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  2. Clarke Studies - Wikipedia

    en.wikipedia.org/wiki/Clarke_Studies

    The second volume, published in 1912 as Clarke's Technical Studies for Cornet, includes 190 exercises divided into ten studies with notes from the author suggesting how to practice them. Each of the ten studies concludes with an exercise serving as an étude , except for the ninth study, which lacks an exercise labeled as such, and the tenth ...

  3. Doublet earthquake - Wikipedia

    en.wikipedia.org/wiki/Doublet_earthquake

    A theoretical study found about one earthquake in 15 (~7%) to be a doublet (using a narrow criterion of "doublet"), [15] but also found that in the Solomon Islands six of 57 M ≥ 6.0 earthquakes were doublets, and 4 of 15 M ≥ 7.0 earthquakes, showing that approximately 10% and 25% of those quakes were doublets.

  4. Multiplicity (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Multiplicity_(chemistry)

    [1] [2] However the multiplicity equals the number of spin orientations only if S ≤ L. When S > L there are only 2L+1 orientations of total angular momentum possible, ranging from S+L to S-L. [2] [3] The ground state of the nitrogen atom is a 4 S state, for which 2S + 1 = 4 in a quartet state, S = 3/2 due to three unpaired electrons. For an S ...

  5. Clarke number - Wikipedia

    en.wikipedia.org/wiki/Clarke_number

    Incidentally, in major reference books, there was no data table titled "clarke numbers" which showed Clarke's original tables. Despite being removed from major reference books, data from Kimura(1938) and phrases such as "the Clarke number of iron is 4.70", unsourced, continue to circulate, even in the 2010s (example: [x 7]: 799 ).

  6. Arban's Complete Conservatory Method for Trumpet - Wikipedia

    en.wikipedia.org/wiki/Arban's_Complete...

    Arban's Complete Conservatory Method for Trumpet is a method book for students of trumpet, cornet, and other brass instruments.The original edition, Grande méthode complète de cornet à pistons et de saxhorn), was written and composed by Jean-Baptiste Arban (1825-1889) and published in Paris by Léon Escudier in 1864. [1]

  7. Tuplet - Wikipedia

    en.wikipedia.org/wiki/Tuplet

    The most common tuplet [9] is the triplet (German Triole, French triolet, Italian terzina or tripletta, Spanish tresillo).Whereas normally two quarter notes (crotchets) are the same duration as a half note (minim), three triplet quarter notes have that same duration, so the duration of a triplet quarter note is 2 ⁄ 3 the duration of a standard quarter note.

  8. Doublet–triplet splitting problem - Wikipedia

    en.wikipedia.org/wiki/Doublet–triplet_splitting...

    In particle physics, the doublet–triplet (splitting) problem is a problem of some Grand Unified Theories, such as SU(5), SO(10), and . Grand unified theories predict Higgs bosons (doublets of S U ( 2 ) {\displaystyle SU(2)} ) arise from representations of the unified group that contain other states, in particular, states that are triplets of ...

  9. Doublet state - Wikipedia

    en.wikipedia.org/wiki/Doublet_state

    Examples of atoms in singlet, doublet, and triplet states.. In quantum mechanics, a doublet is a composite quantum state of a system with an effective spin of 1/2, such that there are two allowed values of the spin component, −1/2 and +1/2.