The coefficient of {HEAD ~ particle configuration} is represented by a value obtained by dividing the square of the circumference of {TAIL ~ the particle cross section} by 4 π times the cross sectional area of the particle 
The coefficient of { HEAD ~ particle configuration } is represented by a value obtained by dividing the square of the circumference of { TAIL ~ the particle cross section } by 4 π times the cross sectional area of the particle
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH