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11Particle — may refer to:In chemistry: * Colloidal particle, part of a one phase system of two or more componentsIn physics: * Subatomic particle, which may be either: **Elementary particle, a particle of which larger particles are composed, also called a… …
12Particle tracking velocimetry — (PTV) is one of velocimetry methods, i.e a technique to measure velocity of particles. The name suggests that the particles are tracked, and not only recorded as an image as it is suggested in another form, particle image velocimetry. There are… …
13Particle velocity — is the velocity v of a particle (real or imagined) in a medium as it transmits a wave. In many cases this is a longitudinal wave of pressure as with sound, but it can also be a transverse wave as with the vibration of a taut string. When applied… …
14Particle image velocimetry — (PIV) is an optical method used to measure velocities and related properties in fluids. The fluid is seeded with particles which, for the purposes of PIV, are generally assumed to faithfully follow the flow dynamics. It is the motion of these… …
15Particle displacement — or particle amplitude (represented in mathematics by the lower case Greek letter xi;) is a measurement of distance (in metres) of the movement of a particle in a medium as it transmits a wave. In most cases this is a longitudinal wave of pressure …
16Particle Mesh — (PM) is a computational method for determining the gravity forces in a system of particles. These particles could refer to atoms, stars, or fluid components and so the method is applicable to many fields, including molecular dynamics and… …
17Particle Man — is a song by the band They Might Be Giants. It can be found on their 1990 release, Flood . It is about four different beings, each referred to as a man : Particle Man, a microscopic being whose attributes are deemed not important by the song;… …
18Particle — Par ti*cle, n. [L. particula, dim. of pars, gen partis, a part: cf. F. particule. See {Part}, and cf. {Parcel}.] 1. A minute part or portion of matter; a morsel; a little bit; an atom; a jot; as, a particle of sand, of wood, of dust. [1913… …
19Particle size — *particle size (general) provides general definitions of the particle size notion. *particle size (grain size) provides specific details for particle size of soils, powders, gravel, etc. *particle size distribution …
20Particle astrophysics — can be defined as the border between particle physics and cosmology (for example, the physics of the early universe, baryogenesis, cosmological nucleosynthesis, dark matter, monopoles, the origin of structure), particle and stellar physics (for… …
