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Ernst Hjalmar Waloddi Weibull (18 June 1887 – 12 October 1979 in Annecy, France) was a Swedish engineer, scientist, and mathematician. Weibull came from a family that had strong ties to Scania. He was a cousin of the historian brothers Lauritz, Carl Gustaf and Curt Weibull, of whom especially the first is noteworthy for introducing a stricter criticism in the interpretation of medieval Scandinavian sources. He joined the Swedish Coast Guard in 1904 as a midshipman. Weibull moved up the ranks with promotion to sublieutenant in 1907, Captain in 1916 and Major in 1940. While in the coast guard he took courses at the Royal Institute of Technology. In 1924 he graduated and became a full professor.〔 Weibull obtained his doctorate from the University of Uppsala in 1932.〔 He was employed in Swedish and German industry as a consulting engineer. In 1914, while on expeditions to the Mediterranean, the Caribbean and the Pacific Ocean on the research ship ''Albatross'', Weibull wrote his first paper on the propagation of explosive waves. He developed the technique of using explosive charges to determine the type of ocean bottom sediments and their thickness. The same technique is still used today in offshore oil exploration. In 1939 he published his paper on Weibull distribution in probability theory and statistics.〔 In 1941 he received a personal research professorship in Technical Physics at the Royal Institute of Technology in Stockholm from the arms producer Bofors.〔 Weibull published many papers on strength of materials, fatigue, rupture in solids, bearings, and of course, the Weibull distribution, as well as one book on fatigue analysis in 1961.〔 Twenty seven of these papers were reports to the US Air Force at Wright Field on Weibull analysis. In 1951 he presented his most famous paper to the American Society of Mechanical Engineers (ASME) on Weibull distribution, using seven case studies. The American Society of Mechanical Engineers awarded Weibull their gold medal in 1972. The Great Gold Medal from the Royal Swedish Academy of Engineering Sciences was personally presented to him by King Carl XVI Gustaf of Sweden in 1978.〔 Weibull died on October 12, 1979 in Annecy, France.〔 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Waloddi Weibull」の詳細全文を読む スポンサード リンク
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