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Ferrofluid print that page


A ferrofluid (portmanteau of ferromagnetic , and fluid ) is a liquid which becomes strongly magnetized in the presence of a magnetic field . Ferrofluids are colloidal liquids made of nanoscale ferromagnetic , or ferrimagnetic , particles suspended in a carrier fluid (usually an organic

Ferrofluid mirror print that page


Ferrofluid mirror From Wikipedia, the free encyclopedia Jump to: navigation , search Ferrofluid deformable mirror Ferrofluid mirrors are commonly used in adaptive optics as a deformable mirror. They are made of a ferrofluid that uses electromagnets to change its shape

Tweeter print that page


low-frequency drivers are named ( woofers ). Contents 1 Operation 2 Dome materials 3 Ferrofluid 4 Professional sound applications 5 Types of tweeters 5.1 Cone tweeter 5.2 Dome tweeter 5.3 Piezo tweeter 5.4 Ribbon tweeter 5.5 Planar-magnetic tweeter 5.6 Electrostatic

Liquid mirror print that page

Another difficulty is that a telescope with a liquid metal mirror can only be used in zenith telescopes that look straight up at the zenith , so it is not suitable for investigations where the telescope must remain pointing at the same location of space (a possible exception to this rule may | 2011/5/26 20:22:13

Magnetic hyperthermia print that page

During in vitro hyperthermia measurements they are generally dispersed in a liquid and form a ferrofluid . They move and rotate randomly in the fluid, a phenomenon called Brownian motion . When a magnetic field is applied to them, magnetic nanoparticles rotate and progressively align with | 2011/5/10 18:31:40

Magnetorheological fluid print that page


which gives rise to its many possible control-based applications. MR fluid is different from a ferrofluid which has smaller particles. MR fluid particles are primarily on the micrometre -scale and are too dense for Brownian Motion to keep them suspended (in the lower density carrier fluid

Voice coil print that page


Some coils are made with surface-sealed bobbin and collar materials so they may be immersed in a ferrofluid which assists in cooling the coil, by conducting heat away from the coil and into the magnet structure. Excessive input power at low frequencies can cause the coil to move beyond its

Deformable mirror print that page


The shape of the DM can be controlled with a speed that is appropriate for compensation of dynamic aberrations present in the optical system. In practice the DM shape should be changed much faster than the process to be corrected, as the correction process, even for a static aberration, may

Convection print that page


Convection is one of the major modes of heat transfer and mass transfer . Convective heat and mass transfer take place through both diffusion – the random Brownian motion of individual particles in the fluid – and by advection , in which matter or heat is transported by the larger-scale

Ferro Liquid Display print that page


typical LCD that twist/untwist due to electric rather than magnetic interactions. [ 1 ] Also see Ferrofluid for how some liquids behave in presence of a magnetic field . Practically the switching time is just the same as the time it takes for the electric signal to switch (the magnetic