buoyant density การใช้

In order to test hypotheses for how DNA replicates, Meselson and Stahl, together with Jerome Vinograd, invented a method that separates macromolecules according to their buoyant density.
Where the viral particles migrate in the tube ( closer to the top, or closer to the bottom ) is an indication of their size, and hence buoyant density.
This is where the equation can become confusing, and the effective stress can be calculated using the buoyant density of the spheres ( soil ), and the height of the soil above.
If samples are centrifuged long enough, the particles in the vessel will reach equilibrium wherein the particles accumulate specifically at a point in the vessel where their buoyant density is balanced with centrifugal force.
Using this technique, investigators can reexamine : i ) the relationship between age and buoyant density of erythrocytes, ii ) erythrocyte destruction through a random removal mechanism, and iii ) the expression of phosphatidylserine on aging erythrocytes.