Faculty of Engineering

New Geo-material for Reclamation: Utilizing local marine deposit and fly ash for backfilling

Hong Kong is facing an increasing demand of reclamation land use. However, we are facing an unstable supply and increasing price of the tradition backfilling material – sand. Therefore, we need to investigate an alternative. Ash-strengthed marine deposit can be a solution. Marine deposit can gain strength after mixing with cement, coal ash and water. This material can also reuse contaminated marine deposit. Therefore, the feasibility of using ash-strengthened marine soil is going to be investigated.

PET Plastics Degradation

Our team is developing a self-sustaining system that digests PET plastic using the symbiotic relationship between the bacteria Escherichia coli and the cyanobacteria Synechococcus elongatus. We engineer E. coli to express PETase and MHETase enzymes and to absorb sucrose secreted by S. elongatus, which E. coli uses as its energy source. The PETase and MHETase enzymes facilitate the degradation of PET into its monomers – terephthalic acid (TPA) and ethylene glycol (EG), which can then be repurposed in the creation of new bioplastics to maintain a circular and greener supply chain.

Oxiglasses

It is a portable and hand-free pulse oximeter where it consists of a eyeglasses probe with see-through panel. Real-time display of heart beat rate and SpO2 level can be observed by using a reflective sensor located near-ear. It can be apply on firemen’s protective helmet to check their SpO2 level during rescue which can prevent them suffer from hypoxemia.

HINCare: An intelligent Timebanking System for Elderly Care @ 5th Inno Show

With a rapidly ageing population in Hong Kong, there is a need to provide more volunteer services to the elderly. We introduce HINCare, an app that encourages mutual-help in the community. HINCare adopts the concept of timebanking, where each user has his/her own account to store the amount of time (”time credits”). Users earn time credits by providing services to others. The user can use the time credits to purchase other services. Moreover, HINCare uses HIN (Heterogeneous Information Network) to recommend helpers to elders.

Vera – An AI Speech Therapist

Vera overcomes temporal, spatial, and financial barriers faced by children with speech disorders in Hong Kong, and tackles the problems faced by speech therapists. Vera is an AI-powered mobile application making use of deep learning and big data to provide accurate and immediate diagnosis and personalized treatment of speech sound disorders for children. Vera also provides speech therapists with resources that help children practice pronunciation, and progress reports that allow tracking of patients’ progress. The interactive diagnosis process is facilitated by a conversing chatbot. After diagnosis, Vera provides personalized and gamified pronunciation exercises to encourage children to receive treatment actively.

Depression Testor

Depression is a prevalent disorder that impairs psychosocial functioning and lowers the quality of life. Low mood, loss of energy, sleeplessness, and an inability to enjoy life are depression’s significant symptoms. World Health Organization ranked unipolar depressive disorder as the third cause of disease burden in 2004 and expected it to be the leading cause by 2030. For this disease, a low diagnosis rate is a big problem, partially because of the current technology’s limitations, such as clinical-based, trigger-less, costly. So, our project comes up with a novel idea by using flash stimulus and GSR sensor to test people’s physiological reactions towards different triggers for self-prevention and preliminary diagnosis use.

Quantum Demonstrator Kit @ 5th Inno Show

The Quantum Demonstration Kit (QDK) is a playful interactive and gamified version of a quantum physics experimental setup, designed to demonstrate key concepts of quantum mechanics to young beginner students to enhance their overall understanding of the subject. The key novelty of our product design, is that it is portable, cost-effective, and simple enough to be operated by young undergraduate/school students independently themselves. On the contrary, quantum physics setups routinely used in research labs are bulky, expensive and extremely complicated, making them unsuitable to be used for hands-on laboratory based education for beginners to this field.