pulsed sign
31Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …
32Microcode — is a layer of hardware level instructions and/or data structures involved in the implementation of higher level machine code instructions in many computers and other processors; it resides in special high speed memory and translates machine… …
33Faraday cage — A Faraday cage or Faraday shield is an enclosure formed by conducting material, or by a mesh of such material. Such an enclosure blocks out external static electrical fields. Faraday cages are named after physicist Michael Faraday, who built one… …
34Organic light-emitting diode — Demonstration of a flexible OLED device A green emitting OLED device An …
35Functional magnetic resonance imaging — Functional MRI or functional Magnetic Resonance Imaging (fMRI) is a type of specialized MRI scan. It measures the haemodynamic response related to neural activity in the brain or spinal cord of humans or other animals. It is one of the most… …
36Space charge — is a concept in which excess electric charge is treated as a continuum of charge distributed over a region of space (either a volume or an area) rather than distinct point like charges. This model typically applies when charge carriers have been… …
37Iowa class battleship — The Iowa class battleships were a class of six fast battleships ordered by the United States Navy in 1939 and 1940 to escort the Fast Carrier Task Forces that would operate in the Pacific Theater of World War II. Four were completed in the early… …
38Electrophoresis — is the most well known electrokinetic phenomenon. It was discovered by Reuss in 1809. [Reuss, F.F. Mem.Soc.Imperiale Naturalistes de Moscow , 2, 327 1809] He observed that clay particles dispersed in water migrate under influence of an applied… …
39PAM — or PAM may refer to: Contents 1 Companies 2 Organisations 3 Military …
40Xenon flash lamp — A xenon flash lamp is an electric glow discharge lamp designed to produce extremely intense, incoherent, full spectrum white light for very short durations. Construction The lamp comprises a sealed tube, often made of fused quartz, which is… …
