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Redfield's ability is evident in letters exchanged [2] among Redfield, Percy MacMahon, and Sir Thomas Muir, following the publication of Redfield's paper [1] in 1927. Apparently Redfield sent a copy of his paper to MacMahon. In reply (letter of November 19, 1927), MacMahon expresses the view that Redfield has made a valuable contribution to the ...
The Pólya enumeration theorem, also known as the Redfield–Pólya theorem and Pólya counting, is a theorem in combinatorics that both follows from and ultimately generalizes Burnside's lemma on the number of orbits of a group action on a set. The theorem was first published by J. Howard Redfield in 1927.
The equation is named after Alfred G. Redfield, who first applied it, doing so for nuclear magnetic resonance spectroscopy. [1] It is also known as the Redfield relaxation theory. [2] There is a close connection to the Lindblad master equation. If a so-called secular approximation is performed, where only certain resonant interactions with the ...
The National Defence Academy and Naval Academy Examination is an entrance examination conducted by the Union Public Service Commission (UPSC) twice a year for admissions into the National Defence Academy (NDA) and Indian Naval Academy (INA). [1] The NDA Exam serves as a gateway for candidates seeking a career in the Indian Army, Navy, and Air ...
William C. Redfield [a] (March 26, 1789 – February 12, 1857) was an American meteorologist. He was the first president of the American Association for the Advancement of Science (1848). [ 6 ] [ 7 ] [ 5 ] [ 8 ]
The enhanced entity–relationship (EER) model (or extended entity–relationship model) in computer science is a high-level or conceptual data model incorporating extensions to the original entity–relationship (ER) model, used in the design of databases.
[1] [2] The appointment to this service is done through Combined Engineering Services Exam held every year by Union Public Service Commission (UPSC) of India. [3] It has 263 all India posts, the cadre comprises 3 post at senior administrative grade while 28 are at junior grade. While 120 posts at Senior Time Scale and 112 posts at Junior Time ...
Redfield’s analysis of the empirical data led to him to discover that across and within the three oceans and Barents Sea, seawater had an N:P atomic ratio near 20:1 (later corrected to 16:1), and was very similar to the average N:P of phytoplankton. To explain this phenomenon, Redfield initially proposed two mutually non-exclusive mechanisms: