Activities
LEBANESE ELECTROMAGNETICS DAY 2023
FriDAY, June. 16, 2023, 9:00AM-15:00PM
The Lebanon IEEE joint Chapter AP/MTT/MAG is organizing a technical event and a 3-tier student competition. This year's in person event will be held at Byblos on Friday June the 16th , 2023. The event features many presentations, the highlight of which will be a competition for students in Lebanon permitting them to showcase their recent academic work in (electro)magnetics.
AP/MTT/MAG LEBANON CHAPTER WEBINAR: DISTRIBUTED PHASED ARRAYS CHALLENGES AND RECENT PROGRESS BY Prof. Jeffrey Nanzer
TUESDAY, SEP. 06, 2022, 10:00AM-11:15AM, CO-SPONSORED BY AMERICAN UNIVERSITY OF BEIRUT, MAROUN SEMAAN FACULTY OF ENGINEERING AND ARCHITECTURE, ELECTRICAL AND COMPUTER ENGINEERING DEPARTMENT
There has been significant research devoted to the development of distributed microwave wireless systems in recent years. The progression from large, single-platform wireless systems to collections of smaller, coordinated systems on separate platforms enables significant benefits for radar, remote sensing, communications, and other applications. The ultimate level of coordination between platforms is at the wavelength level, where separate platforms operate as a coherent distributed system. Wireless coherent distributed systems operate in essence as distributed phased arrays, and the signal gains that can be achieved scale proportionally to the number of transmitters squared multiplied by the number of receivers, providing potentially dramatic increases in wireless system capabilities. Distributed array coordination requires accurate control of the relative electrical states of the nodes. Generally, such control entails wireless frequency synchronization, phase calibration, and time alignment, but for remote sensing operations, phase control also requires high-accuracy knowledge of the relative positions of the nodes in the array to support beamforming. This lecture presents an overview of the challenges involved in distributed phased array coordination, and describes recent progress on microwave technologies that address these challenges. Requirements for achieving distributed phase coherence at microwave frequencies are discussed, including the impact of component non-idealities such as oscillator drift on beamforming performance. Architectures for enabling distributed beamforming are reviewed, along with the relative challenges between transmit and receive beamforming. Microwave and millimeter-wave technologies enabling wireless phase-coherent synchronization are discussed, focusing on technologies for high-accuracy internode ranging, wireless frequency transfer, and high-accuracy time alignment. The lecture concludes with a discussion of open challenges in distributed phased arrays, and where microwave technologies may play a role.
LEBANESE ELECTROMAGNETICS DAY 2022
LEMD22 Student Competition
Call for abstracts The Lebanon IEEE joint Chapter AP/MTT/MAG is organizing a technical event and a 3-tier student competition. This year's in person event will be held at AUB on Thursday June the 16th , 2022. This year's technical event will feature a HAM Radio presentation and demonstration. However, the highlight of this event will be a student competition with 6 cash prizes. Two prizes for the best PhD level research, two for the best Master level project, and two for the best senior/final year project presentation. It is requested that students wishing to participate, submit a no more than a 200-word abstract. Students with a selected abstract will have 10 minutes to present their work and a committee will select the best presenters. Up to 15 participants will receive a society membership as small reward. Students that were at a Lebanese university and moved abroad are also eligible to participate. Accepted topics include Electromagnetic, microwave, magnetics, antennas, and related topics. Topics could be pure theory, or application, or a combination of both. Online presentations could be arranged only for special circumstances. Committee approval is required. Please send abstracts to Ernst Huijer at ernst.huijer@gmail.com and Usamah Farrukh at uoFarrukh@icloud.com Deadline for abstract submission is Tuesday June 14 (8PM Beirut time)
Symmetry Breaking by Materials Engineering for Spin-Orbit-Torque Technology By Prof. Chen Jingsheng
Tuesday, Apr. 12, 2022, 12:30PM-01:45PM, Co-sponsored by American University of Beirut, Maroun Semaan Faculty of Engineering and Architecture, Electrical and Computer Engineering Department
Electric manipulation of magnetization is essential for the integration of magnetic functionalities in integrated circuits. Spin-orbit torque (SOT), originating from the coupling of electron spin and orbital motion through spin-orbital interaction, can effectively manipulate magnetization. Symmetry breaking plays an important role in spintronics based on SOT. SOT requires inversion asymmetry in order to have a net effect on magnetic materials, which is commonly realized by spatial asymmetry: a thin magnetic layer sandwiched between two dissimilar layers. This kind of structure restricts the SOT by mirror and rotational symmetries to have a particular form: an “antidamping-like” component oriented in the film plane even upon reversal of the magnetization direction. Consequently, magnetization perpendicular to the film plane cannot be deterministically switched with pure electric current. To achieve all-electric switching of perpendicular magnetization, it is necessary to break the mirror and rotational symmetries of the sandwiched structure.
Exploring the Potentials of Spin-Orbitronics By Prof. Aurelien Manchon
Tuesday, Mar. 8, 2022, 01:00PM-02:15PM, Co-sponsored by American University of Beirut, Maroun Semaan Faculty of Engineering and Architecture, Electrical and Computer Engineering Department
The ever-increasing demand for information technology for power-efficient components has led to the search for alternative solutions to mainstream microelectronics. In this context, spintronics devices stand out as competitive candidates, especially for memory and logic applications. A promising route harvests unconventional transport properties arising from spin-orbit coupling in magnetic heterostructures lacking inversion symmetry.
In these systems, typically multilayers of transition-metal ferromagnets and heavy materials (e.g., W, Pt, Ta, Bi2Se3, and WTe2), interfacial spin-orbit coupling promotes a wealth of remarkable physical phenomena: the generation of spin-orbit torques, the interconversion between spin and charge currents, and the stabilization of topological magnetic skyrmions. These effects have gathered extraordinary interest and have led to remarkable experimental breakthroughs, including extremely fast magnetic reversal, terahertz emission, and current-driven skyrmion motion. The recent synthesis of novel classes of materials, including all-oxide heterostructures, noncollinear antiferromagnets, and van der Waals heterostructures, has profoundly enriched this vivid field of research by unlocking unforeseen forms of torques and magnetic interactions, thereby enhancing the functionalities of spin-orbitronic devices.
Spins, Bits, and Flips: Essentials for High-Density Magnetic Random-Access Memory By Prof. Tiffany S. Santos
Tuesday, Feb. 15, 2022, 06:00PM-07:15PM, Co-sponsored by American University of Beirut, Maroun Semaan Faculty of Engineering and Architecture, Electrical and Computer Engineering Department
The magnetic tunnel junction (MTJ), a device comprised of two ferromagnetic electrodes with a thin (about 1 nm) insulating tunnel barrier in between, was first proposed in a Ph.D. thesis by Michel Jullière in 1975 [1], [2] and reached widespread commercialization nearly 30 years later as the read sensor in hard disk drives. MTJs became essential for data storage in consumer laptop and desktop computers, early-generation iPods, and now in data centers that store the information in “the Cloud.” The application of MTJs has expanded even further, becoming the storage element in non-volatile memory, first in toggle magnetic random access memory (MRAM) used in automotive applications and outer space, and now in the production of spin-transfer torque MRAM as a replacement for embedded flash memory. As computing capabilities advance and drive demand for high-performance memory, innovation in MTJ continues in order to deliver faster, high-density MRAM that can support last-level cache, in-memory computing, and artificial intelligence.
WEBINAR: RF Design for Ultra-Low-Power Wireless Communication Systems: Efficiently Miniaturizing and Passively Sensing by Prof. Jasmin Grosinger
February 01, 2021, 12:30PM-01:30PM, WebEx
EXCOM APMTTMAG CHAPTER LEBANON
December 09, 2021, 05:00PM-06:00PM, WebEx
- Minutes of the meeting of July 27th, 2021.
- Financial state of the chapter.
- Membership support.
- Events.
- Review.
- DL lectures.
- EM day 2022.
- Website.
- Other issues.
WEBINAR: Additive Manufacturing for Antennas and Electronics from GHz to THz by Prof. Hao Xin
November 30, 2021, 03:00PM-04:00PM, WebEx
Additive manufacturing technology, often called 3D printing, have received much attention recently with impressive demonstrations ranging from musical instruments, to vehicles, to housing components or even entire buildings. Different structural materials including metal, polymer, ceramics, biological tissues and even concrete, have been incorporated in various 3D printing technologies. Printing dimension ranging from nanometers to meters has been reported. This presentation will highlight several research projects being carried out by Prof. Hao Xin’s group in the area of 3D printed components and potential systems for GHz to THz operation. Various printing techniques such as polymer jetting based on photosensitive polymer, fused deposition modeling using thermal plastics, etc. will be compared for their applicability for RF antennas and electronics applications. A number of demonstrated examples including electromagnetic crystals, waveguides, antennas, phased array, gradient index lenses and holographic devices will be presented. Interesting applications of these 3D printed structures such as a new type of lens array for electronic beam scanning will also be described. Some of the important future research directions and challenges including potential novel designs enabled by 3D printing technology, development of additive manufacturing compatible materials with desired electromagnetic properties, and simultaneous printing of high quality conductor with other non-conductor materials will be discussed as well.
WEBINAR: RFID SYSTEMS AND APPLICATIONS by Prof. Atef Z. Elsherbeni
November 09, 2021, 05:00PM-06:00PM, WebEx
With the fast-emerging use of Radio frequency identification (RFID) technology there is a great need for understanding the system composition and theory of operation. This presentation will start with a brief history and the illustration of an RFID system components. Next is the process of operation and the frequency allocation in different parts of the world. Followed by the different types of RFID tags and their properties. Focus will then shift to the UHF systems, tag developments and system applications, especially for integrating sensors with RFID tags. Throughout the presentation, material available from open literature will be presented and identified along with other material developed by the presenter in collaboration with different groups and students. Current challenges for RFID systems and applications will be highlighted and other identification methods will be touched on at the end of the presentation.
WEBINAR: ANTENNAS FOR FUTURE IOT DEVICES: CHALLENGES AND PERSPECTIVES by Prof. Leonardo Lizzi
September 21, 2021, 12:30PM-01:30PM, WebEx
Last years have seen the spreading of the Internet-of-Things (IoT) idea, for which any kind of object should be equipped with wireless connectivity to communicate and share information over the internet. This paradigm will be disruptive by changing the way people interact with their environment, such as at home, at work, in transportation, etc. This implies that standard telecommunication aspects must be revised to match the IoT challenges. This led for example to the development of ultra-sensitive modulation schemes thanks to lower bandwidth requirements or the definition of new protocols capable of dealing with the tremendous number of connected objects and enabling compatibility between heterogeneous devices. In this framework, this talk will focus on the antenna design problem, which must be also completely rethought. Differently from classical approaches, the design of IoT antennas can neglect the bandwidth requirements and focus on other aspects, such as strong miniaturization. On the other hand, depending on the application at hand, aspects as antenna efficiency or environmental sensitivity become particularly important and must be carefully considered. During the talk, several examples of antennas integrated into IoT devices and developed for different industrial and research projects will be presented and discussed.
LEBANESE ELECTROMAGNETICS DAY
June 15, 2021, 04:00PM-07:00PM, WebEx
Chapter members and students presented their work on antenna's, microwaves, or magnetics. Students graduating at the end of the present academic year (2020-2021) invited to submit their work performed as a final year project or a master’s thesis during the Lebanon 2021 Electromagnetics Day.
- 1. Presentation of Chapter
- 2. Keynote Speaker, Dr. Joseph Costantine, AUB
- 3. Presentations by students
- Jessica Joseph Hanna "Noninvasive, wearable, and tunable electromagnetic multisensing system for continuous glucose monitoring, mimicking vasculature anatomy"
- Rosette Maria Bichara "A Folded Miniaturized Antenna for IoT Devices"
- Hassan shwaykani "A Calibration-Free Method for the Dielectric Constant Calculation of Low-Loss Materials"
- Fatima AlZahraa Bassam Asadallah "Enhanced Isolation for Reconfigurable MIMO Systems in Mobile Devices"
- Hawraa Moghnieh "Specific Absorption Rate Reduction"
- Ahmad Jabri "Beam Steering Limitations of Sequentially Rotated Phased Array at Millimeter Wave"
- Mhamad Abd_latif Edelby "Design and Analysis of Printed Antenna using Artificial Neural Network"
- 4. Awards
Online General Assembly
May 19, 2021, 05:00PM-06:00PM, WebEx
On May 19th at 5PM, we held an on-line general assembly. It was an excellent occasion to get to know all other members in the chapter. The Executive Committee presented the history and the situation of the chapter. Agenda:
- Chapter presentation by the current chair.
- Presentation of the Excom.
- Presentation of future plans.
- Round table and open discussion.
5G: OPPORTUNITIES AND CHALLENGES
April 28, 2020, 06:00PM-08:00PM, ELH, Munib and Angela Masri Building, American University of Beirut
5G is an exciting next generation wireless communications technology that offers the promise of changing how we live, work and even play. The technology provides an order of magnitude improvement in speed, latency, and connection density. Across the ecosystem, from SoC chipset providers to infrastructure vendors, engineers are using innovations in areas such multi-domain design and model based system engineering to harness the technology complexity as a competitive advantage. Join Fram Akiki, a 35 year industry veteran, for an interactive discussion that deciphers some of the technical jargon behind the technology and how the electronics and semiconductor industries are approaching the opportunities and challenges in turning the 5G promise into reality.
ANALOG PHOTONIC SYSTEMS: FEATURES & TECHNIQUES TO OPTIMIZE PERFORMANCE
Mar. 04, 2020, 12:00PM-01:00PM, ELH, Munib and Angela Masri Building, American University of Beirut
Both the scientific and the defense communities wish to receive and process information occupying ever-wider portions of the electromagnetic spectrum. This can often create an analog-to-digital conversion “bottleneck”. Analog photonic channelization, linearization, and frequency conversion systems can be designed to alleviate this bottleneck. Moreover, the low loss and dispersion of optical fiber and integrated optical waveguides enable most of the components in a broadband sensing or communication system, including all of the analog-to-digital and digital processing hardware, to be situated many feet or even miles from the antennas or other sensors with almost no performance penalty. The anticipated presentation will highlight the advantages and other features of analog photonic systems (including some specific systems that the author has constructed and tested for the US Department of Defense), and will review and explain multiple techniques for optimizing their performance.
MM-WAVE RFIDS: LOW COST, HIGHER DATA-RATES, UBIQUITOUS SENSING AND LONGER RANGE
Jan. 09, 2020, 12:30PM-01:30PM, ELH, Munib and Angela Masri Building, American University of Beirut
The very concept of mm-wave RFID strikes most as a, perhaps, rather absurd academic endeavor or, at best, as only to be of interest for applications that require short-range and high data-rate communications. The common narrative goes as follows: Path loss increases as frequency increases and RFIDs are inherently short-range systems. Therefore, any effort striving to develop decently ranging RFID systems is a fool’s errand. The work presented in this seminar flips this idea on its head by bypassing a surprisingly-common misconception about path loss—enabled by the use of electrically-large flexible printed retrodirective antenna structures—and by showing that mm-wave RFID can readily outperform their lower-frequency counterparts in most respects, including range. Applications, taking advantage of the landscape offered by this unusual realization, will then be presented. These unique devices include fully-printed gas-monitoring smart stickers and wallpapers, the longest-ranging battery-less and semi-passive tracking devices ever reported, and long-range energy harvesters for 28 GHz 5G networks. Along with inkjetprinting—the manufacturing technology adopted for the fabrication of nearly all of these devices—the presented innovations are opening a window through which one can witness the upcoming ubiquitous-sensing age of the Internet of Skins.
Seminar: Spin-Orbit Technologies: From Magnetic Memory to Terahertz Generation by Prof. Hyunsoo Yang (IEEE DL)
Thursday, Sep. 11, 2019, 12:00PM-01:00PM, ELH, Munib and Angela Masri Building, American University of Beirut
Spintronic devices utilize an electric current to alter the state of a magnetic material and thus find great application in magnetic memory. Over the last decade, spintronic research has focused largely on techniques based on spin-orbit coupling, such as spin-orbit torques (SOTs), to alter the magnetic state. The phenomenon of spin-orbit coupling in magnetic heterostructures was also recently used to generate terahertz emission and thus bridge the gap between spintronics and optoelectronics research.
Seminar: Inkjet-/3D-/4D-Printed Wireless Ultra-broadband Modules for IoT, SmartAg and Smart Cities Applications by Prof. Manos M. Tentzeris
Thursday, Sep. 05, 2019, 12:30PM-01:30PM, ELH, Munib and Angela Masri Building, American University of Beirut
In this talk, inkjet-/3D-printed antennas, interconnects, “smart” encapsulation and packages, RF electronics, microfluidics and sensors fabricated on glass, PET, paper and other flexible substrates are introduced as a system-level solution for ultra-low-cost mass production of Millimeter-Wave Modules for Communication, Energy Harvesting and Sensing applications. Prof. Tentzeris will touch up the state-of-the-art area of fully-integrated printable broadband wireless modules covering characterization of 3D printed materials up to E-band, novel printable “ramp” interconnects and cavities for IC embedding as well as printable structures for self-diagnostic and anti-counterfeiting packages. The presented approach could potentially set the foundation for the truly convergent wireless sensor ad-hoc networks of the future with enhanced cognitive intelligence and "rugged" packaging. Prof. Tentzeris will discuss issues concerning the power sources of "near-perpetual" RF modules, including flexible miniaturized batteries as well as power-scavenging approaches involving thermal, EM, vibration and solar energy forms. The final step of the presentation will involve examples from shape-changing 4D-printed (origami) packages, reflectarrays and mmW wearable (e.g. biomonitoring) antennas and RF modules. Special attention will be paid on the integration of ultrabroadband (Gb/sec) inkjet-printed nanotechnology-based backscattering communication modules as well as miniaturized printable wireless (e.g.CNT) sensors for Internet of Things (IoT), 5G and smart agriculture/biomonitoring applications. It has to be noted that the talk will review and present challenges for inkjet-printed organic active and nonlinear devices as well as future directions in the area of environmentally-friendly ("green") RF electronics and "smart-skin' conformal sensors.
Seminar: Flat Channel Communication: a Paradigm Shift in the Intra-body Microwave Communication Technology by Prof. Robin Augustine
Thursday, June 14, 2019, 10:00AM-11:00AM, ELH, Munib and Angela Masri Building, American University of Beirut
Intra body communication has been researched quite extensively for the past couple of decades to serve the needs in real time monitoring, drug delivery, sensing for pre-emptive measures and to provide better quality of living to the population. The applications are not just limited to health care but also span to the areas of recreation, sports and information technology. A handful of intra body, more specifically human body centric (HBC) communication modalities have been developed so far namely galvanic,
capacitive and inductive methods. Human body or part is used as a communication channel in these technologies. Though they offer the possibility to connect devices and transfer data wirelessly from one part of the body to the other they suffer from one common draw back which is the low band width hence lower data rates. Radio frequency communication has been regarded until recently as an improbable candidate for extensive HBC applications. In 2016, we addressed the feasibility of using the adipose tissue to transmit Microwave signals inside the body with significantly low loss (2dB/cm). Since then, extensive research has been executed on different aspects of fat channel communication. Considering the human anatomy the fat tissue is found to be sandwiched between denser tissues such as skin and muscle. As it is known that the fat due to its very low water content has low permittivity and losses while muscle and skin do have an order of magnitude high permittivity and losses which is three to four times that of fat. This creates a natural wave-guiding structure which we can utilize to transmit microwave signals at ISM frequencies. Microwave fat channel communication pushes further the current limits in intra-body data transfer by providing a higher bandwidth and enabling better power management to ensure longer implanted battery life. Fat channel communication will also help substantially the development of artificial limbs which require transfer of high volume electrophysiological data wirelessly.
Seminar: Radar, autonomous vehicles, and NASA: a career shaped by AUB by Prof. Fawwaz Ulaby
Thursday, May 30, 2019, 11:00AM-12:00PM, ELH, Munib and Angela Masri Building, American University of Beirut
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MoU Signing with Radio Amateurs of Lebanon (RAL):
December 15, 2018, Monroe Hotel, Beirut
On Saturday 15 December 2018, and during the Radio Amateurs of Lebanon (RAL) Annual Meeting at Monroe Hotel, Beirut, the ExCom of the APMTTMAG Lebanon Chapter, representing the IEEE Lebanon Section, signed a Memorandum of Understanding (MoU) with RAL.
The Offshore European School of Antennas Short Course on "Antennas and Rectennas for IoT Applications":
October 1-5, 2018, American University of Beirut (AUB)
Antennas and Rectennas for IoT Applications (ARIA) is a short course of the European School of Antennas that was organized at the Maroun Semaan Faculty of Engineering and Architecture (MSFEA), the American University of Beirut, from Monday October 1, 2018 to Friday October 5, 2018. This off-shore version of the short course is part of a series of courses that are held across Europe throughout the year. The short course targeted graduate and doctoral students and educated them on topics that are at the forefront of innovative new technologies in the world of applied electromagnetics, antennas, and radio frequency (RF) circuits.
ARIA specifically covered the theory, design, fabrication and measurement of various antenna components that can be integrated within compact devices to allow them to communicate with each other within the setting of Internet of things (IoT). It also covered rectenna systems (Rectifier + Antenna) that collect ambient RF waves and convert them into direct current (DC) power in order to charge or trigger these compact devices.
Students who registered for ARIA came from nine universities, as well as from companies that work in the IoT field. They gathered from Lebanon, KSA, Jordan, Turkey and France to attend this short course and learn from experts in the field. The short course was organized and taught by six professors who are active in this research area, including professors Joseph Costantine and Youssef Tawk from AUB, Leonardo Lizzi and Fabien Ferrero from University Cote d'Azur (UCA) in France, Lars Jonsson from KTH in Sweden, and Manos Tentzeris from the Georgia Institute of Technology (GATech).
The IEEE Antennas and Propagation, Microwave Theory and Techniques, and Magnetics Lebanon Joint Chapter sponsored five students to attend ARIA. Dr. Ernst Huijer, the Chapter's chair, highlighted the importance of such activities at AUB and in Lebanon in general.
https://univ-cotedazur.fr/aria
The First General Assembly of the IEEE AP, MTT and MAG Members in Lebanon:
September 14, 2018, Military Beach Club, Beirut
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The Highschool Magnetics Education Project:
The IEEE AP/MTT/MAG Lebanon Joint Chapter has received a donation from the IEEE Magnetics Society of $2000 for the purpose of educating highschool students in Lebanon about the basics of magnetism and its applications. Educational materials were purchased from the US as well as from Europe. In the framework of a Final Year Project at AL-Manar University of Tripoli, Engineering student Ahmad Trad was tasked to develop a program of demonstrations and experiments suitable to be performed during highschool physics classes. It is hoped that students will appreciate more the important role that magnetics play in our daily lives. Think of information storage, electronics, electric motors, the application of these motors in robotics, and wireless energy transfer.
The project will be supervised by Drs. Kamali and Huijer of the AP/MTT/MAG Chapter Excom and Mr. Ihab Hassoun, instructor of Electromagnetics at MUT.
Lectures and Seminars:
November 27, 2018, American University of Beirut (AUB)
Seminar at AUB by Profs. Giuseppe Virone and Fabio Paonessa, Consiglio Nazionale delle Ricerche (CNR), Turin, Italy"UAV-enabled Experimental Activities on Antennas and Systems"
Decsription:
Unmanned Aerial Vehicles are being exploited as source/probe antenna positioners in various in-situ measurement scenario from HF to microwaves. Both near- and far-field strategies are being developed. Far-field flying test sources have been already used to characterize both radiotelescopes and radars. Broadcast tower verification, propagation measurements and field mapping have been instead performed by means of onboard calibrated receiving equipment. The seminar focused on these relevant technological challenges with particular reference to the application, measurement approach, RF/UAV setup and positioning strategies.
October 17, 2018, American University of Beirut (AUB)
Seminar at AUB by IEEE Magnetics Society Distinguished Lecturer Prof. Alison Flatau"Structural Magnetostrictive Alloys: From Flexible Sensors to Energy Harvesters and Magnetically Controlled Auxetics"
Decsription:
Novel sensors and energy harvesting transducers take advantage of the significantly expanded design space made possible by recent advances in structural magnetostrictive alloys. These alloys can be machined and welded, have high fracture toughness, and can actuate, sense, and carry load while subjected to tension, compression, and bending. The talk includes an introduction to magnetostrictive materials and transduction, and a discussion on the use of low-cost rolling and annealing methods in lieu of more costly crystal growth methods for making bulk iron-gallium (Galfenol) and iron-aluminum (Alfenol) alloys. The process of using magnetostrictive materials to convert mechanical energy into magnetic energy and then into electrical energy is explained and demonstrated using sensors and energy harvesting devices as examples. Examples of magnetostrictive devices include prototypes ranging in size from nanowire-based pressure sensors to huge structures floating in the ocean that convert wave energy into electrical power for "community-scale" energy needs. The recent discovery of a particularly unique attribute of these alloys, their auxetic behavior, will also be discussed. In both Galfenol and Alfenol, both strain and magnetic fields can produce simultaneous increases in lateral and longitudinal dimensions, with measured values of the resulting Poisson ratio being not only negative, but as low as -2.0 in some cases. Mechanical, aerospace and civil engineers should find the discussion on the use of magnetic fields to control auxetic behavior quite interesting.
September 07, 2018, Order of Engineers, (OEA), Beirut
Engineering Education and Science Research ConferencePresentation by the ExCom of the IEEE AP/MTT/MAG Lebanon Chapter titled "From Basic Principles to Applications, the Story of Magnetics in a Highschool Setting"
The authors of the presented paper are: Ernst Huijer, Walid Kamali, Usamah Farroukh, Mohammed Al-Husseini, Bassem Hmouda, Ihab Hassoun, and Ahmad Trad
December 07, 2017, Al-Manar University of Tripoli (MUT)
One-day Workshop on COMSOL MultiphysicsSponsored by the IEEE AP/MTT/MAG Lebanon Chapter, organized by MUT-SB
Decsription:
This one-day workshop provided an opportunity to explore the capabilities of COMSOL Multiphysics and the Application Builder in a hands-on setting. Participants from various institutions in North Lebanon practiced on the fundamentals of modeling with COMSOL and set up and solved a model of antennas with help from the COMSOL staff.
November 20, 2017, Al-Manar University of Tripoli (MUT)
"Seminar on LabVIEW", Prof. Ihab HassounSponsored by the IEEE AP/MTT/MAG Lebanon Chapter, organized by MUT-SB
February 12, 2014, BAU
February 11, 2014, AUB
"A New Class of Printed Leaky Wave Antennas", IEEE DL Prof. Yahia Antar
December 13, 2013, NDU
December 12, 2013, AUB
"Magneto-optical Analysis of Magnetic Microstructures", IEEE DL Prof. Rudolf Schaefer
November 10, 2011, at 11:00 AM, AL-Mountada Conference Room, Library Building, MUT
"PET/CT imaging: physics, dosimetry, applications, and technical advances", Dr. Osama MawlawiDecsription:
In the past few years, positron emission tomography/computed tomography (PET/CT) imaging has increasingly been used for the diagnosis, staging, and restaging of malignant diseases. The success of this modality has primarily been due to its ability to combine the advantages of both PET and CT imaging while minimizing their separate weaknesses. One of the main advantages of PET/CT imaging is its ability to generate functional images depicting the biodistribution of radioactive compounds and correlate them with anatomical landmarks thereby increasing the physicians’ confidence in image interpretation and improving patient management.
The aim of this lecture is to provide an overview of the basic physics and engineering principles of PET/CT imaging as well as the advantages and drawbacks of using CT for attenuation correction of PET data. In addition, the lecture will cover PET/CT dosimetry, applications, and design specifics of commercially available scanners from different manufacturers. A description of the emerging field of PET/MR imaging as well as a review of PET/CT quality control and assurance techniques will also be presented.
June 07, 2011, NDU
"Low-cost 60 GHz GBit/s BPSK/QPSK receiver with analog demodulation", Dr. Hermann SchumacherDecsription:
The presentation will describe a receiver concept and implementation specifically designed for low-cost, very short-range applications (centimeters to meters) with up to 7 GBit/s throughput. The circuits have been implemented (except for the optional low-noise amplifier) in an 0.8 µm low-cost, all npn SiGe HBT technology with 80 GHz transit frequency. A novelty of the approach is the fully analog implementation of carrier recovery and demodulation at an intermediate frequency of about 5 GHz, which eliminates the need for high speed analog-to-digital conversion and dramatically lowers the power consumption of the receiver. Experimental results of a three-chip solution (LNA, downconverter,demodulator) on a low-cost organic substrate will be shown. A single-chip donwconverter/demodulator solution is currently under evaluation.