axis of symmetry


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axis of symmetry

[′ak·səs əv ′sim·ə·trē]
(mechanics)
An imaginary line about which a geometrical figure is symmetric. Also known as symmetry axis.
References in periodicals archive ?
This was followed by computing colour difference between blocks using the Euclidean distance in the RGB colour space (each colour block is compared with every other block in the image and not only to its corresponding one about the axis of symmetry).
9, in the both sides of the vapor bubble, the liquid particles along the axis of symmetry are less acceleration.
The most intensified movement of the molten metal macroflows is observed in the case in which only one vortex zone of the force field exists in the volume of the melt of one part of the crucible in relation to the vertical axis of symmetry. Consequently, only one macroflow forms.
1 (the intersections of the corresponding contact lines with a plane through the axis of symmetry) are of particular importance, since the velocity is not single-valued there, if the no-slip boundary condition is applied along the wall, whereas the contact points move.
A passive solenoid magnet is placed around the decay region, with its axis of symmetry perpendicular to the incident neutron beam, along the x coordinate.
The passage coincides reasonably well with the axis of symmetry of the entire structure, and because this line and the entrance are directed toward winter solstice sunrise, O'Kelly occupied the central chamber on December 21, 1969.
The greater size of the eurhythmy room, and the placing of main entrance and stair opposite it in plan, produce a dominant east-west axis, the main axis of symmetry. In contrast the hexagonal hall is played up for its centrality, with a hexagonal well to the upper floor and a triangular rooflight above, the exposed roof structure bringing the whole building to a tidy climax.
Some groupings will be obvious: We will be able to see not only three of the Onements together (Onement I, 1948; III, 1949; and V, 1952) but also several related works in which a field is "declared" (Newman's favorite word) by a "zip" smack along the axis of symmetry: from the almost never shown End of Silence, 1949 (which is absolutely singular in its impastoed paint kneaded over the entire surface with a palette knife), to the second version of Be I, dating from 1970.
In his early sketches, however, Webern wrote the theme so that the first and last trichords were related not by retrograde, but by retrograde inversion around the axis of symmetry. See Lynn, "12-Tone Symmetry," 645.
In tension, compression, and torsion about the axis of symmetry, most of the strength of a cylindrical structure comes from the walls, not the interior.
(3) The elements of an encodement are arranged so that the edges of the facsimile element which are nearer to the observer are close to the axis of symmetry of the encodement.
This difference can be quantified by measuring the asymmetry of the Lorenz curve around the other diagonal (axis of symmetry in Fig.