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.
It is associated with the presence of pools and riffles in the river bed. The erosion and deposition of river load by helicoidal flow is responsible for the creation of meanders.The top current hits against the river bank, undercutting and eroding material from it.t is associated with the presence of pools and riffles in the river bed. The erosion and deposition of river load by helicoidal flow is responsible for the creation of meanders. The top current hits against the river bank, undercutting and eroding material from it.