Thai model 8 inch x 20 foot long axial flow pump powered by 12 horsepower two-wheel tractor lifting water from an irrigation canal into nearby rice fields via plastic flexible delivery pipe
12.
Application of mechanical cardiac assistance has evolved from nonpulsatile roller pump support, followed by an era of pulsatile ventricular pumps to the rediscovery of the nonpulsatile flow mode with modern axial flow pumps.
13.
Centrifugal pump impellers have specific speed values ranging from 500 to 10, 000 ( English units ), with radial flow pumps at 500-4000, mixed flow at 2000-8000 and axial flow pumps at 7000-20, 000.
14.
In the centrifugal pumps, the rotors are shaped to accelerate the blood circumferentially and thereby cause it to move toward the outer rim of the pump, whereas in the axial flow pumps the rotors are more or less cylindrical with blades that are helical, causing the blood to be accelerated in the direction of the rotor's axis.
15.
They also stimulated small machinery research and development that resulted by the late-1990s in nearly two million locally produced two-wheel tractors, as well as one million axial flow pumps for irrigation, hundreds of thousands of small horsepower rice threshers, and 10, 000 small horsepower caterpillar track-propelled combines that are able to harvest in small, fragmented, and still wet fields
