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Urdu Daira Maarif Islamiya or Urdu Encyclopaedia of Islam (Urdu: اردو دائرہ معارف اسلامیہ) is the largest Islamic encyclopedia published in Urdu by University of the Punjab. Originally it is a translated, expanded and revised version of Encyclopedia of Islam. Its composition began in the 1950s at University of the Punjab.
An infrared detector is a detector that reacts to infrared (IR) radiation. The two main types of detectors are thermal and photonic (photodetectors). The thermal effects of the incident IR radiation can be followed through many temperature dependent phenomena. [2] Bolometers and microbolometers are based on changes in resistance.
The sensor converts the resulting change in the incoming infrared radiation into a change in the output voltage, and this triggers the detection. Objects of similar temperature but different surface characteristics may also have a different infrared emission pattern, and thus moving them with respect to the background may trigger the detector ...
An IRST sensor on a Sukhoi Su-35. An Infrared Search and Track (IRST) system (sometimes known as infrared sighting and tracking) is a method for detecting and tracking objects which give off infrared radiation, such as the infrared signatures of jet aircraft and helicopters.
The most common method of infrared countermeasure is deploying flares, as the heat produced by the flares creates hundreds of targets for the missile. Conventional man-portable air defense systems -launched missiles include an infrared sensor that is sensitive to heat, for example the heat emitted from an aircraft engine. The missile is ...
Infrared signature, as used by defense scientists and the military, is the appearance of objects to infrared sensors. [1] An infrared signature depends on many factors, including the shape and size of the object, [2] temperature, [3] and emissivity, reflection of external sources (earthshine, sunshine, skyshine) from the object's surface, [4] the background against which it is viewed [5] and ...
ʿAbd (عبد) (for male) ʾAmah (أمة) (for female) Servant or worshipper. Muslims consider themselves servants and worshippers of God as per Islam.Common Muslim names such as Abdullah (Servant of God), Abdul-Malik (Servant of the King), Abdur-Rahmān (Slave of the Most Beneficent), Abdus-Salām (Slave of [the originator of] Peace), Abdur-Rahîm (Slave of the Most Merciful), all refer to ...
Islamic Names, List of Islamic Names for Servants of Allah Names This page was last edited on 11 January 2025, at 14:54 (UTC). Text is available under the Creative ...