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[13] [14] The main gallium nitride (GaN)-based AESA array measures 9 ft × 13 ft (2.7 m × 4.0 m), is a bolt-on replacement for the current antenna, and is oriented toward the primary threat; two new rear panel arrays are a quarter the size of the main array and let the system look behind and to the sides, providing 360-degree coverage.
Information about GEM can be found at the GEM web page. [1] There are two versions of GEM, one is a flux-tube version [2] and the other one is a global general geometry version. [3] Both versions of GEM use a field-aligned coordinate system. Ions are treated kinetically, but averaged over their gyro-obits and electrons are treated as drift-kinetic.
The Thorpe–Ingold effect, gem-dimethyl effect, or angle compression is an effect observed in chemistry where increasing steric hindrance favours ring closure and intramolecular reactions. The effect was first reported by Beesley, Thorpe , and Ingold in 1915 as part of a study of cyclization reactions . [ 1 ]
Gravitoelectromagnetism, abbreviated GEM, refers to a set of formal analogies between the equations for electromagnetism and relativistic gravitation; specifically: between Maxwell's field equations and an approximation, valid under certain conditions, to the Einstein field equations for general relativity.
The Graphite-Epoxy Motor (GEM) is a family of solid rocket boosters developed in the late 1980s and used since 1990. GEM motors are manufactured with carbon-fibre-reinforced polymer casings and a fuel consisting of HTPB -bound ammonium perchlorate composite propellant .
Chicken wing prices have jumped 7.2% from last year, per Wells Fargo, as grocers try to balance demand. Michael Swanson of Wells Fargo said consumers would "empty the shelf" if grocers reduced ...
With January rapidly approaching, nearly half of our top 50 free agents have agreed to new contracts, ranging in magnitude from Juan Soto’s $765 million mega-deal with the Mets to Danny Jansen ...
A rough specimen of bloodstone. Heliotropes (from Ancient Greek ἥλιος (hḗlios) 'sun' and τρέπειν (trépein) 'to turn') (also called ematille, Indian bloodstones, or simply bloodstones) are aggregate minerals, and cryptocrystalline mixture of quartz that occurs mostly as jasper or sometimes as chalcedony (translucent).