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Given a potential energy function, the radial distribution function can be computed either via computer simulation methods like the Monte Carlo method, or via the Ornstein–Zernike equation, using approximative closure relations like the Percus–Yevick approximation or the hypernetted-chain theory. It can also be determined experimentally, by ...
The Lennard-Jones potential is a simple model that still manages to describe the essential features of interactions between simple atoms and molecules: Two interacting particles repel each other at very close distance, attract each other at moderate distance, and eventually stop interacting at infinite distance, as shown in the Figure.
Diagram showing the ionic concentration and potential difference as a function of distance from the charged surface of a particle suspended in a dispersion medium. Zeta potential is the electrical potential at the slipping plane. This plane is the interface which separates mobile fluid from fluid that remains attached to the surface.
In neurology, the Bereitschaftspotential or BP (German for "readiness potential"), also called the pre-motor potential or readiness potential (RP), is a measure of activity in the motor cortex and supplementary motor area of the brain leading up to voluntary muscle movement.
The local field potential is believed to represent the sum of synaptic inputs into the observed area, as opposed to the spikes, which represents the output from the area. The fast fluctuations are mostly caused by the short inward and outward currents of action potentials, while the LFP is composed of the more sustained currents in the tissue ...
Given the dispersion relation, one can calculate the frequency-dependent phase velocity and group velocity of each sinusoidal component of a wave in the medium, as a function of frequency. In addition to the geometry-dependent and material-dependent dispersion relations, the overarching Kramers–Kronig relations describe the frequency ...
The Hamaker constant provides the means to determine the interaction parameter C from the vdW-pair potential, w ( r ) = − C r 6 . {\displaystyle w(r)={\frac {-C}{r^{6}}}.} Hamaker's method and the associated Hamaker constant ignores the influence of an intervening medium between the two particles of interaction.
Multiple light scattering coupled with vertical scanning is one of many techniques monitor the dispersion state of a product, identifying and quantifying destabilisation phenomena. [2] [3] [4] It works on concentrated dispersions without dilution. When light is sent through the sample, it is backscattered by the particles / droplets.