Faculty of Engineering

Impact of Different Factors on Hyporheic Exchange in a Meandering Pool-riffle Stream

The hyporheic zone (HZ) is the region of saturated sediment surrounding a stream which connects surface water and groundwater flow. The overlying water with dissolved matters infiltrates into the HZ, stays there for some time and interacts with groundwater, and exfiltrates out of the HZ, resulting in hyporheic exchanges (HE).

Most of the rivers are designed with narrow bottom section and large upper section of concrete streambed which results in bad river eco-system. In recent decades, more and more stream restoration projects involve the recovery of HE, however, effective guidance in restoring HE is still missing. Therefore, this study aims to examine the effectiveness of different key factors (e.g., stream discharge, slope, sinuosity and groundwater flow) in restoring HZ in a meandering channel with floodplain using flume experiments and numerical simulations.

Fire Evacuation Assistance Robot

How occupants can evacuate during emergency in High-Rise building has raised different engineer’s concern since last century. The aim of this project is to develop an autonomous robot that assists the emergency evacuation of the disability and injuries in the Temporary Refuge Space and Refuge Floor. The immediate assistance is a combination of urgent medicine delivery, remotely monitor of patient’s status (from face expression judge the urgency) and task assignment from the building management office. The robot is designed to work with other smart cities system like SCADA and Building Management System (BMS) under Artificial Intelligence & Internet of Things Internet Of Thing (AIoT) network, so that the building management can access, monitor, and control the robot from anywhere in the world.

The Solaris Hybrida

The Solar H stands for Solaris Hybrida, which is the latin of Solar Hybrid. It is a revolutionary lighting experience that combines conventional solar tube that diverts light into buildings, solar powered led, solar-tracking panels and the unique modular add-ons.

Social Networking Mobile App – Reciprocating and healing yourself

We want to build a platform where people can share their trauma, loneliness, distress, thought, and experience to others without fear to be criticised and can easily get support from people instead. Through or writing journals sharing stories with others can not only have a better understanding to oneself or other people, but it also helps building a high quality relationship and improve the sense of connectedness, which is beneficial for mental health and well-being for an individual and the society.

SNAPP the SAR Fish

“SNAPP”, The Search and Rescue (SAR) Robotic fish is a fast-swimming robotic fish that strengthens the capacity of search and rescue operations, with unparalleled underwater mobility through its unique fish-like design. It provides floating support and towing capability in the absence of lifeguards. SNAPP currently holds the Guinness World Record for the fastest robotic fish at 2.3 m/s.

Drowning is the 3rd leading cause of injury and death. SNAPP’s potential as the fastest swimming robot in alleviating this issue is centralised on the golden rule of rescue: “In a drowning situation, timing is essential.”

Our team is currently working on enhancements to its design, taking into account SNAPP’s performance in turbulent waters, integration of communication devices, and improved buoyancy.

Health-monitoring Integrated Patch

Vital signs monitoring like heart rate and blood oxygen saturation (SpO2) is important for athletes such as marathon runners. Sudden changes or any abnormal values may be warnings of deteriorating body condition caused by fatigue, heat exhaustion and hidden heart diseases which can be fatal.

Thus, we propose a smart, lightweight and waterproof integrated health monitoring patch using optical characteristics (measuring heart rate, blood oxygen (SpO2) level, body temperature and blood glucose level) that sticks onto the skin. Together with GPS tracking and bluetooth function, data can be transmitted to computers and mobile phones wirelessly along aid stations for continuous monitoring. Powered by human body motion, it is safer than using cell batteries and also more portable. When abnormalities are spotted, emergent medical help can be offered before the condition becomes irreversible.

Analysis and Visualization of MTR Passenger Behavior During COVID-19

With the help of Professor Reynold Cheng we have acquired daily MTR transactions for the months January to August for 2019 and 2020. This data contains 6 columns including Passenger ID, Card type, Entry Station, Exit station, Entry Time and exit time.
We aim to explore and analyse this data to find relation between COVID19 spread and public transport.

We also aim to build a platform that would provide easy access to this data to the authorised users. Also provide a high level overview by using Visualisations. Finally, also conduct analysis like Someone like you.

HKU Robocon 2020

The annual Robocon competition project allows HKU engineering students from different disciplines to design and fabricate innovative robots with an integration of various advanced technologies, including IoT sensors, AI, computer vision, and mobile computing. Besides, it provides hands-on experiences on product design, prototyping, CNC machining, design and fabrication of electric circuit and PCB, control program development, etc.