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The Dimensionally Extended 9-Intersection Model (DE-9IM) is a topological model and a standard used to describe the spatial relations of two regions (two geometries in two-dimensions, R 2), in geometry, point-set topology, geospatial topology, and fields related to computer spatial analysis.
In 5-limit just intonation, the diminished chord on VII (in C: B–D–F) is 15:8, 9:8, and 4:3, while on II (in C: D–F–A ♭) it is 9:8, 4:3, and 8:5 (135:160:192). According to Georg Andreas Sorge , the trumpet , in its overtone series on C, gives the diminished triad E–G–B ♭ = 5:6:7 ("perfect diminished chord" [ 11 ] ), but the 7 ...
3,9-Divinyl-2,4,8,10-tetraoxaspiro[5.5]undecane is without impurity a white crystalline powder. [1] However, DVTOSU is often sold as a liquid, due to its low crystallization tendency. [ 9 ] The highly variable data on yields and boiling points during the first fractionated distillation indicate by-products, e.g. by rearrangement of the double ...
Then Krull's principal ideal theorem implies that n ≥ dim A, and A is regular whenever n = dim A. The concept is motivated by its geometric meaning. A point x on an algebraic variety X is nonsingular (a smooth point ) if and only if the local ring O X , x {\displaystyle {\mathcal {O}}_{X,x}} of germs at x is regular.
[1] [4] For instance, the interval from A to C is a minor third, three semitones wide, and both the intervals from A ♯ to C, and from A to C ♭ are diminished thirds, two semitones wide. Being diminished, it is considered a dissonant interval. [5]
3,3′-Diindolylmethane (DIM) is a compound derived from the digestion of indole-3-carbinol, found in cruciferous vegetables, such as broccoli, Brussels sprouts, cabbage and kale. [1] It and its parent compound – indole-3-carbinol – are under laboratory research to determine their possible biological properties, particularly in anti-cancer ...
Additionally, 248 is: a nontotient.; a refactorable number.; an untouchable number. [1]palindromic in bases 13 (161 13), 30 (88 30), 61 (44 61) and 123 (22 123).; a Harshad number in bases 3, 4, 6, 7, 9, 11, 13 (and 18 other bases).
The Great Northern Railway (Ireland) (GNRI) VS class steam locomotives were 4-4-0 three-cylinder simple expansion steam locomotives built in 1948 by Beyer, Peacock and Company. [2] They were procured in order to operate the Enterprise train service between Dublin and Belfast and were the last series of steam engines ordered by the company. [3]