central plane


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central plane

[′sen·trəl ′plān]
(mathematics)
For a fixed ruling of a ruled surface, the plane tangent to the surface at the central point of the ruling.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Figure 2 and Figure 3 show the airflow patterns and velocity distribution at the central plane for three levels of supply airflow rates.
Randall and Reese suggest that the cycle of doom closely matches the rate at which the sun passes through Milky Way's central plane, hinting that the actual culprit could be galaxy's "dark disk."
In these equations u and t are the surface parameters, s is the tooth thickness measured on the pitch circle in the central plane, and [alpha] is the standard pressure angle.
The snow line only exists in a narrow region on the central plane of TW Hydrae's protoplanetary disk 6 above and below the center line, the heat from the star prevents carbon monoxide from freezing.
Reynolds leads the Swift Galactic Plane Survey, a project to image a two-degree-wide strip along the Milky Way's central plane at X-ray and ultraviolet energies at the same time.
The electric field distribution in the central plane of the quiet zone for every feed position is obtained by planar probe scanning.
* Angle of sight construction is determined according to the central plane of sight (SLV), which is defined by eye height when sitting (I).
O4, O5, O4A, and O5A (from four water molecules) all essentially lie on a central plane with the sodium atom.
The activation detectors for the absolute flux measurements were gold and copper foils placed in the central plane. One detector set was covered with a 1 mm thick Cd screen.
Classical plate theory of thin structures shows how the disk strain-energy can be uncoupled into two components: in-plane extension-compression energy, calculated by noting the relative movement of points in the central plane of the disk (an imaginary plane that halves the disk into two thinner disks); and out-of-plane bending energy that causes curvature changes on the disk surface, but no relative movement of neighboring points in the disk central plane; (19, 20) and the Appendix.

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