Publications by authors named "A W Yuen"
Article Synopsis
- - A new fire suppression gel foam (FSGF) was developed to enhance flame resistance for liquid fuel fires, showing better performance compared to traditional aqueous film-forming foam (AFFF).
- - The FSGF demonstrated improved thermal stability and extinguishing capabilities, with tests indicating it takes 72 seconds to extinguish fires and resists re-ignition for 801 seconds.
- - Molecular dynamics simulations revealed that a porosity layer on the foam's film helps with heat resistance, while calcium compounds in the foam promote the formation of char that aids in fire suppression.
Background: Sensitisation to is linked to worse outcomes in patients with COPD; however, its prevalence and clinical implications in domestic (residential) settings remains unknown.
Methods: Individuals with COPD (n=43) recruited in Singapore had their residences prospectively sampled and assessed by shotgun metagenomic sequencing including indoor air, outdoor air and touch surfaces (a total of 126 specimens). The abundance of environmental and the occurrence of (Asp f) allergens in the environment were determined and immunological responses to allergens determined in association with clinical outcomes including exacerbation frequency.
With rapid advancements in aerospace and supersonic aircraft technology, there is a growing demand for multifunctional thermal protective materials. Aerogels, known for their low density and high porosity, have garnered significant attention in this regard. However, developing a lightweight multifunctional aerogel that combines exceptional thermal and mechanical properties through a straightforward and time-efficient method remains a significant challenge.
View Article and Find Full Text PDFModern polymer coatings possess tremendous multifunctionalities and have attracted immense research interest in recent decades. However, with the expeditious development of technologies and industries, there is a vast demand for the flame retardancy and electrical conductivity of engineered polymer coatings. Traditional functional materials that render the polymer coatings with these properties require a sophisticated fabrication process, and their high mass gains can be a critical issue for weight-sensitive applications.
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- Alphavirus infections are spread by mosquitoes, whereas the transmission method of Mycobacterium ulcerans, responsible for Buruli ulcer, is still debated.
- Research using notification data from Victoria, Australia, from 2017 to 2022 shows a close correlation between the seasons of alphavirus and Buruli ulcer cases.
- This alignment supports the theory that Mycobacterium ulcerans could also be transmitted by mosquitoes.