Search results
Results from the WOW.Com Content Network
Inverse spinel structures have a different cation distribution in that all of the A cations and half of the B cations occupy octahedral sites, while the other half of the B cations occupy tetrahedral sites. An example of an inverse spinel is Fe 3 O 4, if the Fe 2+ (A 2+) ions are d 6 high-spin and the Fe 3+ (B 3+) ions are d 5 high-spin.
International maritime signal flags are various flags used to communicate with ships. The principal system of flags and associated codes is the International Code of Signals . [ 1 ] Various navies have flag systems with additional flags and codes, and other flags are used in special uses, or have historical significance.
Flags may have individual significance as signals, or two or more flags may be manipulated so that their relative positions convey symbols. Flag signals allowed communication at a distance before the invention of radio and are still used especially in connection with ships.
Polyhedral representation of spinel MgAl 2 O 4. Spinel (/ s p ɪ ˈ n ɛ l, ˈ s p ɪ n əl / [7]) is the magnesium/aluminium member of the larger spinel group of minerals. It has the formula MgAl 2 O 4 in the cubic crystal system. Its name comes from the Latin word spinella, a diminutive form of spine, in reference to its pointed crystals. [5]
Flag Meaning As single flag With numeric complements A Alfa [ˈal.fa] "I have a diver down; keep well clear at slow speed." Azimuth or bearing B Bravo [ˈbrɑː.voʊ] "I am taking in or discharging or carrying dangerous goods." (Originally used by the Royal Navy specifically for military explosives.) C Charlie [ˈtʃɑː.li] "Affirmative." [a] [b]
The definition of high-entropy oxide is debated. In oxide literature, the term is commonly used to refer to any oxide with at least five principal cations. [42] However, it has been suggested that this is a misnomer, as most reports neglect to calculate configurational entropy. [42]
One logo features blue spiral-shaped triangle surrounded by a larger triangle, represents an pedophile who is attracted to boys. ... Click through the see images of the symbols: Show comments ...
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.