Tutorials

Saturday, 17 Dec. 2016

Morning tutorial (9:00 a.m.- 11:00 a.m.)

Tutorial # 1: Circuit Design for Optogentics Based Biomedical Devices

Abstract

Optogenetics, a gene-therapy technique for photosensitizing cells, is becoming an increasingly mature tool for biomedical research. It could also form the basis for next generation neuroprosthetic therapies such as visual prosthesis, epilepsy and Parkinson. Photosensitization is achieved through modifying the cell’s genetic code to produce light-sensitive ion channels or pumps. Light-based stimulation has certain advantages compared to the electrical stimulation devices. These include biocompatibility, genetic targeting of the neural sub-circuits, and the ability to simultaneously stimulate and record (electrically). However, the key caveat is that the threshold for activation of optogenetically encoded cells is very high. Classically this is 0.7mW/mm2 (=0.7nW/µm2) in pulses of around 10ms for wild-type ChR2. Different techniques are used to generate the required light like using optical fibre to send the light signal into the brain. Yet, our approach is based on using uLED to generate the light to avoid using the fibre through the brain. Hence, different circuits are needed here to drive the uLED under different limitations like the limited power, heat dissipation and the required amount of light.  Besides, these devices are designed to be implantable which means it needs a self-monitoring for device performance and degradation. So, many sensors like Fracture sensor, temperature sensor, humidity sensor and breakage sensor are embedded on the optrodes to monitor its performance.

Instructor: Dr. Ahmed Soltan, research associate at the school of Electrical Engineering  Newcastle university.

soltan

Bio:

Ahmed Soltan received the Ph.D. degree in electronics and communication from Cairo University. He is currently working as a research associate at the school of Electrical Engineering  Newcastle university. His current research interests is about designing low power systems for implementable biomedical devices. He is also interested in the investigation of fractional circuits and systems, specifically in fractional order analog filters for signal processing and fractional order modelling for biomedical applications.



Afternoon Tutorials(11:30- 13:30)

Tutorial # 2: Fractional-Order Circuits and Systems 

Fractional calculus is the branch of mathematics related to differentiation and integration of non-integer orders where the conventional calculus is considered a special case from it. Although the basic concepts of fractional-calculus have been known for more than 300 years, but researchers have become more interested with these concepts during the last few decades. Recently, the theorems and basic design procedures of fractional-order sinusoidal oscillators, filters, and electromagnetics have been introduced mathematically, verified by Spice circuit simulations, and proved experimentally for different cases. For example the conventional filters design is limited to 1st, 2nd, 3rd,…etc. orders but the design of fractional-order filters enables the designers to implement any arbitrary order for example 1.5 or 2.7. One of the advantages of fractional-order is the extra degrees of freedom added by the fractional-order parameters which enrich the analysis with more details in new dimensions, where a wider range of operations is achieved, novel patents such as 3D-Smith chart, and extra optimization techniques can be applied for matching applications. This Tutorial aims to Merge and integrate together interdisciplinary concepts from mathematics (fractional-calculus), circuit theory, circuit modeling in a theoretical and experimental frame-work.

Instructor: Dr. Lobna A. Said, Assistant Professor, Microelectronics System Design Master Program, Nile University

Bio:lobna

Lobna A. Said was born in Cairo, Egypt. She received her PHD, M.Sc. and B.Sc. (with highest honors) degrees in electronics and electrical communications engineering from Cairo University, Giza, Egypt, in 2016, 2011 and 2007, respectively. She is currently a Full-time Assistant Professor at Nile University. Previously, she worked at the German university In Cairo (GUC) as a Part-Time Assistant Professor in 2016 and as Assistant Lecturer (Full-Time) from 2007-2016.

Her research interests are in Analog integrated circuits, Digital integrated circuits, Fractional order circuits and systems, Non-linear analysis and chaos theory, Fractional order biomedical applications, Fractional calculus.

During her MSc. and PHD, she was able to publish more than 20 international papers in top ranked journals and conferences in the field of fractional-order circuits, Analog electronics, circuits and systems, and Chaos theory. Currently She is working in biomedical engineering modeling through a project with Nile University which aim to Merge and integrate together interdisciplinary concepts from mathematics (fractional-calculus), circuit theory, circuit modeling (Cole-Cole, and Debye), wireless (protocols), statistics (database), and agriculture (fruits and vegetables) in a theoretical and experimental frame-work.


Afternoon  Tutorials (14:00 – 16: 00)

Tutorial # 3: From Wireless Sensor Networks to the Internet of Things

The Internet of Things (IoT) technology is currently shaping different aspects of human life. In IoT systems, different pieces of information are gathered from almost anywhere and anything in the world and are made accessible through the Internet. Wireless Sensor Networks (WSNs) have been widely considered as one of the most important technologies for the future Internet of Things. Unlike traditional wireless communication networks, such as cellular systems and mobile ad hoc networks (MANET), WSNs have several unique characteristics including denser level of node deployment, higher unreliability of sensor nodes, and severe energy, computation, and storage constraints. Such unique characteristics of WSN present many new challenges in the development and application of WSNs. The integration of WSNs with IoT resulted in a plethora of applications such as smart-cities, remote healthcare, energy and water control, precision agriculture, wildlife monitoring, structural and ancient building monitoring, etc.

This tutorial presents the fundamentals and challenges of WSNs and the IoT. Two prominent applications that exploit the gains of such technologies are presented; namely, precision agriculture and remote health monitoring for assisted living. The use IoT in precision agriculture increases the efficiency, productivity and profitability of many agricultural production systems. Real-time environmental information can be remotely gathered from the agricultural fields and transferred to where it can be processed to discover problems, store data, and/or take needed actions. This contrasts with the traditional agricultural approaches in which decisions are taken based on some hypothetical average condition, which may not reflect reality. Health monitoring, rehabilitation, and assisted living for the elderly and medically challenged humans is an emerging challenge because they require seamless networking between people, medical instruments, and medical and social service providers.  This motivates the need for wearable IoT devices that will improve the quality of life for many elderlies and physically-challenged people.

Instructor : Dr. Ahmed Khattab,  Assistant Professor in the Electronics and Electrical Communications Engineering Department at Cairo University and adjunct Assistant Professor in the American University in Cairo (AUC).

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Bio:

Amed Khattab is an Assistant Professor in the Electronics and Electrical Communications Engineering Department at Cairo University. He is also adjunct Assistant Professor in the American University in Cairo (AUC). He received his Ph.D. in Computer Engineering from the Center for Advanced Computer Studies (CACS) at the University of Louisiana at Lafayette, USA, in 2011. He received a Master of Electrical Engineering Degree from Rice University, USA, in 2009. He also received M.Sc. and B.Sc. (Honors) degrees in Electrical Engineering from Cairo University, Cairo, Egypt, in 2004 and 2002, respectively.

His main research interests are in the broad areas of wireless networking and radio resource management with emphasis on the cross-layer design, optimization, and implementation of PHY/MAC protocols for high performance wireless networks. His research experience ranges from wireless sensor networks and the Internet of Things (IoT) to distributed opportunistic spectrum management for cognitive radio networks, carrier-sense multiple access for multi-antenna 802.11 networks, resource management and scheduling in 4G and beyond wireless networks, and vehicular networks.

Dr. Khattab has authored/co-authored 3 books, over 45 journal and conference publications, and a patent application. He serves as a reviewer in many IEEE transactions, journals and conferences, and is a member of the technical committee of several prestigious conferences such as IEEE Globecom, IEEE ICC, IEEE ICCCN, and IEEE WF-IoT. He won the best student paper award from the IEEE Computer Society at the University of Louisiana at Lafayette chapter twice in 2010 and in 2011, and was a finalist in the best paper award contest in the IEEE ICCCN 2008 conference. He also received Texas Instruments Distinguished Endowed student fellowship in 2005.