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.
1 On average, 21 people die every day from the lack of available organs for transplant. 2  Seven percent of people on the waiting listâmore than 6,500 each yearâdie before they are able to receive a transplant. The cornea is the most commonly transplanted tissue. 2  More than 40,000 corneal transplants take place each year in the United States. 3  A healthy person can become a âliving donorâ by donating a kidney, or a part of the liver, lung, intestine, blood or bone marrow. 4  More than 6,000 living donations occur each year.