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Aerial refueling. Aerial refueling, also referred to as air refueling, in-flight refueling ( IFR ), air-to-air refueling ( AAR ), and tanking, is the process of transferring aviation fuel from one aircraft (the tanker) to another (the receiver) while both aircraft are in flight. [ a] The two main refueling systems are probe-and-drogue, which is ...
Epimedium wushanense contains a number of flavonoids. 37 compounds were characterized from the underground and aerial parts of the plant. Among them, 28 compounds were prenylflavonoids. The predominant flavonoid, epimedin C, ranged from 1.4 to 5.1% in aerial parts and 1.0 to 2.8% in underground parts. [9]
Antenna (radio) In radio engineering, an antenna ( American English) or aerial ( British English) is an electronic device that converts an alternating electric current into radio waves, or radio waves into an electric current. [ 1][ 2] It is the interface between radio waves propagating through space and electric currents moving in metal ...
A television antenna, also called a television aerial (in British English ), is an antenna specifically designed for use with a television receiver (TV) to receive terrestrial over-the-air (OTA) broadcast television signals from a television station. Terrestrial television is broadcast on frequencies from about 47 to 250 MHz in the very high ...
The list below is a summary the several parts of this article, and the bold-face links lead into the relevant subsections. Links within the linked sections themselves lead further on, to other wikipedia articles on that antenna type. Simple antennas There are three types of "simple" antennas: dipoles, monopoles, and loops.
Aerial stem modifications are modifications to the aerial stems, [1] vegetative buds and floral buds of plants growing in different conditions and which perform functions such as climbing, protection, support, synthesis of food, or vegetative propagation. [2] [3] Aerial stem structures that undergo modifications to perform these special ...
The Aerial Lift Bridge, earlier known as the Aerial Bridge or Aerial Ferry Bridge, is a landmark in the port city of Duluth, Minnesota. The span began life in 1905 as the United States' first transporter bridge: Only one other was ever constructed in the country, Sky Ride in Chicago. [ 2] The span was converted in 1929–1930 to a vertical-lift ...
Plant anatomy or phytotomy is the general term for the study of the internal structure of plants. Originally, it included plant morphology, the description of the physical form and external structure of plants, but since the mid-20th century, plant anatomy has been considered a separate field referring only to internal plant structure. [ 1][ 2 ...
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