Can the Twofold Structure of Renormalized Two Parameter Theory Explain Experiments in Good Solvents?

1996 ◽  
Vol 29 (13) ◽  
pp. 4737-4744 ◽  
Author(s):  
Brunhilde Krüger ◽  
Lothar Schäfer
Keyword(s):  
Two Parameter ◽  
Parameter Theory

scholarly journals A two-parameter theory for Venus spectra

1971 ◽  
Vol 40 ◽  
pp. 39-41
Author(s):  
Joseph W. Chamberlain
Keyword(s):  
Absorption Spectrum ◽  
Equivalent Width ◽  
Phase Variation ◽  
Spectral Absorption ◽  
Absorption Coefficients ◽  
Continuum Absorption ◽  
Quantitative Theory ◽  
Physical Reasons ◽  
Two Parameter ◽  
Parameter Theory

An approximate, analytic theory has been developed for the formation of spectral absorption lines in a hazy atmosphere that scatters isotropically and has a homogeneous mixture of scattering and absorbing matter. The behavior – i.e., the curve of growth and the dependence of equivalent width on incident and emergent angles – has been examined for various possible situations, with emphasis on the physical reasons for a particular behavior. It is emphasized that two ratios – essentially the line and continuum absorption coefficients relative to the scattering coefficient – are important in any quantitative theory of the curve of growth and phase variation of the absorption spectrum.

On the two-parameter theory of solitons in magnetic systems

1992 ◽  
Vol 4 (2) ◽  
pp. L47-L50 ◽  
Author(s):  
D V Kapor ◽  
M J Skrinjar ◽  
S D Stojanovic
Keyword(s):  
Magnetic Systems ◽  
Two Parameter ◽  
Parameter Theory

Failure Behavior of Closed Cell Foams

2000 ◽  
Author(s):  
Richard M. Christensen ◽  
Steven J. DeTeresa
Keyword(s):  
Experimental Data ◽  
Failure Behavior ◽  
Refined Theory ◽  
Normal Stresses ◽  
Foam Material ◽  
Closed Cell ◽  
Uniaxial Compressive Stress ◽  
Two Parameter ◽  
Parameter Theory ◽  
Cell Foam

Abstract A two-parameter theory of failure is developed for materials for which the uniaxial compressive stress failure magnitude is less than that for uniaxial tension. The theory is compared with data for a closed cell foam material under combined shear and normal stresses. Although the theory shows the correct general behavior, it probably omits certain finer scale features seen in the data. A more refined theory is now being developed, along with further experimental data.

Extended two-parameter theory for flexible polymer chains

1992 ◽  
Vol 25 (19) ◽  
pp. 4978-4986 ◽  
Author(s):  
Zheng Yu Chen ◽  
Jaan Noolandi
Keyword(s):  
Polymer Chains ◽  
Flexible Polymer ◽  
Two Parameter ◽  
Parameter Theory

DEVIATION FROM CLASSICAL ELASTICITY IN THE ACOUSTIC RESPONSE OF AUXETIC FOAMS

2017 ◽  
Vol 90 (2) ◽  
pp. 381-386 ◽  
Author(s):  
M. D. Guild ◽  
C. N. Walker ◽  
D. C. Calvo ◽  
P. H. Mott ◽  
C. M. Roland
Keyword(s):  
The Other ◽  
Acoustic Properties ◽  
Acoustic Response ◽  
Classical Elasticity ◽  
Linear Elastic ◽  
A Value ◽  
Fused Quartz ◽  
Disk Sample ◽  
Two Parameter ◽  
Parameter Theory

ABSTRACT Acoustic properties of an auxetic foam were measured to validate a previously proposed lower bound for Poisson's ratio, ν ≥ 1/5, inferred from classical two-parameter elasticity theory. This limit differs from the commonly reported lower limit of −1 for isotropic materials in the linear elastic range. For a foam measured to have a value of ν > 0.2, agreement was found between the measured flexural resonance frequency of a disk sample and the theoretical value. On the other hand, for an auxetic sample (ν < 0), the prediction from the two-parameter theory was significantly in error. Thus, for materials having ν < 1/5 (auxetic foams, as well as very hard solids such as diamond, germanium, and fused quartz), the equations of classical elasticity are invalid.

scholarly journals Further Test of the Two-Parameter Theory of Dilute Polymer Solutions: Poly(p-bromostyrene)

1971 ◽  
Vol 2 (2) ◽  
pp. 245-256 ◽  
Author(s):  
Koichi Takashima ◽  
Genzo Tanaka ◽  
Hiromi Yamakawa
Keyword(s):  
Polymer Solutions ◽  
Dilute Polymer Solutions ◽  
Two Parameter ◽  
Parameter Theory
Sign in / Sign up

Export Citation Format

Share Document