Definition & Betydelse | Engelska ordet ELLIPSOIDS

Definition av ELLIPSOIDS

1. böjningsform av ellipsoid

Exempel på hur man kan använda ELLIPSOIDS i en mening

• The law was first formulated by Joseph-Louis Lagrange in 1773, followed by Carl Friedrich Gauss in 1835, both in the context of the attraction of ellipsoids.
• In some important semiconductors (notably, silicon) the lowest energies of the conduction band are not symmetrical, as the constant-energy surfaces are now ellipsoids, rather than the spheres in the isotropic case.
• Many other shapes have received attention, including ellipsoids, Platonic and Archimedean solids including tetrahedra, tripods (unions of cubes along three positive axis-parallel rays), and unequal-sphere dimers.
• Distinct flattening as ellipsoids is found in all easily measurable comparators up to a few times of its distance.
• Furthermore, above this bifurcation point, and for constant angular momentum, the solutions that minimize the kinetic energy are the non-axially symmetric Jacobi ellipsoids instead of the Maclaurin spheroids.
• The most common monolithic form is the dome, but ellipsoids and cylinders (resembling concrete Quonset huts / Nissen huts) are also possible using similar construction methods.
• In mathematics, the superquadrics or super-quadrics (also superquadratics) are a family of geometric shapes defined by formulas that resemble those of ellipsoids and other quadrics, except that the squaring operations are replaced by arbitrary powers.
• Although the term egg-shaped usually implies a lack of reflection symmetry across the equatorial plane, it may also refer to true prolate ellipsoids.
• Ellipsoidal coordinates are a formal extension of elliptic coordinates into 3-dimensions, which is based on confocal ellipsoids, hyperboloids of one and two sheets.
• The EPSG Geodetic Parameter Dataset is a widely used database of Earth ellipsoids, geodetic datums, geographic and projected coordinate systems, units of measurement, etc, which was originally created by EPSG and still carries the EPSG initials to this day.
• The prolate spheroidal wave functions are eigenfunctions of the Laplacian in prolate spheroidal coordinates, adapted to boundary conditions on certain ellipsoids of revolution (an ellipse rotated around its long axis, “cigar shape“).
• Gravimetric, based on a geoid; or geometric, based on the same Earth ellipsoids that are used in computing a horizontal datum, such as NOAA's planned gravimetric and Global Navigation Satellite Systems (GNSS)-based Datum of 2022 set to be released that year by the National Geodetic Survey.
• Superellipsoids have an rich shape vocabulary, including cuboids, cylinders, ellipsoids, octahedra and their intermediates.
• Slowly-rotating objects in hydrostatic equilibrium are expected to be oblate spheroids (Maclaurin spheroids), whereas rapidly-rotating objects in hydrostatic equilibrium, such as Haumea which rotates in nearly 4 hours, are expected to be flattened and elongated ellipsoids (Jacobi ellipsoids).
• For the special case of ellipsoids (including infinite cylinders) the demagnetization field is linearly related to the magnetization by a geometry dependent constant called the demagnetizing factor.
• A simple ovoid in real 3-space can be constructed by glueing together two suitable halves of different ellipsoids, such that the result is not a quadric.
• Pyrodinium bahamense cells are shaped like ellipsoids and are covered with thick, protective thecal plates that have many small, evenly distributed knobs and trichocyst pores.
• These include ellipsoids, cylinders, cones, paraboloids, and hyperboloids in all of their various forms.
• Splash-form tektites are tektites that are shaped like spheres, ellipsoids, teardrops, dumbbells, and other forms.
• They consisted of: Lunar Nibs (a sculpture resembling a house, a dumpster and even a feeding trough for cattle, whose main facade looked like a caricatured nineteenth-century residence), On aerial greens (haymakers), (a wall- and floor-based pairing formally resembling a fireplace or hearth) and Brood and Bitter Pass (a large-scale work composed of spun aluminium forms, wooden ellipsoids, ceramic parts and mechanical joints in a worm-like form).

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