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Trajectory optimisation of non-Keplerian, displaced Geostationary Orbits with loose position constraints (08 December, 2017)
Speaker: Yuan Liu
The geostationary orbit (GEO) is a circular, equatorial orbit whose period equals the Earth’s rotational period. It allows a satellite to be stationary above a certain point on the Earth’s equator. With the advantage of being stationary, GEO satellites are largely used for telecommunications and Earth observation. The GEO is a unique and currently very congested orbit, especially at longitudes above densely populated areas. In this presentation I will introduce some works about trajectory optimisation for the displaced GEO with loose position constraints. The works mainly focus on the hybrid-sail propellant system for both single spacecraft and multi-spacecraft formation cases.
Surface Enhanced Raman Scattering (SERS) sensors for the detection of pollutant in water (28 November, 2017)
Speaker: Dr Nathalie Lidgi-Guigui
Abstract: The Raman scattering is a well known analytical chemistry technique where the light is scattered by the vibrating bounds of a molecule. As so it gives a molecular fingerprint of a specific compound. However, Raman scattering is not a very sensitive technique. To circumvent this drawback, it is possible to take advantage of the optical properties of metallic nanoparticles (NP). When exposed to light, coherent oscillations of the free electron gas are taking place on the NP. These so called Localized Surface Plasmon (LSP) create an electromagnetic field which is the basis of the near field enhancement of Raman scattering. This electromagnetic effect is responsible for an enhancement factor that can be as high as 10^8. Another effect, the chemical effect, has a weaker contribution to the Raman scattering enhancement. Its origin is discussed among the community but is probably based on the shifting of the molecules energy levels when it is bound to the NP surface.
In this talk we will focus on the use of SERS substrate for the detection of pollutant in water. We will present results concerning hydrophobic and hydrophilic compounds. The first are organic molecules, consisting of two or more fused aromatic rings known as polycyclic aromatic hydrocarbons (PAHs). This group of compounds have received considerable attention due their toxicity and carcinogenicity. The hydrophilic compound that we have worked on is paracetamol. This is the most used drug around the world and as so it is highly found in waste water. However, in order to study its impact on the marine environment it is first needed to be able to quantify its presence.
Obviously, these two class of pollutants do not present the same issues in terms of sensing. In the first case it is important to reach a very low limit of detection when the quantification and the specificity are the key for the hydrophilic pollutants. We will present the strategy of surface functionalization we have adopted in both case that include the use of Molecular Imprinted Polymers (MIP) for the detection of paracetamol and the exploitation of pi-pi stacking for the detection of naphthalene, fluoranthene and benzo[A]pyrene.
In the last part of the talk, I will show how the nanostructured surface can play an active role in the functionalization. We have recently demonstrated that the LSP can support chemical reactions such as the well known click chemistry thiol-ene reaction. It is even possible to go further and to performed a different functionalization on different direction of a nanostructure by taking advantage of the light polarization.
Biography: After completing my undergraduate studies in material sciences at the University Pierre and Marie Curie in Paris, I followed my interest in nanotechnologies by enrolling in a doctoral program at the Unité Mixte de Physique CNRS Thales where I developed my field of expertise the nanoparticles growth and their electronic properties. After obtaining my Ph.D. in 2005, I joined the team of Prof. R. E. Palmer at the University of Birmingham where I studied the growth and deposition of size selected clusters and their interactions with proteins. The skills I developed in liquid phase AFM were valued through my second post-doc at the University of Evry. Since 2010 I am a reader at the University Paris 13. My main research interests focus on the development of highly sensitive sensors for biomolecules and pollutants. In my group, we use and develop original lithography techniques to fabricate large assembly of organized nanostructures for SERS (Surface Enhanced Raman Spectroscopy). Through the years we have developed several functionalization paths that have enable us to pre-concentrate analytes, to detect their presence in low concentration and to follow their structural evolution. Recent results are focusing on the possibility of making these sensors active by exploiting the tremendous ideas of plasmon based chemistry.
From iCub to R1 - Building your personal humanoid (13 November, 2017)
Speaker: Prof Giorgio Metta
Abstract: The iCub is a humanoid robot designed to support research in embodied AI. At 104 cm tall, the iCub has the size of a five-year-old child. It can crawl on all fours, walk and sit up to manipulate objects. Its hands have been designed to support sophisticate manipulation skills. The iCub is distributed as Open Source following the GPL licenses and can now count on a worldwide community of enthusiastic developers. The entire design is available for download from the project’s repositories (http://www.iCub.org). More than 30 robots have been built so far which are available in laboratories across Europe, US, Korea, Singapore, and Japan. It is one of the few platforms in the world with a sensitive full-body skin to deal with the physical interaction with the environment including possibly people. I will present the iCub project in its entirety showing how it is evolving towards fulfilling the dream of a personal humanoid in every home.
Short bio: Giorgio Metta is Vice Scientific Director at the Istituto Italiano di Tecnologia (IIT) and Director of the iCub Project at the same institute where he coordinates the development of the iCub robotic platform. He holds a MSc cum laude (1994) and PhD (2000) in electronic engineering both from the University of Genoa. From 2001 to 2002 he was postdoctoral associate at the MIT AI-Lab. He was previously with the University of Genoa and since 2012 Professor of Cognitive Robotics at the University of Plymouth (UK). He is member of the board of directors of euRobotics aisbl, the European reference organization for robotics research. Giorgio Metta research activities are in the fields of biologically motivated and humanoid robotics and, in particular, in developing humanoid robots that can adapt and learn from experience. Giorgio Metta is author of more than 250 scientific publications. He has been working as principal investigator and research scientist in about a dozen international as well as national funded projects.
Talk by Professor Martin Schwartz (08 November, 2017)
Speaker: Professor Martin Schwartz
My lab studies fundamental mechanisms of mechanotransduction in the cardiovascular system and their roles in both normal physiology and disease. Our recent work has revealed novel biophysical aspects by which cells sense matrix stiffness, applied strains and fluid shear stress. We also have new results on how these mechanosensing pathways participate in vascular remodelling, atherosclerosis and cardiac fibrosis. I will present our new data that integrates molecular, cellular and animal studies.
Additive Manufacturing of Metals for the Internet of Things (IoTs) (02 November, 2017)
Speaker: Prof Robert C. Roberts
The Internet of Things (IoT) is projected to create an unprecedented number of smart and connected systems, yielding a pervasive sensor and actuator network, able to interact with the real world. The diversity and complexity of these applications requires engineers to rethink their manufacturing strategies to enable rapid prototyping, lower cost, and allow customization of low-volume components that cannot be achieved using conventional mass manufacturing. Additive Manufacturing (AM), aka 3D printing, has the potential to meet this increasing demand for flexible personalized engineering, by enabling the direct manufacturing of complex components, directly from a digital design. In particular, the additive manufacturing of metals has great potential for IoT applications by enabling the fabrication of components with both useful electrical and mechanical properties. This talk highlights some developments in metal additive manufacturing technology using both inkjet-based deposition and selective laser sintering (SLS). Inkjet additive manufacturing offers promise of low-cost microfabricated electronics, sensors and actuators on unconventional substrates by making use of organo-metallic nanoparticle based “inks” and thus requires a fundamentally different approach when compared to conventional microfabrication techniques. The process dependence on the electrical and mechanical characteristics of the resulting metal structures is explored for both Gold and Silver. These insights are then applied to numerous applications including multilayer RF structures, microfluidic sensors, printed batteries, and strain gauges. In contrast, Select Laser Sintering uses a laser to thermally fuse dry metal powder into solid structures. These metal structures then offer great potential not only as mechanical components, but also as sensors and actuators. Again, process parameter variation is shown to enable the modification of the electro-mechanical properties of the materials and is explored for 316L and 17-4PH Stainless Steel. SLS is then demonstrated for multiple applications including microwave horn antennas, and high-density 3D microelectrode arrays to highlight the exciting future of additive manufacturing for the Internet of Things.
Integrated circuit and system design for next-generation multi-metabolite sensing devices (02 November, 2017)
Speaker: Dr Sara Ghoreishi-zadeh
Abstract: Next-generation implantable and wearable medical devices are emerging to address specific unmet healthcare needs, particularly those in medical monitoring and diagnostics. Monitoring of metabolites (e.g., glucose, lactate) in human body is of significant importance in health-care and personalised therapy. In this talk, I will present our sub-mW CMOS IC that enables the fabrication of miniaturised, inductively powered, and implantable devices for multi-metabolite detection. Next, I will illustrate a novel differential sensing technique to enhance the electrochemical sensing performance. I will also present promising results from our sensors that are developed, for the first time, by growing Pt nano-structures on CMOS IC.
Despite remarkable advances in electrochemical sensor design, the constant need of the sensors for calibration remains a barrier to their diagnostic potential. I will briefly discuss our latest results showing how electrochemical impedance spectroscopy (EIS) may be used to auto-calibrate the sensors. In the second part of the talk, I will present our on-chip interface for recovering power and providing full-duplex communication over an AC-coupled 4-wire lead between active implantable devices.
Biography: Dr. Sara Ghoreishi-zadeh received the B.Sc. and M.Sc. degrees (both with distinction) in Electrical engineering from Sharif University of Technology, Iran, and the PhD degree from Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland, in 2015. She then joined the Centre for Bio-inspired Technology, Department of Electrical and Electronic Engineering, Imperial College London, UK. where she is currently a Junior Research Fellow. Her current research focus is integrated circuit and system design for implantable and wearable medical devices. She has been a Review Committee Member and track chair for IEEE conferences including ICECS 2016 and BioCAS 2017. She is an editor of the Journal of Microelectronics and a member of IET and the IEEE CAS, EMB and SSC societies.
Implantable and Wearable Wireless Medical Sensors (02 November, 2017)
Speaker: Prof JC Chiao
Abstract: Recent advances in micro- and nano-technologies provide unique interfacing functionalities to human tissues, with features of miniaturization and low power consumption. Interfaces between biological objects and electronics allow quantitative measurement and documentation of physiological and biochemical parameters, and even behaviors. The interfaces also provide direct modification of cells, tissues, or organs by electrical stimulation making it possible to manage chronic diseases with a closed loop between body and portable computer. Wireless communication and power transfer in the implantable systems enable in-situ sensing for freely-behaving animals or patients without constrains. Wireless networking also allows ubiquitous access to physiological information for treating complex problems in body.
This lecture focuses on our research progress in wireless micro sensors for clinical and neurobiological applications. The systems are based on integrated platforms such as wireless energy transfer for batteryless implants, miniature and flexible electrochemical sensors, nanoparticle modified surfaces, MEMS devices, and wireless communication. Several implantable, wireless diagnosis and therapeutic systems targeting management of pain and gastric disorders will be discussed with emphases on the sensor technologies. These technologies empower new personalized medicines to improve human welfare and assist better living. Sensor device designs, fabrication, characterization, system integration and clinical experiments will be presented.
Biography: J.-C. Chiao is Greene professor and Garrett professor of Electrical Engineering at University of Texas - Arlington. He received his PhD at Caltech and was with Bellcore, University of Hawaii-Manoa and Chorum Technologies before he joined UT-Arlington in 2002.
Dr. Chiao has published more than 260 peer-reviewed papers and received 12 patents. He received the 2011 O'Donnell Award in Engineering presented by The Academy of Medicine, Engineering and Science of Texas. He received the Tech Titan Technology Innovator Award; Lockheed Martin Aeronautics Excellence in Engineering Teaching Award; Research in Medicine milestone award by Heroes of Healthcare; IEEE MTT Distinguished Microwave Lecturer; IEEE Region 5 Outstanding Engineering Educator; and IEEE Region 5 Individual Achievement awards. His works have been covered by National Geographic magazine, Henry Ford Innovation Nation, National Public Radio and many media.
Currently, he is an IEEE Sensors Council Distinguished Lecturer and serving as the Editor-in-Chief for Journal of Electromagnetics, RF and Microwaves in Medicine and Biology.
Ultrasound in Medicine and Biology (28 October, 2017)
Speaker: Chris Yang
RF & Microwave Fundamentals Seminar (28 September, 2017)
Speaker: Keysight Technologies
From the company that has been a leading innovator in Spectrum and Network measurements for 70 years, please join us for a FREE RF & Microwave Fundamentals Seminar to help improve your understanding of basic Network Analysis and Spectrum Analysis measurements, including real applications, thus improving your efficiency and effectiveness whether you are in R&D or design & test.
A vector network analyzer (VNA) is a precision measuring tool that tests the electrical performance of high frequency components, in the radio frequency (RF), microwave, and millimeter-wave frequency bands (we will use the generic term RF to apply to all of these frequencies). A VNA is a stimulus-response test system, composed of an RF source and multiple measurement receivers. It is specifically designed to measure the forward and reverse reflection and transmission responses, or S-parameters of RF components. S-parameters have both a magnitude and a phase component, and they characterize the linear performance of the DUT. While VNAs can also be used for characterizing some non-linear behaviour like amplifier gain compression or intermodulation distortion, S-parameters are the primary measurement. The network analyzer hardware is optimized for speed, yielding swept measurements that are faster than those obtained from the use of an individual source and an individual receiver like a spectrum analyzer. Through calibration, VNAs provide the highest level of accuracy for measuring RF components.
You can see our latest solutions, and expand on the practical knowledge you need to have to perform your day-to-day-measurements. Application and product experts from Keysight will be on-hand to give demonstrations and technical presentations around the latest innovations, features and capabilities that enhance the fundamental measurements.
This seminar will run through 4 main sessions:
Session 1: Network Analysis Fundamentals and Calibration
1st Section: 9:30am - 10:30 am
Coffee Break 10:30am – 10:45am
2nd Section: 10:45am - 12pm
Lunch 12pm – 1pm
Session 2: 900Hz - 120GHz Broadband Frequency System Presentation, PNA-B models capabilities and application areas + demo
1 - 2pm
Coffee Break 2pm – 2:15pm
Session 3: Cable & Connector care
2:15pm - 3pm
Networking Break 3pm – 3:15pm
Session 4: Spectrum Analyzers Basics
3:15pm - 4pm
Discrete Element Method (DEM) Open Forum & ESyS-Particle Workshop (30 August, 2017)
You are cordially invited to attend a casual gathering of Discrete Element Method (DEM) enthusiasts to discuss current and future trends in particle-based numerical modelling. This $free Open Forum welcomes anyone who currently undertakes scientific or engineering research using DEM software; either Open Source or proprietary. The purpose is to stimulate discussion about DEM software, techniques and methods in a relaxed and collegial manner. Generous breaks and discussion periods will facilitate collaboration and comradery. The forum will also serve to launch ESyS-Particle v3.0; including the recent additions of Darcy flow and self-gravity.
UK-China Emerging Technologies (UCET) workshop (07 August, 2017)
The UK-China Emerging Technologies (UCET) workshop will provide ample opportunity for knowledge exchange and the exploration of joint collaborations between various participants from British and Chinese universities through lectures and field visits covering various areas in the supply chain of emerging technologies and integrated systems. This includes multidisciplinary discussions in electronic systems design, communication, and photonics incorporating:
- Analog/Digital/Mixed/RF IC Design
- Beyond CMOS: Nanoelectronics and Hybrid Systems Integration
- Biomedical Circuits and Systems
- Computer Aided Design
- Energy Harvesting
- 5G and Beyond Cellular Systems
- Flexible Electronics and Wearable Technologies
- Integrated Power ICs
- Internet of Things
- Neural Networks and Neuromorphic Engineering
- Photonics and Optoelectronics
- RF, Microwave and mm-wave Circuits
- Radar Systems and Remote Sensing
- Sensors, Circuits, Systems, Imaging and MEMS
- Signal Processing
- VLSI and SoC Applications
- Wireless Communication Systems
Lectures will also include future directions and will be delivered by leading experts from various fields.
Register to attend by contacting eng-UCET@glasgow.ac.uk.
Recent Progress and Status of Nitride and Photonic Device Research for Next Generation Energy Efficient Network in Korea - Dr Eun-Soo Nam, ETRI (Electronics & Telecommunications Research Institute), South Korea
Fri, 23 Sep 2016 08:12:00 BST
Mon, 11 Apr 2016 22:18:00 BST