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A spheroid, also known as an ellipsoid of revolution or rotational ellipsoid, is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters. A spheroid has circular symmetry.
Dec 27, 2023 · A spheroid is a three-dimensional shape created from a two-dimensional ellipse. The ellipse is an oval, with a major axis (the longer axis), and a minor axis (the shorter axis). If you rotate the ellipse around one of its axes, the shape of the rotated figure is a spheroid.
Dec 12, 2019 · There are various spheroid culture methods such as hanging drop, gel embedding, magnetic levitation, and spinner culture. Lately, efforts are being made to apply the spheroid culture system to the study of drug delivery platforms and co-cultures, and to regulate differentiation and pluripotency.
- Na-Eun Ryu, Soo-Hong Lee, Hansoo Park
- 10.3390/cells8121620
- 2019
- Cells. 2019 Dec; 8(12): 1620.
May 30, 2024 · A spheroid is an ellipsoid having two axes of equal length, making it a surface of revolution. By convention, the two distinct axis lengths are denoted a and c, and the spheroid is oriented so that its axis of rotational symmetric is along the z-axis, giving it the parametric representation x = asinvcosu (1) y = asinvsinu (2) z = ccosv, (3 ...
A spheroid can be made by taking an ellipse and rotating it about its major or minor axis. Press play to see: images/solid-rev.js?mode=ellipse. Volume and Area of a Sphere Calculator Geometry index.
In spherical coordinate system for which , the general ellipsoid is defined as: where is the polar angle and is the azimuthal angle. When , the ellipsoid is a sphere. When , the ellipsoid is a spheroid or ellipsoid of revolution. In particular, if , it is an oblate spheroid; if , it is a prolate spheroid .
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A spheroid, or ellipsoid of revolution is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters. If the ellipse is rotated about its major axis, the result is a prolate (elongated) spheroid, like an American football or rugby ball.
