Modeling cumulative cases of Covid-19 in Yazd city using various time series techniques and machine learning and comparing their efficiency

Coronavirus disease 2019 or Covid-19, which is also called acute respiratory disease NCAV-2019 or commonly called corona, is a respiratory disease caused by acute respiratory syndrome coronavirus-2.Forecasting the number of new cases and deaths during todays can be a useful step in predicting the costs and facilities needed in the future.This study

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The effect of the blowing and suction from one or two positions over the suction surface of NACA0012 airfoil on aerodynamic performance in turbulent flow

One approach to improve the aerodynamic performance of airfoils and hydrofoils is inject a small amount of energy to the system (such as fluid injection or suction on the surface), to change the lift and drag.In fact, surface suction and blowing of the fluid can improve the pressure distribution and velocity gradient on the airfoil/hydrofoil surfac

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