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Full-Text Articles in Engineering
Air Quality Near Busy Australian Roads Up To 10 Times Worse Than Official Figures, Hugh I. Forehead
Air Quality Near Busy Australian Roads Up To 10 Times Worse Than Official Figures, Hugh I. Forehead
SMART Infrastructure Facility - Papers
Air quality on Australia’s roads matters. On any given day (when we’re not in lockdown) people meet, commute, exercise, shop and walk with children near busy streets. But to date, air quality monitoring at roadsides has been inadequate. I and my colleagues wanted to change that. Using materials purchased from electronics and hardware stores for around A$150, we built our own air quality monitors. Our newly published research reveals how our devices detected particulate pollution at busy intersections at levels ten times worse than background levels measured at official air monitoring stations.
Assessing The Effects Of Mobility On Air Quality: The Liverpool Smart Pedestrian Project, Nicolas R. Verstaevel, Johan Barthelemy, Hugh I. Forehead, Bilal Arshad, Pascal Perez
Assessing The Effects Of Mobility On Air Quality: The Liverpool Smart Pedestrian Project, Nicolas R. Verstaevel, Johan Barthelemy, Hugh I. Forehead, Bilal Arshad, Pascal Perez
SMART Infrastructure Facility - Papers
With the drastic increase of their urban population, cities face huge challenges to maintain and update their infrastructures. Assessing in real time the effect of urban policies will be a key tool in the future of urban planning. In this paper, we discuss of mobility and its impact on air quality. We introduce a pilot project in which low cost IoT sensors are used to monitor flow of cars and pedestrians and concentration of particulate matters within the Australian city of Liverpool.
Air Void Detection Using Variational Mode Decomposition With Low Rank, Fok Hing Chi Tivive, Abdesselam Bouzerdoum, Shivakumar Karekal
Air Void Detection Using Variational Mode Decomposition With Low Rank, Fok Hing Chi Tivive, Abdesselam Bouzerdoum, Shivakumar Karekal
Faculty of Engineering and Information Sciences - Papers: Part B
This paper presents an air-void detection technique for air-coupled radar, which emits electromagnetic waves to interrogate an air-void inside a medium or between two media. The reflections from the air-medium interfaces are usually corrupted by air-coupling, antenna ringing, and internal reflections, rendering air-void detection very difficult or, in certain cases, impossible. The proposed method exploits the low-rank structure of the background clutter to suppress these nuisance signals. A variational mode decomposition model is developed to extract the backscattering at different air-medium interfaces as signal modes. Real experiments are conducted using a stepped frequency radar. The experimental results show that the …