graf, r f (1999) modern dictionary of electronics (7th ed )

... size of the object. corner effect A rounding off of the frequency re- sponse of a filter at the corner(s) [i.e., at the limit(s) of the passband]. corner frequency See CORNER, 4. corner reflection ... VOLTAGE FEED. 2. In an antenna, feeding it at a current maximum. current attenuation • current relay 159 Current Current feed current feedback 1. A feedback signal consisting of curren...

Ngày tải lên: 10/12/2013, 06:15

... of airborne (or aircraft) early warning. aF Abbreviation of ATTOFARAD. AF Abbreviation of AUDIO FREQUENCY. AFC 1. Abbreviation of AUTOMATIC FREQUENCY CONTROL. 2. Abbreviation of AUDIO-FRE- QUENCY ... the radiation resistance of the antenna (R R ) appears in series with loss resistance (R L ). The ef- ficiency Eff of the antenna can be determined by the following formula...

Ngày tải lên: 19/01/2014, 17:20

... form of ACOUSTIC CAPACITANCE or ACOUSTIC INDUCTANCE. acoustic reflectivity The ratio F r /F i , where F r is the rate of flow of sound energy reflected from a surface and F i is the rate of flow ... overcurrent relay A relay that works on a specific value of alternating overcur- rent that is rectified for a desired polarity. ac drain current Symbol, I D(ac) . The ac compo...

Ngày tải lên: 19/01/2014, 17:20

... form of ACOUSTIC CAPACITANCE or ACOUSTIC INDUCTANCE. acoustic reflectivity The ratio F r /F i , where F r is the rate of flow of sound energy reflected from a surface and F i is the rate of flow ... overcurrent relay A relay that works on a specific value of alternating overcur- rent that is rectified for a desired polarity. ac drain current Symbol, I D(ac) . The ac compo...

Ngày tải lên: 25/01/2014, 12:20

... of airborne (or aircraft) early warning. aF Abbreviation of ATTOFARAD. AF Abbreviation of AUDIO FREQUENCY. AFC 1. Abbreviation of AUTOMATIC FREQUENCY CONTROL. 2. Abbreviation of AUDIO-FRE- QUENCY ... the radiation resistance of the antenna (R R ) appears in series with loss resistance (R L ). The ef- ficiency Eff of the antenna can be determined by the following formula...

Ngày tải lên: 25/01/2014, 13:20

... form of ACOUSTIC CAPACITANCE or ACOUSTIC INDUCTANCE. acoustic reflectivity The ratio F r /F i , where F r is the rate of flow of sound energy reflected from a surface and F i is the rate of flow ... overcurrent relay A relay that works on a specific value of alternating overcur- rent that is rectified for a desired polarity. ac drain current Symbol, I D(ac) . The ac compo...

Ngày tải lên: 25/01/2014, 13:20

... form of ACOUSTIC CAPACITANCE or ACOUSTIC INDUCTANCE. acoustic reflectivity The ratio F r /F i , where F r is the rate of flow of sound energy reflected from a surface and F i is the rate of flow ... overcurrent relay A relay that works on a specific value of alternating overcur- rent that is rectified for a desired polarity. ac drain current Symbol, I D(ac) . The ac compo...

Ngày tải lên: 16/03/2014, 04:20

... flatworm called Ribeiroia, which was present in the ponds where the deformed frogs were found. Pieter then did an experiment. He collected frog eggs from regions where there were no records of deformed frogs ... largely absent from areas close to or downwind of air pollution sources. (Distributions of three other species of Rana were similar to that of R. aurora .) Upwind Down-...

Ngày tải lên: 08/04/2014, 13:03

... George III (George William Frederick) 117 George IV (George Augustus Frederick) 117 George V (George Frederick Ernest Albert) 118 George VI (Albert Frederick Arthur George) ... parliament. Palmerston having swept back into office and Cobden having returned to parliament in 1858, the former offered the latter the Presidency of the Board of Trade but Cobden refused ... m...

Ngày tải lên: 23/03/2014, 06:20

Ngày tải lên: 03/04/2014, 12:50