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Radius of gyration (in polymer science)(, unit: nm or SI unit: m): For a macromolecule composed of mass elements, of masses , =1,2,…,, located at fixed distances from the centre of mass, the radius of gyration is the square-root of the mass average of over all mass elements, i.e.,
The radius of this circle, , can be determined by equating the magnitude of the Lorentz force to the centripetal force as = | |. Rearranging, the gyroradius can be expressed as = | |. Thus, the gyroradius is directly proportional to the particle mass and perpendicular velocity, while it is inversely proportional to the particle electric charge ...
Since the gyration tensor is a symmetric 3x3 matrix, ... The squared radius of gyration is the sum of the principal moments: = ...
Measurement of the scattering intensity at many angles allows calculation of the root mean square radius, also called the radius of gyration R g. By measuring the scattering intensity for many samples of various concentrations, the second virial coefficient, A 2 , can be calculated.
A quantity frequently used in polymer physics is the radius of gyration: = It is worth noting that the above average end-to-end distance, which in the case of this simple model is also the typical amplitude of the system's fluctuations, becomes negligible compared to the total unfolded length of the polymer N l {\displaystyle N\,l} at the ...
If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1304 ahead. Let's start with a few hints.
The F1 driver, meanwhile, was his cool self in a caramel-brown flannel layered under a boxy chocolate-brown workwear-inspired jacket. He went construction-core with his bottoms too: baggy, paint ...
It is an extensive (additive) property: for a point mass the moment of inertia is simply the mass times the square of the perpendicular distance to the axis of rotation. The moment of inertia of a rigid composite system is the sum of the moments of inertia of its component subsystems (all taken about the same axis).