Oval

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Oval

the. a cricket ground in south London, in the borough of Lambeth

Oval

Resembling an egg in shape, ellipsoidal or elliptical; it is duocentric with a long and short axis.

Oval

 

a closed convex plane curve. A convex curve is a curve that has no more than two real points in common with any line. The ellipse and the circle are examples of ovals. If an oval has a tangent at every point, then to any direction in the plane there correspond just two tangents parallel to that direction.

Many theorems deal with properties of ovals. We mention two such theorems. (1) On every oval there are at least four points at which the curvature reaches a maximum or minimum. This is the so-called four-vertex theorem. The ellipse has precisely four such points—the ends of the major and minor axes. (2) If we have an oval of constant width, that is, if the distance d between any two parallel tangents to the oval is the same for all directions, then the length of the oval is equal to π d. The circle is the simplest oval of constant width. Another example is the figure obtained (Figure 1) by drawing six arcs of circles with centers at the vertices of an equilateral triangle with side a, where three of the circles have radii c, c arbitrary, and three have radii a + c.

Figure 1

In algebraic geometry the term “oval” is also applied to closed connected components of plane algebraic curves. There, however, the component is not necessarily convex.

oval

[′ō·vəl]
(mathematics)
A curve shaped like a section of an egg.

oval

A marble chip which has been tumbled until a smooth oval shape has resulted; used for terrazzo concrete.
References in periodicals archive ?
length, diameter, bow, ovality, taper), correctly chosen sawing pattern, and correct sawing procedure (log orientation and centering) dominate over the knot structure of the log.
On this project, the synchronized high-resolution video, pipe ovality, robot pitch and water level data allowed us to come to very accurate conclusions about an anomaly that might otherwise not be possible.
This presentation follows the operational life cycle of a laser profiling system designed for evaluating pipe ovality, absolute mean diameters and inclination.
Mike Russin, Business Manager for Pipeline Analytics, said : 'Absent any homegrown standards for pipe ovality measurement, WRc approval has become the de facto standard used by installers, rehab contractors and asset owners throughout North America and beyond.
If ovality is your major concern, then the answer is yes.
The distribution was made of every individual diameter on each pipe end which is commonly referred to as the "global ovality," combining both the ovality and size into one measurement.
Geometry pigs are used to detect deviations from the ideal circular shape of the pipe, such as dents and bulges, ovality, wrinkles, changes in internal diameter, peaking;
RedZone engineers integrate these multisensor data and generate a variety of reports that quantify sediment, corrosion, ovality, and meander and incline.
Use of the rotary/oscillating crosshead is said to result in the reduction or elimination of ovality, an absence of weld lines and the ability to crosslink various polymer materials, in addition to reducing the labor process and extrusion costs, according to the company.
The tank has several other advanced features, each of which contributes to improved process stability and tighter control of wall thickness, ovality, and cut-to-length tolerances, according to the supplier.
ILI tool companies require that data on all ells, types of ells, bends, other types of bends, wall thicknesses, ovality, and pipeline cleanliness be known before running their tool.
The remaining data is specific to rehabilitation projects such as the level of pipe deterioration, ability to negotiate bends and ovality of the host pipe.