closed surface


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closed surface

[¦klōzd ′sər·fəs]
(mathematics)
A surface that has no bounding curve.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Their new Sensation floor range offers surface protection that extends all the way into the bevels to create a fully closed surface. Additionally a water repellent coating on the plank edges ensures that water cannot penetrate the floor, making it an ideal and practical choice for kitchens and bathrooms.
Users select the curves needed to create the new surface; Power Surface does the rest by blending those selections to create a smooth, closed surface or solid model.
Let F be a closed surface with x(F) [less than or equal to] 0.
The exterior noise power (ENP) around the vehicle is defined as the acoustic power radiated to the far-field and then can be calculated as an integration of the far-field acoustic intensity over a closed surface which encloses the vehicle at large distance from vehicle.
The algorithm, which is known as DAEDALUS (DNA Origami Sequence Design Algorithm for User-defined Structures) after the Greek craftsman and artist who designed labyrinths that resemble origami's complex scaffold structures, can build any type of 3-D shape, provided it has a closed surface. This can include shapes with one or more holes, such as a torus.
For example, on a closed surface with a mesh structure containing N triangles, the RWG bases have reduced the degrees of freedom from 3N to 1.5N by introducing the divergence conforming property.
The 3D technology then deep draws the veneer, producing a closed surface with a high degree of stability in the formed mats.
To find the fields radiated by the horn, only the tangential components of the E- and H-fields over a closed surface at the aperture must be known.
Also, a taxiway will not be identified as X-Ray to avoid confusion with a closed surface. When airports run out of single letters, they use double letters for taxiway identification.
On the other hand, the second surface is a closed surface with a strong singularity at its uppermost part, where many data points concentrate in a very small volume.