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Harold Grad (Nova Iorque, 23 de janeiro de 1923 — Nova Iorque, 17 de novembro de 1986) foi um matemático estadunidense.
, هارولد غراد (بالإنجليزية: Harold Grad) (و. 1923 – 1986 م) هو رياضياتي، وفيزيائي، وأستاذ جامعي من الولايات المتحدة الأمريكية . ولد في نيويورك . توفي في نيويورك ، عن عمر يناهز 63 عاماً.
, Harold Grad est né le 23 janvier 1923 à New York et est décédé dans cette même ville le 17 novembre 1986. Il est un mathématicien appliqué, connu pour ses travaux en physique statistique appliquée aux plasmas et à la magnétohydrodynamique.
, Harold Grad (January 23, 1923 in New York City – November 17, 1986) was an American applied mathematician. His work specialized in the application of statistical mechanics to plasma physics and magnetohydrodynamics.
, Harold Grad (* 23. Januar 1923 in New York … Harold Grad (* 23. Januar 1923 in New York City; † 17. November 1986) war ein US-amerikanischer angewandter Mathematiker, der sich mit Magnetohydrodynamik (Plasmaphysik) und statistischer Mechanik beschäftigte. Grad studierte (nach einem Bachelor als Elektroingenieur an der Cooper Union 1943) an der New York University, wo er 1945 seinen Master-Abschluss machte und 1948 bei Richard Courant promovierte (Approximation in the Boltzmann Equation by Moments). Danach war er am Courant Institute of Mathematical Sciences of New York University (ab 1948 als Associate Professor, ab 1957 bis zu seinem Tod als Professor an der New York University), wo er die Forschung in Magnetohydrodynamik, der mathematischen Formulierung der Plasmaphysik, leitete, mit Anwendungen speziell in der Forschung zur Kernfusion. Er leitete die Magnetohydrodynamik-Abteilung des Courant Institute von 1956 bis 1980. In der statistischen Mechanik entwickelte er schon in seiner Dissertation neue Methoden zur Lösung der Boltzmann-Gleichung. 1964 bis 1967 und 1974 bis 1977 war er Mitglied des Advisory Committee for Fusion Energy am Oak Ridge National Laboratory. 1986 erhielt er den James-Clerk-Maxwell-Preis für Plasmaphysik der American Physical Society. Seit 1970 war er Mitglied der National Academy of Sciences. 1970 war er Invited Speaker auf dem Internationalen Mathematikerkongress in Nizza (Mathematical problems arising in plasma physics) und 1962 in Stockholm (Mathematical problems of magneto-fluid dynamics and plasma physics).agneto-fluid dynamics and plasma physics).
, Harold Grad (New York, 23 gennaio 1923 – 1 … Harold Grad (New York, 23 gennaio 1923 – 17 novembre 1986) è stato un matematico statunitense. A lui si deve il limite di Boltzmann-Grad, situazione nella quale si trova un gas rarefatto di particelle con sezione d'urto a2 e raggio a quando il numero di particelle n per unità di volume tende a ∞ e a tende a 0, cosicché il cammino libero medio del gas rimanga costante.ino libero medio del gas rimanga costante.
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Harold Grad est né le 23 janvier 1923 à New York et est décédé dans cette même ville le 17 novembre 1986. Il est un mathématicien appliqué, connu pour ses travaux en physique statistique appliquée aux plasmas et à la magnétohydrodynamique.
, هارولد غراد (بالإنجليزية: Harold Grad) (و. 1923 – 1986 م) هو رياضياتي، وفيزيائي، وأستاذ جامعي من الولايات المتحدة الأمريكية . ولد في نيويورك . توفي في نيويورك ، عن عمر يناهز 63 عاماً.
, Harold Grad (New York, 23 gennaio 1923 – 1 … Harold Grad (New York, 23 gennaio 1923 – 17 novembre 1986) è stato un matematico statunitense. A lui si deve il limite di Boltzmann-Grad, situazione nella quale si trova un gas rarefatto di particelle con sezione d'urto a2 e raggio a quando il numero di particelle n per unità di volume tende a ∞ e a tende a 0, cosicché il cammino libero medio del gas rimanga costante.ino libero medio del gas rimanga costante.
, Harold Grad (January 23, 1923 in New York City – November 17, 1986) was an American applied mathematician. His work specialized in the application of statistical mechanics to plasma physics and magnetohydrodynamics.
, Harold Grad (Nova Iorque, 23 de janeiro de 1923 — Nova Iorque, 17 de novembro de 1986) foi um matemático estadunidense.
, Harold Grad (* 23. Januar 1923 in New York … Harold Grad (* 23. Januar 1923 in New York City; † 17. November 1986) war ein US-amerikanischer angewandter Mathematiker, der sich mit Magnetohydrodynamik (Plasmaphysik) und statistischer Mechanik beschäftigte. 1986 erhielt er den James-Clerk-Maxwell-Preis für Plasmaphysik der American Physical Society. Seit 1970 war er Mitglied der National Academy of Sciences. 1970 war er Invited Speaker auf dem Internationalen Mathematikerkongress in Nizza (Mathematical problems arising in plasma physics) und 1962 in Stockholm (Mathematical problems of magneto-fluid dynamics and plasma physics).agneto-fluid dynamics and plasma physics).
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Harold Grad
, هارولد غراد
|
