Electrical and Electronic Engineering
Study across the spectrum of electrical and electronic engineering and gain the skills to solve some of todays biggest engineering challenges. Find out more.
- Event
- Date:
- 8th of March, 2018 @ 16:00 - 17:00
- Venue:
- New Mountbatten (53) - 4025
Event details
This talk will present a new approach for a secure and energy efficient link layer protocol for IoT applications- Event
- Date:
- 14th of February, 2019 @ 16:00 - 17:00
- Venue:
- New Zepler (59) - 4025
Event details
Title: Water Droplet Impact Energy Harvesting with Lead-free Piezoelectric Structures Abstract: Harvesting energy from ambient sources using piezoelectric transducers is a topic which has seen a tremendous amount of interest from the scientific community, with research into lead-free piezoelectric materials seeing increased activity in recent times. The practicality of energy scavenging technology looks set to see continued relevance with decreasing power demands of electrical systems, such as Wireless Sensor Networks (WSN), allowing such technology to progressively act as an energy source to drive and sustain them independently. Furthermore, energy harvesting technology is likely to play both an exciting and critical role in the growth of the Internet of Things (IoT) concept. This is particularly true in the case of remote/hard to access applications which require a power source – energy harvesting technologies such as piezoelectric materials offer a an opportunity to prolong, or even replace, battery powered applications, providing a solution which lowers servicing requirements. In this research, the opportunities for utilising piezoelectric transducers for converting the kinetic impact energy of falling water droplets into useful electrical energy is investigated. It has been demonstrated that falling water droplets can impart forces of over a thousand times their resting weight upon impact with solid objects. Tropical countries such as Colombia, Papua New Guinea and Malaysia experience heavy rainfall throughout the year, with total annual rainfall amounts in the region of 3,000 mm. Such deluges of large droplets impart notable impact forces upon natural and man-made structures, representing an interesting opportunity for further investigation into potential uses of this energy, such as smart city sensor technologies.- Event
- Date:
- 2nd of August, 2018 @ 16:00 - 17:00
- Venue:
- New Mountbatten (53) - 4025
Event details
Title: Ultra-low power systems for long running IoT applications Abstract: SoftBank CEO Masayoshi Son stated that “In the next 20 years, we will see 1 trillion Internet of Things devices”. Many of these will be in homes, offices and cities where power supply is available, however, for many of these devices, remote operation is more desirable. Energy harvesting enables long-term operation of sensor devices as part of the IoT, but combination with batteries still has a number of shortfalls. I am currently in my 10th month of study, and I will give this short presentation in the hope of explaining how remote sensing systems can operate directly from energy harvesting through “transient computing”, the improvements I have proposed to the existing approaches, and my intentions for further research as the PhD progresses.- Event
- Date:
- 21st of November, 2019 @ 12:00 - 14:00
- Venue:
- Eustice (5) - 2011
Event details
Title: Using Wireless Sensors for Structural Health Monitoring of Wind Turbines Abstract: Structural health monitoring and damage detection of civil structures are of increasing importance in applications, in which reliability, security and optimisation play an important role. In the wind energy sector, they help to reduce operating downtimes, minimize security risks and thereby contribute to increased competitiveness of renewable energies. In most monitoring approaches, sensors are placed on the inside of rotor blades, however, retro-fitting of monitoring systems is desirable. Therefore, sensor placement on the outside of rotor blades is a promising solution. Main challenges of mounting sensors on the outside of wind turbine blades include positioning, energy harvesting and wireless transmission and will be addressed in this talk. First promising results have been achieved by placing a light-weight low-profile MEMS accelerometer at the tip of a blade. Vibration frequencies, circular loading and turbine settings have been analysed for a two-month test period and indicate potential for detecting increased loads and vibrations due to damage or nonideal turbine settings. Additionally, suitable data analysis methods have been developed to detect alternating loads subject to wind effects such as wind shear, yaw, and tower shadow. The overall aim of this approach is to draw conclusions regarding the condition of the blade and to determine influences such as aging and deformation.- Event
- Date:
- 10th of May, 2018 @ 16:00 - 17:00
- Venue:
- New Mountbatten (53) - 4025
Event details
This talk will focus on Tunable and CMOS-compatible THz emitter based on nonlinear mixing in microring resonator- Event
- Date:
- 28th of February, 2019 @ 16:00 - 17:00
- Venue:
- New Mountbatten (53) - 4025
Event details
Title: Integrated levitated optomechanical system Abstract: An optomechanics system can be defined as one in which light and mechanical system interact. These kind of systems can be found in many forms and sizes, and have been used for high-sensitivity sensing and quantum measurement. Among them, one of the most promising systems is the levitated optomechanics, in which a particle is trapped and thus forms an special optomechanical system. Within these system, the particle’s isolation to the environment results in an extremely high quality factor approaching 1012. In this project, I will explore the combination of macroscopic levitation system and micro-nano fabrication, to enable a integrated levitated optomechanical system, and finally to find applications in biomedicine and high-sensitivity measurement.- Event
- Date:
- 16th of January, 2019 @ 14:00 - 15:00
- Venue:
- Life Sciences (85) - 2207
Event details
Pioneer of the usage and analysis of mobile phone meta-data for development purposes, Flowminder is an award-winning, non-profit organisation funded by the UN Foundation, ECHO, Bill & Melinda Gates Foundation, DFID, EU, World Bank, IDB, WFP and others. Flowminder’s mission is to improve public health and welfare in low- and middle-income countries using data from mobile operators, satellite imagery and geo-located household surveys. Much of its work is focuses on understanding, monitoring and predicting the distributions, characteristics and dynamics of human populations, providing insights, tools and capacity building to governments, international agencies and NGOs. Previous works include support to the humanitarian community in multiple disaster response operations (the Haiti 2010 Earthquake, the Nepal Earthquake 2015 and Haiti Hurricane Matthew 2016) and during disease outbreaks (Haiti cholera, DRC Ebola), analysis of migration patterns and social networks to predict poverty, food insecurity and to gain a better understanding of human mobility in crisis. Partner of the WorldPop programme, Flowminder works together with researchers at the University of Southampton, developing and operationalising new approaches to solving developmental and humanitarian challenges.- Event
- Date:
- 4th of January, 2020 @ 10:00 - 11:00