Seminar by Gil Atar 19.11.15 at 10:00

You are invited to attend a lecture

By

 

Gil Atar

 Ph.D. student under the supervision of Professor Shlomo Ruschin and Dr. David Eger

 School of Electrical Engineering, Physical Electronics Department

Tel Aviv University

Yb/Al-Codoped Fused-Silica Waveguides for High-Power Applications

Thursday, 19 November 2015, at 10:00

Room 011, Room 011, Kitot Building

19 בנובמבר 2015, 10:00 
011 כיתות  
Seminar by Gil Atar 19.11.15 at 10:00

You are invited to attend a lecture

By

 

Gil Atar

 

 

Ph.D. student under the supervision of Professor Shlomo Ruschin and Dr. David Eger

 

School of Electrical Engineering, Physical Electronics Department

Tel Aviv University

 

Yb/Al-Codoped Fused-Silica Waveguides for High-Power Applications

 

A novel all-silica technology for fabricating on-chip optical devices for high-power applications based on large-core fused silica waveguides (WG) is introduced. We demonstrate a 20X20µm Yb/Al-codoped fused-silica WG with <0.5dB/cm loss and 0.6dB/cm gain, showing near-single-mode operation and low propagation loss despite significant sidewall-roughness. The first high-power optical pitch-converter is reported, bringing five WGs close proximity to enable simple fiber-coupling or coherent combining.

Fabrication methods include flame-hydrolysis, amorphous sintering, CO2 laser treatment (T>2000oC) and photolithography followed by dry etching. Special attention is given to sidewall roughness investigation using white-light interferometry and fluorescence streak imaging providing the first experimental observation of Marcuse's theory for modal distribution and loss dynamics in multimode WGs.

 

Thursday, 19 November 2015, at 10:00

Room 011, Room 011, Kitot Building

 

 

 

Material Sciences and Engineering: Departmental Seminar

Resonantly Tuned  Raman Scattering in MoS2

Dr.  Tsachi  Livneh

Department of Physics, Nuclear Research Center, Negev (NRCN)

02 בדצמבר 2015, 16:00 
Room 103, Engineering Class (Kitot) Building  

קבלת רובוטים ב"מעבדת סקרנות"

17 בנובמבר 2015, 10:00 
בניין וולפסון מעבדת CIM  

09:50               התכנסות

 

10:00-10:10    ברכות:

פרופ' יוסי רוזנווקס, דיקאן הפקולטה להנדסה ע"ש אייבי ואלדר פליישמן

 

10:10-11:30    דוברים:

·         הגב' טל שרייבר, נציגת Spin Master בישראל

·         מר אסף ברזילאי, מנכ"ל אקסטרים ריאליטי בישראל

·         דר' גורן גורדון, מחלקה להנדסת תעשייה, הפקולטה להנדסה ע"ש אייבי ואלדר פליישמן, אוניברסיטת ת"א

A Curious Mind in a Versatile Body""  ("מוח סקרן בגוף משתנה")

 

o        הצגת הרובוטים

Model-Based Design

15 בנובמבר 2015, 10:00 
Wolfson Building for Mechanical Engineering, room 206  
Model-Based Design

 

 

 

The IAP of the Engineering Faculty

Invites the faculty students and staff to attend the lecture on:

 

Model-Based Design

(the lecture is in English)

 

Sunday, 15 November, 10:00-12:00

Wolfson Building for Mechanical Engineering, room 206

 

 

The lecture:

The Lecture will deal with Model-Based Design – here is the entry in the Wikipedia:

https://en.wikipedia.org/wiki/Model-based_design

 

A brief video about the method:

http://www.mathworks.com/videos/model-based-design-with-matlab-and-simulink-69040.html?type=shadow&shadow_version=lightbox

 

 

 

The speaker:

Dr. Jon Friedman is a senior manager at MathWorks in Industry Marketing.  Dr. Friedman’s thesis work focused on the application of robust system identification and control theory.  After completing the PhD program at University of Michigan, Jon held research and product development positions in the commercial and defense sectors of the automotive and aerospace industries.  In addition experience deploying Model-Based Design and code generation at a Fortune 50 company, he has also been a program manager on multiple vehicle programs and led lean engineering and manufacturing projects.  At MathWorks, Jon leads a team of industry experts focused on helping leading companies in the AeroDef and Auto industries adopt Model-Based Design though sharing of best practices.  Dr. Friedman has authored over 50 papers and articles on modeling and Model-Based Design and also holds an MBA from the University of Michigan.

 

 

The IAP promotes the dialogue between the Faculty and the Industry, by providing the platform on which both can engage in areas such as R&D, students’ internship and recruitment, activation of knowledge transfer processes by Ramot and more.

EE Seminar: Sub-Nyquist Sampling: Bounds, Algorithms and Hardware

~~(The talk will be given in English)

Speaker:  Prof. Yonina Eldar
                      EE, Technion

Monday, November 16th, 2015
15:00 - 16:00
Room 011, Kitot Bldg., Faculty of Engineering
Sub-Nyquist Sampling: Bounds, Algorithms and Hardware
Abstract
The famous Shannon-Nyquist theorem has become a landmark in the development of digital signal processing. However, in many modern applications, the signal bandwidths have increased tremendously, while the acquisition capabilities have not scaled sufficiently fast. Consequently, conversion to digital has become a serious bottleneck. Furthermore, the resulting high rate digital data requires storage, communication and processing at very high rates which is computationally expensive and requires large amounts of power.

In this talk, we present a framework for sampling and processing a wide class of wideband analog signals at rates far below Nyquist. We refer to this methodology as Xampling: A combination of compression and sampling, performed simultaneously. Using the Cramer-Rao bound we develop a generic low-rate sampling architecture that is optimal in a mean-squared error sense, and can be applied to a wide variety of wideband inputs. The resulting system can be readily implemented in hardware, and is easily modified to incorporate correlations between signals. We consider application of these ideas to a variety of problems including low rate ultrasound imaging, radar detection, ultra wideband communication, and cognitive radio, and show several demos of real-time sub-Nyquist prototypes.

 

16 בנובמבר 2015, 15:00 
חדר 011, בניין כיתות-חשמל  

סמינר מחלקתי Avishai Sintov

04 בינואר 2016, 15:00 
וולפסון 206  
0
סמינר מחלקתי Avishai Sintov

 

 

 

 

 

School of Mechanical Engineering Seminar
Monday, january 4, 2016 at 15:00
Wolfson Building of Mechanical Engineering, Room 206

 

 

Common Grasping and Dynamic Regrasping

 

Avishai Sintov

Ben-Gurion University of the Negev

 

 

 

 

In today’s manufacturing plants, robots are the foundational element of high volume automation and are used extensively in various operations. Today’s manufacturing plants have to juggle two critical and often conflicting requirements: the greater demand and the higher quality. This requires manufacturing high quality products while meeting a very high production rate. The robots interact with the objects by using an arm and an end-effector that is a key interface between the robot and the component or product that needs to be handled. The robot arms are built for multi-purpose tasks. While many end-effectors look similar to one another; they are designed, built, and optimized for a specific task and specific part geometry. This makes them very inflexible in handling variations in component shape or the task. Thus, a typical end-effector consumes a considerable amount of engineering time and adds extra cost to the final product. 

In this talk I will address this problem with two distinguish approaches. The first is a novel search algorithm for common grasping of a set of objects. The algorithm searches for a simple end-effector design able to feasibly grasp all of the objects. The second approach is known as Dynamic Regrasping to alternate grasp configurations of the object with respect to the task to be done. I would talk about two types of dynamic regrasping manipulations using a robotic arm and a simple non-dexterous gripper. Thus, the same arm can grasp multiple parts and perform multiple operations on the same part, and by that decrease the number of robotic arms in the plant.

 

 

 

 

11/5/15 - Dr. Jeffrey Pawlan

Dr. Jeffrey Pawlan

Pawlan Communications, San Jose CA, USA

An Introduction to Software Defined Radio

 

05 בנובמבר 2015, 16:00 
011 כיתות  
11/5/15 - Dr. Jeffrey Pawlan

Dr. Jeffrey Pawlan

 

Pawlan Communications, San Jose CA, USA

 

An Introduction to Software Defined Radio

 

Abstract

This lecture will begin with the definition, history and evolution of Software Defined Radio (SDR). RF/microwave engineers will find it clear and understandable because analogies will be made to conventional classic radio systems and components. The lecture will then introduce the concepts of oversampling and undersampling as it applies to SDR. There will be an introduction to the details of correctly driving and implementing an A/D converter as this is one of the important areas that the RF/microwave engineer will be asked to do. There will be an introduction and explanation of the firmware and software portions of SDR and a comparison with state-of-the art conventional analog circuitry will be shown. A live demonstration of SDR will be presented. Software Defined Radio (SDR) is the culmination of advances on several fronts and probably the most significant area of development in radio systems today. The entire worldwide cellular system uses SDR. NASA and the US military communications are now almost exclusively using SDR. Some new automobile radios use SDR to accommodate multiple modulation formats. The role of the RF/microwave engineer in this new technology will be shown so that the audience can adapt and feel that their skills are needed in the evolving field of radio communications

Bio

Dr. Jeffrey Pawlan has been a consultant as owner of Pawlan Communications for 25 years. Prior to that, he had worked for many companies in California in very diverse areas of analog, RF, and microwave design and has been an engineer for 45 years. Some of his work was for NASA projects including the very successful design of the SARSAT/COSPAS search and rescue satellite ground stations. He also taught engineering part-time. Born and raised in the Los Angeles area, he attended UCLA and several other universities. He enjoyed learning many different fields and has 13 years of higher education including a Doctorate degree. He has worked on projects for consumer, industrial, and military applications covering a wide range of the spectrum from LF to 50GHz. In addition to his primary involvement with the MTT society, he is also a member of the UFFC (frequency control) concentrating on low phase noise oscillators and phase noise measurements, a member of the AP-S, and also the Communications Society. He has published several papers and has two patents. He is serving as a member on the IEEE SCV Section ExCom and also is on the Opcom of Region 6. He is a member of two MTT technical committees, MTT-9 and MTT-20. He has been designing RF and microwave hardware for Software Defined Radio uses within instrumentation and military satellite communications since 1984. He has presented talks in many MTT workshops and more than 58 lectures world-wide.

 

Thursday, November 5, 2015, at 16:00

Room 011, Kitot building

 

The Department of Systems, School of Electrical Engineering at Tel Aviv University is recruiting excellent candidates

04 נובמבר 2015

The Department of Systems, School of Electrical Engineering at Tel Aviv University is recruiting  excellent candidates with outstanding academic credentials for tenure-track positions at all levels.

 

Faculty members in the department specialize in systems and control theory, information theory, signal processing, networking, computer vision, machine learning, power electronics, systems biology, communications, cryptography, the theory of algorithms, and more.

 

Evaluation of candidates will be based primarily on originality, the potential for performing ground-breaking research, and high commitment for teaching.  Nominees must have or be entitled to a  Israeli Citizenship.  

 

For more information, please contact the Dept. Chair: Prof. Michael Margaliot, Email: michaelm@eng.tau.ac.il

 

 

סמינר מחלקתי

Fare Prediction Websites and Transaction Prices: Empirical Evidence from the Airline Industry

Dr. Eran Rubin - Faculty of Technology Management at the Holon Institute of Technology (HIT)

 

Abstract:

. The operations discipline has increasingly accounted for the presence of strategic consumer behavior. Theory suggests that such behavior exists when consumers are able to consider future distribution of prices, and that this behavior exposes firms to intertemporal competition which results with a downwards pressure on prices. However, deriving future distribution of prices is not a trivial task. Online decision support tools that provide consumers with information about future distributions of prices can facilitate strategic consumer behavior. This research studies whether the availability of such information affects transacted prices by conducting an empirical analysis in the context of the airline industry. Studying the effect at the route level, we find significant price reduction effects as such information becomes available for a route, both in fixed-effects and difference-in-differences estimation models. This effect is consistent across the different fare percentiles and amounts to a reduction of approximately 4-6% in transactions’ prices. Our results lend ample support to the notion that price prediction decision tools make a statistically significant economic impact. Presumably, consumers are able to exploit the information available online and exhibit strategic behavior.

 

Bio :

Dr. Eran Rubin is currently a lecturer at the Faculty of Technology Management at the Holon Institute of Technology (HIT). He received his Ph.D. in Management Information Systems from the University of British Columbia, and B.Sc. with High Honor in Computer Science from the Technion - Israel Institute of Technology. His research interests include financial impacts of information systems, decision support systems and systems analysis and design. Dr. Rubin has published in various journals including Marketing Science, Information & Management, Journal of Business Finance and Accounting, and Requirements Engineering.

 

 

ההרצאה תתקיים ביום שלישי 10.11.15, בשעה 14:00 בחדר 206, בנין וולפסון הנדסה, הפקולטה להנדסה, אוניברסיטת תל-אביב.

10 בנובמבר 2015, 14:00 
חדר 206 בניין וולפסון  

סמינר מחלקתי

 

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