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The Department of the Air Force first began issuing awards and decorations in 1947. At that time, airmen were eligible to receive most U.S. Army decorations. In 1962, following the Cuban Missile Crisis, the Department of the Air Force began a concentrated effort to create its own distinctive awards, separate from the Army.
History of retirement. Retirement, or the practice of leaving one's job or ceasing to work after reaching a certain age, has been around since the 18th century. Retirement as a government policy began to be adopted by countries during the late 19th century and the 20th century. [1]
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Delta Burke. Delta Burke (born July 30, 1956) [1] is an American actress, producer, and author. From 1986 to 1991, she starred as Suzanne Sugarbaker in the CBS sitcom Designing Women, for which she was nominated for two Emmy Awards for Outstanding Lead Actress in a Comedy Series . Burke's other television credits include Filthy Rich (1982–83 ...
Three-phase transformer with four-wire output for 208Y/120 volt service: one wire for neutral, others for A, B and C phases. Three-phase electric power (abbreviated 3ϕ [1]) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. [2] It is a type of polyphase system employing three wires (or ...
A mathematical sunflower can be pictured as a flower. The kernel of the sunflower is the brown part in the middle, and each set of the sunflower is the union of a petal and the kernel. In the mathematical fields of set theory and extremal combinatorics, a sunflower or -system [1] is a collection of sets in which all possible distinct pairs of ...
Single delta potential. The time-independent Schrödinger equation for the wave function ψ(x) of a particle in one dimension in a potential V(x) is. where ħ is the reduced Planck constant, and E is the energy of the particle. The delta potential is the potential. where δ(x) is the Dirac delta function. It is called a delta potential well if ...
Delta ratio. Delta ratio, or " delta-delta ", is a formula that can be used to assess elevated anion gap metabolic acidosis and to evaluate whether a mixed acid–base disorder ( metabolic acidosis) is present. The anion gap (AG) without potassium is calculated first and if a metabolic acidosis is present, results in either a high anion gap ...