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The manuscript was written on papyrus in sloping irregular uncial letters, with no iota adscript, and with slight spelling errors.The fragment measures 85 by 152 mm. [4] The fragment provides a statement of the 5th proposition of Book 2 of the Elements, together with an unlabelled diagram, and a tiny part of the preceding proposition. [2]
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The corresponding unlabelled diagram gives the Dynkin diagram semisimple part of , the other part being a one-dimensional factor. The Dynkin diagrams for the semisimple ones are obtained by removing one node with coefficient a prime. This leads to the following possibilities: A n: A p × A n − p − 1 × T (non-semisimple)
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Memorial in Jena, Germany to Ernst Karl Abbe, who approximated the diffraction limit of a microscope as = , where d is the resolvable feature size, λ is the wavelength of light, n is the index of refraction of the medium being imaged in, and θ (depicted as α in the inscription) is the half-angle subtended by the optical objective lens (representing the numerical aperture).
A scanning transmission electron microscope (STEM) is a type of transmission electron microscope (TEM). Pronunciation is [stɛm] or [ɛsti:i:ɛm]. As with a conventional transmission electron microscope (CTEM), images are formed by electrons passing through a sufficiently thin specimen. However, unlike CTEM, in STEM the electron beam is focused ...