Finally, the function dn ( M, z ) / dM is the " theoretical mass function ", the differential version of the cumulative number density function discussed above.
42.
Attaching graphene functionalized with silane molecules increases its thermal conductivity ( " ? " ) by 15 % 56 % with respect to the number density of molecules.
43.
A differential equation called the " Aerosol General Dynamic Equation " ( GDE ) characterizes the evolution of the number density of particles in an aerosol due to these processes.
44.
If and are the number densities of the atom in states 1 and 2 respectively, then the rate of change of these densities in time will be due to three processes:
45.
Where is the drift velocity of electrons, is the current density flowing through the material, is the charge-carrier number density, and is the charge on the charge-carrier.
46.
That is, the mean free path of the photons is inversely proportional to the electron ionisation fraction and the baryon number density ( \ mathit { n } _ \ mathit { b } ).
47.
For conditions of thermodynamic equilibrium, together the number densities n _ 2 and n _ 1, the Einstein coefficients, and the spectral energy density provide sufficient information to determine the absorption and emission rates.
48.
Where Z is the compressibility factor, \ rho is the overall number density of the mixture, and \ ln \ mathbf { B } is a mole-fraction weighted average over all mixture components:
49.
The current can be written as I =-A n e v where n is the free electron number density, v the ( average ) velocity, and e the magnitude of the electron charge.
50.
Given a total interaction barns ), the mean free path of a prompt neutron is \ ell ^ {-1 } = n \ sigma where " n " is the nuclear number density.
