Herman's orientation factor
WitrynaThe Hermans orientation factor represents polymer-chain orientation for systems with fiber symmetry (uniaxial orientation) and the Hermans-Stein orientation factors … WitrynaIn Eq. (11.1) (cosx) is the average cosine that the poles of a given family of planes make with the preferred ( fibre axis) direction and (P2 (cosx)) the second order Legendre polynomial of argument (cos ). Equation (11.1) is also known as Herman s orientation parameter, where P2 (cosj ) = 1 corresponds to an ideal case of perfect alignment of ...
Herman's orientation factor
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WitrynaOrientation factors A fi nal factor in the an alysis of the energy-transfer efBcien-cies is the orientation fiuxor K, which is given by In these equations, Or is the angle between the emission transition dipole of the donor and the absorption transition Dependence of the Transfer Rate on Distance (r), the Overlap Integral (/), and The linear dependence … WitrynaThe Hermans orientation factor is a scalar giving a simple assessment of molecular or crystal orientation in a polymer. It is usually determined from X-ray diffraction …
Witryna1 wrz 1987 · First published September 1987 Calculating Herman's Orientation Factor J.K.S. Warrier, V.G. Munshi, and P.K. Chidambareswaran View all authors and … Witryna25 lis 2013 · The relationship between the orientation of lead zirconate titanate (PZT) nanowires dispersed in nanocomposites and the resulting dielectric constants are quantified. The orientation of the PZT nanowires embedded in a polymer matrix is controlled by varying the draw ratio and subsequently quantified using Herman's …
http://sage.cnpereading.com/paragraph/article/?doi=10.1177/004051758705700912 Witrynaaverage orientation of this aggregate, given by (1), must be considered. Combining (1) and (3): 2 0 0 0 3 2 0 3 2 tan sin cos d (4) After performing the integration and converting the average cosine square to the Hermans orientation function through (2), the following is obtained: 2 1 arctan 1 2 1 1 3 3 3 3 3 3 3 2
WitrynaA new method based on the inversion of a relation derived by Krathy, and thereby allowing the determination of the orientation distribution function of amorphous polymers by Wide Angle X‐Ray Scattering (WAXS), is described. With a simple approximation, in many cases disturbing intramolecular scattering can be separated …
WitrynaThe calculated orientation factor ( f H ) in different layers is summarized in Figure 4. Regardless of the obvious difference with respect to the value of the orientation … the p-value is the proportion ofhttp://www.xenocs.cn/b7.php the p-value is the probability of whatWitrynaValues of Hermans' orientation parameter range from À0.5 for crystals ori- ented perpendicular to the fiber axis (drawing direction) to unity for crystals oriented parallel … signing a deed by power of attorneyWitrynaHermans orientation factor. It can be assumed that the orientation of the amorphous regions is a result of the deformation of a rubber-elastic network. Therefore, it can be … signing a deed in scotlandWitrynaAfter getting the circular histogram from azimuthal integration, we can calculate Herman Orientation Factor for each degree. The formula is. H o F = 3 cos 2 ϕ − 1 2, where cos 2 ϕ = ∑ i = 0 i = x I i cos 2 ϕ i sin ϕ i ∑ i = 0 i = x I i sin ϕ i. x is either equal to 180 or 90 degrees. -. We can get the same number of Herman Factors as ... the p-value is the same as the z statisticWitrynaMost of the molecular orientation studies were focuses on polymer samples with a well-defined molecular axis. Here, a four-polarization approach for Herman’s in-plane … the p-value methodWitrynaA couple of feedbacks: (1) If you use "Fit Intensity" minus "Background" as your corrected intensity, and then integrate from -90 to +270 degrees, then I get [Cos … the p value method