Effect of lockdown amid second wave of COVID-19 on environmental noise scenario of the megacity Delhi, India
This paper analyzes the impact of second wave of COVID-19 lockdown on environmental
noise levels of 25 sites in Delhi city and compares the noise scenario during pre-lockdown …
noise levels of 25 sites in Delhi city and compares the noise scenario during pre-lockdown …
[PDF][PDF] Duct quiet zones utilization for an enhancement the acoustical air-condition noise control
MM Kamel, ESSA Said… - International Journal of …, 2022 - researchgate.net
This paper investigates the duct's noise distribution pattern due to the heating, ventilation,
and air conditioning systems. This study is considering the longitudinal sound wave …
and air conditioning systems. This study is considering the longitudinal sound wave …