TABLE OF CONTENTS A boldface lowercase indicates a vector, and a boldface uppercase letter indicates a tensor; Roman letters are used when proper names are referred to.
| a | interatomic spacing (lattice constant), m |
| a s | speed of sound in fluids, m/s |
| a | acceleration vector, m/s 2 |
| a e | vector potential, A-kg/m |
| A | cross-sectional area, m 2 |
| b e | magnetic field vector, V-s/m 2 |
| c o | speed of light in vacuum, 2.998 10 8 m/s |
| c p | specific heat capacity at constant pressure, J/kg-K, or J/K |
| c ? | specific heat capacity at constant volume, J/kg-K, or J/K |
| D | Debye, units of electric dipole moment, 3.3356 10 ? 3 0 C-m |
| D | diameter, m |
| D i ( E) | energy density of states, 1/m 3-eV, for carrier i |
| D i ( ?) | frequency density of states, 1/m 3-rad/s, for carrier i |
| d | displacement vector, m |
| E | energy, J |
| E p | bulk modulus, Pa |
| E Y | Young modulus, Pa |
| e | specific energy, J/kg |
| e c | electron charge, 1.602 10 ? 1 9 C |
| e e | electric field intensity vector, V/m |
| Fo | Fourier number |
| F | force vector, N |
| f | frequency, 1/s or Hz |
| f i | probability distribution function for carrier i |
| g | degeneracy |
| g | gravity vector, m/s 2 |
| G N | Newton (gravitational) constant, 6.673 10 11 m 3/kg-s 2 |
| G | shear... |
