Conditions commonly identified by chest radiography. 1  Pneumonia. 2  Pneumothorax. 3  Interstitial lung disease. 4  Heart failure. 5  Bone fracture. 6  Hiatal hernia.
Helicoidal flow is a contributing factor to the formation of slip-off slopes and river cliffs in a meandering section of the river.he helicoidal motion of the flow aids the processes of hydraulic action and corrasion on the outside of the meander, and sweeps sediment across the floor of the meander towards the inside of the meander, forming point bar deposits.
The helicon, thought to have been invented in Russia circa 1845, was designed to be a marching horn, carried on the shoulder. This bass instrument was the forerunner of the Sousaphone, which is the self-same instrument with a directional bell grafted on.