the flow rate is defined as the ratio of the driving force over the filter resistance. the two conventional types of depth filter designs: the rapid and slow filters operate with velocities of 5–15 m/h and 0.1-0.2 m/h respectively; whereas pressurised sand filters have design flow rates of 238 l/min 14 . during operation the filter rate .
hives, or urticaria, is a form of skin rash with red, raised, itchy bumps. they may also burn or sting. welts raised areas surrounded by a red base from hives can appear anywhere on the surface of the skin. whether the trigger is allergic or not, a complex release of inflammatory mediators, including histamine from cutaneous mast cells, results in fluid leakage from superficial blood vessels.
a voltage regulator is a system designed to automatically maintain a constant voltage level. a voltage regulator may use a simple feed-forward design or may include negative feedback. it may use an electromechanical mechanism, or electronic components. depending on the design, it may be used to regulate one or more ac or dc voltages.
rotary vacuum filter drum consists of a drum rotating in a tub of liquid to be filtered.. the technique is well suited to slurries, and liquids with a high solid content, which could clog other forms of filter.the drum is pre-coated with a filter aid, typically of diatomaceous earth de or perlite.after pre-coat has been applied, the liquid to be filtered is sent to the tub below the drum.
mythbusters is a science entertainment tv program created and produced by australia's beyond television productions for the discovery channel.. there is no consistent system for organizing mythbusters episodes into seasons.the show does not follow a typical calendar of on and off air periods. the official mythbusters website lists episodes by calendar year.