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The 1984 United States presidential election was the 50th quadrennial presidential election, held on Tuesday, November 6, 1984.Incumbent Republican President Ronald Reagan and his running mate, incumbent Vice President George H. W. Bush, were re-elected to a second term in a landslide.
She was the only daughter and the youngest of six children of Annunciata M. "Nancy" D'Alesandro (née Lombardi) [4] and Thomas D'Alesandro Jr. [5] Her mother was born in Fornelli, Isernia, Molise, in Southern Italy, and immigrated to the U.S. in 1912; [6] her father traced his Italian ancestry to Genoa, Venice and Abruzzo. [5]
16 N → 16 O + β − (Decay t 1/2 = 7.13 s) This high-energy β − further interacts rapidly with other nuclei, emitting high-energy γ via Bremsstrahlung While not a favorable reaction, the 16 O (n,p) 16 N reaction is a major source of X-rays emitted from the cooling water of a pressurized water reactor and contributes enormously to the ...
Non-radiative life time is the average time before an electron in the conduction band of a semiconductor recombines with a hole. It is an important parameter in optoelectronics where radiative recombination is required to produce a photon; if the non-radiative life time is shorter than the radiative, a carrier is more likely to recombine non ...
e. The triboelectric effect (also known as triboelectricity, triboelectric charging, triboelectrification, or tribocharging) describes electric charge transfer between two objects when they contact or slide against each other. It can occur with different materials, such as the sole of a shoe on a carpet, or between two pieces of the same material.
The primary goal of the technique is to determine the root cause of a defect or problem by repeating the question "why?" five times, each time directing the current "why" to the answer of the previous "why". The method asserts that the answer to the fifth "why" asked in this manner should reveal the root cause of the problem. [2]
This 30 m (98 ft) diameter crater formed between July 2010 and May 2012 (19 November 2013; 3.7°N 53.4°E ). [1] In planetary geology, a ray system comprises radial streaks of fine ejecta thrown out during the formation of an impact crater, looking somewhat like many thin spokes coming from the hub of a wheel. The rays may extend for lengths up ...
Moseley's law. Moseley's law is an empirical law concerning the characteristic X-rays emitted by atoms. The law had been discovered and published by the English physicist Henry Moseley in 1913–1914. [1] [2] Until Moseley's work, "atomic number" was merely an element's place in the periodic table and was not known to be associated with any ...