ABSTRACT
In December 2021, the Central Economic Work Conference clearly pointed out that China's economic development and epidemic prevention and control will maintain a leading position in the world, the national strategic scientific and technological strength will accelerate and grow, and the resilience of the industrial chain will be improved. Tourism economic resilience is the ability of the tourism industry to cope with external disturbances and adjust its own development path after resisting shocks. Based on the analysis of the relationship between the epidemic and the resilience of the tourism economy, this article further explains the relationship between resilience and the tourism industry and how to improve the resilience of the tourism economy and help the high-quality development of the tourism industry.
ABSTRACT
Cough detection has aroused great interest because the assessment of cough frequency may improve diagnosis accuracy for dealing with several diseases, such as chronic obstructive pulmonary disease (COPD) and the recent COVID-19 global pandemic crisis. Here, we propose and experimentally demonstrate a wireless smart face mask based on a passive harmonic tag for real-time cough monitoring and alert. Our results show that the cough events can be successfully monitored through non-contact track of the received signal strength indicator (RSSI) at the harmonic frequency. Owing to the frequency orthogonality between the launched and backscattered radio-frequency (RF) signals, the harmonic tag-based smart mask can well suppress the electromagnetic interferences, such as clutters and crosstalks in noisy environments. We envision that this zero-power and lightweight wireless wearable device may be beneficial for cough monitoring and the public health condition in terms of tracking potential contagious person and virus-transmissive events.