GENERAL

A

area, cross-sectional area

A _H

Hamaker constant

B

2? ² L ² = 3 L ²/ ? R ² ? ₀, polymer extensibility

B

smectic-layer compressive modulus

B

E ^T E, Finger strain sensor

C

B ^?1, Cauchy Strain Tensor

Ca

, capilary number

C _?

charecterstic ratio, defined by ? R ² ? ₀ = C _? nb ² _n

D

translational diffusivity

D

closest separation distance between surfaces

D

dimensionality

D _f

fractal dimension

D

[ ? v + ( ? v) ^T], rate of strain tensor

De

?/ t _f, Deborah number

D _r

rotational diffusivity

D _r0

rotational diffusivity in dilute solution

D _s

short-time diffusivity

E

energy

E

electric field

E

? x/ ? x ?, inverse defonnation gradient tensor

Er

, Ericksen number

E _sciss

energy of scission of a wonn-like micelle

F

force, free energy

F

force vector

F

E ^?1, defonnation-gradient tensor

G

modulus

G ?

storage modulus

G ?

loss modulus

G ?

G ? + iG ? or [( G ?) ² + ( G ?) ²] ^1/2, complex modulus

G ⁰ _N

entanglement plateau modulus

H

enthalpy

H

( R ^?1 ₁ + R ^?1 ₂), mean curvature of surface (Chapter 12)

H

magnetic field (Chapter 8)

I

scattering intensity

K

R ₁ R ₂, Gaussian curvature of surface (Chapter 12)