Other factors that affect liquid flow rate include the liquid's viscosity and density, and the friction of the liquid in contact with the pipe. Direct measurements of liquid flows can be made with positive-displacement flowmeters. These units divide the liquid into specific increments and move it on.
And while the number of people dying while waiting for an organ transplant has decreased from 614 in 2011 to 469 in 2014, there have still been 195 individualsâ deaths this year after patients failed to find a donation in time.
Last year, more than 28,000 people received organ transplants, more than 40,000 received corneal transplants and hundreds of thousands received tissue transplants, yet 6,590 died awaiting organ transplants. A surge in the number of donors is necessary to save more lives.