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The resulting product is an -SO 2 F-containing thermoplastic that is extruded into films. Hot aqueous NaOH converts these sulfonyl fluoride (-SO 2 F) groups into sulfonate groups (-SO 3 − Na +). This form of Nafion, referred to as the neutral or salt form, is finally converted to the acid form containing the sulfonic acid (-SO 3 H) groups.
The Saturn AL-51, [N 1] internal development designation izdeliye 30, [N 2] is an afterburning low-bypass turbofan engine being developed by NPO Saturn to succeed the Saturn AL-41F-1 for improved variants of the Sukhoi Su-57, as well as new potential tactical fighters such as the Sukhoi Su-75 Checkmate.
Zigana F [1] 117 205 880 15 Zigana FC [9] 117 204 870 15 Zigana M16 [2] 126 213 810 15 Zigana 63 [10] 117 204 874 15 Zigana Sport [11] 130 214 920 15 Zigana PX-9 [12] 102,5 180 720 18+1 Mec Gar Magazines made in Italy Zigana P9L [13] 114,5 191,5 770 15 Zigana P9LC [14] 114,5 191,5 760 15
The Isuzu 117 Coupé is a compact Gran Turismo type 2-door fastback coupé which was produced by the Japanese automobile manufacturer Isuzu between 1968 and 1981. 117 was the codename for a common development program of Isuzu mid-size cars, involving a coupé, sedan, and station wagon.
The AN/FPS-117 is an L-band active electronically scanned array (AESA) 3-dimensional air search radar first produced by GE Aerospace in 1980 and now part of Lockheed Martin. [1] [2] The system offers instrumented detection at ranges on the order of 200 to 250 nautical miles (370 to 460 km; 230 to 290 mi) and has a wide variety of interference and clutter rejection systems.
The first and third conversion oscillators were crystal-controlled. The second was variable from 6 to 6.5 MHz. Introduced in 1962 at a price of $379.95, it had a product detector for SSB, a notch filter, and selectable bandwidth of 0.5, 2.5, and 5 kHz. In addition to the ham bands, general coverage was possible for most frequencies in 500 kHz ...
118 is the smallest number that can be expressed as four sums with the same product in this way. [2] Because of its expression as 118 = 3 5 − 5 3, it is a Leyland number of the second kind. [3] 118!! - 1 is a prime number, where !! denotes the double factorial (the product of even integers up to 118). [4]
The design of the AL-31 turbofan began in the 1970s under the designation izdeliye 99 [N 1] by the Lyulka design bureau, also known as Lyulka-Saturn. With an emphasis on greater fuel efficiency over turbojets for longer range, the 12.5 tonnes-force (122.6 kN; 27,560 lbf) class turbofan engine was intended to power the heavy PFI (Russian: ПФИ, short for: перспективного ...