midplane


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pel·vic plane of least di·men·sions

the plane that extends from the end of the sacrum to the inferior border of the pubic symphysis; it is bounded posteriorly by the end of the sacrum, laterally by the ischial spines, and anteriorly by the inferior border of the pubic symphysis.

midplane

(1) Midsagittal plane, see there.
(2) Pelvic plane of least dimensions, see there.

midplane

(mĭd′plān)
1. The plane bisecting a symmetrical structure; the median plane.
2. In obstetrics, the plane of least dimensions in the pelvic outlet.
References in periodicals archive ?
Figure 3 represents the effect of fluid inertia on the dimensionless fluid pressure distribution at the bearing axial midplane ([xi] = 0) at small eccentricity ratios for the numerical solution based on (45), the analytical pressure expression based on (47), and Reynolds equation (i.e., no inertia effect) in (39).
Figure 3 shows the topography and elastic modulus maps and the elastic modulus distribution in the zone of spherulitic core (750 [micro]m from the sample surface, i.e., sample midplane) obtained with different scan areas.
where z is the distance from the midplane to the considering point; u(x,t) and w(x,t) are, respectively, the axial and transverse displacements of the corresponding point on the midplane, and [theta] (x, t) is the cross-sectional rotation.
We assume the midplane displacement of composite plate is [w.sub.0], and it can be expressed as
The damage was introduced by placing mold release wax at the midplane of the laminates at approximately and approximately 7 cm from the beam tip.
Furthermore, the measurements only show the in-plane velocities in the cylinder midplane. 3D CFD simulations are used in this work to complement the PIV measurements, thereby, allowing for detailed analysis in the complete combustion chamber and at all degree crank angles.
Many advanced server, storage and switching equipment use a high-speed midplane or backplane connector.
The lamination scheme is symmetric with respect to the midplane. The angle of fibers orientation is denoted by p, measured from v-axis to the fibers direction as shown in Figure 2(a).
In contrast to longer wavelength observations, which are associated with the midplane of the disk, near-infrared, scattered light coming from the surface of the disk produced this offset, which provides information about the vertical structure of the disk.
For taking down the uterine arteries, the optimal placement of the uterus is a midplane position.
The part geometry in this case necessitated a true, 3D finite element analysis, as contrasted to the traditional thin-shell, midplane type of mesh.
The 3D FE model has been realized using shell elements to model the midplane masonry walls and using truss elements to model the timber roof structures of the nave and aisles.