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Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...
Track-while-scan ( TWS) is a mode of radar operation in which the radar allocates part of its power to tracking a target or targets (up to forty with modern radar) while part of its power is allocated to scanning. It is similar to but functions differently in comparison to its counterparts range-while-search (RWS), long range search (LRS), air ...
Transponder in a private aircraft squawking 2000. Secondary surveillance radar ( SSR) [1] is a radar system used in air traffic control (ATC), that unlike primary radar systems that measure the bearing and distance of targets using the detected reflections of radio signals, relies on targets equipped with a radar transponder, that reply to each ...
Differential 0-forms, 1-forms, and 2-forms are special cases of differential forms. For each k , there is a space of differential k -forms, which can be expressed in terms of the coordinates as ∑ i 1 , i 2 … i k = 1 n f i 1 i 2 … i k d x i 1 ∧ d x i 2 ∧ ⋯ ∧ d x i k {\displaystyle \sum _{i_{1},i_{2}\ldots i_{k}=1}^{n}f_{i_{1}i_{2 ...
RELAP5-3D. RELAP5-3D is the latest in the RELAP5 code series developed at Idaho National Laboratory (INL) for the analysis of transients and accidents in water-cooled nuclear power plants and related systems as well as the analysis of advanced reactor designs. Developer (s) Idaho National Laboratory. Initial release. July 6, 1997. Stable release.
Oracle Forms. Oracle Forms is a software product for creating screens that interact with an Oracle database. It has an IDE that includes an object navigator, property sheet, and code editor that uses PL/SQL. It was originally developed to run server-side in character-mode terminal sessions. It was ported to other platforms, including Windows ...
General form. Reynolds transport theorem can be expressed as follows: = + () in which n(x,t) is the outward-pointing unit normal vector, x is a point in the region and t is the variable of integration, dV and dA are volume and surface elements at x, and v b (x,t) is the velocity of the area element (not the flow velocity).
The cost of buying a home in the U.S. is at a record high, but a new study shows where you can find the most homes for sale at less than $200,000, which is roughly half the median.