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4.1 Single-flashing: Fl A flash is repeated regularly at a rate below 50 per minute. Fl G 5s 4.2 Long-flashing: L.Fl A light flash, duration of more than 2 seconds (long flash) is repeated regularly. L.Fl W 10s 4.3 Group-flashing: Fl(x) A group of a specific number of flashes are repeated regularly. Fl(3) R 15s 4.4 Composite group-flashing: Fl(x+y)
Fluorescence intermittency, or blinking, is the phenomenon of random switching between ON (bright) and OFF (dark) states of the emitter under its continuous excitation.It is a common property of the nanoscale emitters (molecular fluorophores, colloidal quantum dots) related to the competition between the radiative and non-radiative relaxation pathways.
Mid- to high-end Nikon DSLRs with a maximum shutter speed of 1 ⁄ 8000 s (roughly D7000 or D800 and above) have an unusual menu-selectable feature which increases the maximum X-Sync speed to 1 ⁄ 320 s = 3.1 ms with some electronic flashes. At 1 ⁄ 320 s only 3.1 ms − 2.4 ms = 0.7 ms are available to trigger and fire the flash while ...
Within the branch of materials science known as material failure theory, the Goodman relation (also called a Goodman diagram, a Goodman-Haigh diagram, a Haigh diagram or a Haigh-Soderberg diagram) is an equation used to quantify the interaction of mean and alternating stresses on the fatigue life of a material. [1]
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In thermodynamics, the thermal efficiency is a dimensionless performance measure of a device that uses thermal energy, such as an internal combustion engine, steam turbine, steam engine, boiler, furnace, refrigerator, ACs etc.
Glass Furnace by Siemens hist. 1878 Siemens Regenerator Furnace hist. 1885 in 4 Views. A glass melting furnace is designed to melt raw materials into glass. [1] Depending on the intended use, there are various designs of glass melting furnaces available. [2] [3] [4] They use different power sources. These sources are mainly fossil fueled or by ...
Each room has an outlet from the duct system, often mounted in the floor or low on the wall – some rooms will also have an opening into the cold air return duct. Depending on the age of the system, forced-air gas furnaces use either a pilot light or a solid-state ignition system (spark or hot surface ignition) to light the natural gas burner. [3]
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