Displayed background gamma radiation level is 9.8 Î¼R/h (0.82 mSv/a) This is very close to the world average background radiation of 0.87 mSv/a from cosmic and terrestrial sources. Displays showing ambient radiation fields of 0.120-0.130 Î¼Sv/h (1.05-1.14 mSv/a) in a nuclear power plant.This reading includes natural background from cosmic and terrestrial sources, but excludes any contribution from contamination in the air, food, and water.isplays showing ambient radiation fields of 0.120-0.130 Î¼Sv/h (1.05-1.14 mSv/a) in a nuclear power plant. This reading includes natural background from cosmic and terrestrial sources, but excludes any contribution from contamination in the air, food, and water.
In some countries, the more senior rank of Commodore is also included. In others Lieutenant-Commanders, as equivalents to army and marine Majors, are considered senior officers. Commonwealth air force senior officer ranks include Group Captain, Wing Commander, and Squadron Leader, where such ranks are still used.
In the Army this area is called a military occupational specialty (MOS). For rank and precedence within the Army, specialist ranks immediately below corporal. Among the services, however, rank and precedence are determined by pay grade.ome enlisted pay grades have two ranks. The Army has the ranks of corporal and specialist at the pay grade of E-4. A corporal is expected to fill a leadership role and has a higher rank than a specialist even though both receive the same amount of pay.