th, 2019
15:00 - 16:00

Room 011, Kitot Bldg., Faculty of Engineering

A Generalization of Linear Positive Systems with Applications to Nonlinear Systems: Invariant Sets and the Poincare–Bendixon Property
Abstract

The dynamics of linear positive systems maps the positive orthant to itself. In other words, it maps a set of vectors with zero sign variations to itself. This raises the following question: what linear systems map the set of vectors with k sign variations to itself? We address this question using tools from the theory of cooperative dynamical systems and the theory of totally positive matrices. This yields a generalization of positive linear systems called kpositive linear systems, that reduces to positive systems for k = 1. We describe applications of this new type of systems to the analysis of nonlinear dynamical systems. In particular, we show that such systems admit certain explicit invariant sets, and for the case k = 2 establish the Poincare-Bendixon property for certain trajectories. 
This is joint work with Eyal Weiss.

Short Bio
Michael Margaliot received the BSc (cum laude) and MSc degrees in Elec. Eng. from the Technion—Israel Institute of Technology in 1992 and 1995, respectively, and the PhD degree (summa cum laude) from Tel Aviv University in 1999. He was a post-doctoral fellow in the Dept. of Theoretical Math. at the Weizmann Institute of Science. In 2000, he joined the Dept. of Elec. Eng.–Systems, Tel Aviv University, where he is currently a Professor. His research interests include the stability analysis of differential inclusions and switched systems, optimal control theory, computation with words, Boolean control networks, contraction theory, and systems biology. He served as an Associate Editor for IEEE Transactions on Automatic Control during 2015–2017.‏

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SCHOOL OF MECHANICAL ENGINEERING SEMINAR
Wednesday, December 4, 2019 at 14:00
Wolfson Building of Mechanical Engineering, Room 206

Active Matter: `active thermodynamics’ and the dynamics of biopolymer gels

Tomer Markovich
CTBP, Rice University and DAMTP, University of Cambridge

Active materials are composed of many components that can convert energy from its environment (usually in the form of chemical energy) into directed mechanical motion. Time reversal symmetry is thus locally broken, leading to a variety of novel phenomena such as motility induced phase separation, reversal of the Ostwald process and flocking. Examples of active matter are abundant and range from living matter such as bacteria, actomyosin networks and bird flocks to Janus particles, colloidal rollers and macroscale driven chiral rods. Nevertheless, in many cases experiments on active materials exhibit equilibrium like properties (e.g., sedimentation of bacteria). In the first part of the talk I will try to answer the important question: how do we know a system is `active’? And if it is, can we have generic observables as in equilibrium thermodynamics? Can we measure how far it is from equilibrium? In the second part of the talk I will focus on examples of activity in biopolymer gels, such as the cytoskeleton of living cells. I will show some of the effects of active motors with emphasis on chiral motors. The latter does not have a unique hydrodynamic description, which one can utilize to gain access to the microscopic details of the complex motors using macroscopic measurements. I will also discuss non-motor activity and demonstrate how it can result in contractility, e.g., in the process of cell division.

Bio
Dr. Tomer Markovich is Postdoctoral Research Associate in the Center for Theoretical and Biological Physics (CTBP) at Rice University working with Professor Fred MacKintosh. He obtained his PhD in Physics at Tel Aviv University under the supervision of Professor David Andelman in 2017. Prior to his current appointment, Tomer was a Blavtanik Postdoctoral Fellow in the Department of Applied Mathematics and Theoretical Physics (DAMTP) at the University of Cambridge working with Professor Michael Cates.