concave


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concave

1. Physics having one or two surfaces curved or ground in the shape of a section of the interior of a sphere, paraboloid, etc.
2. Maths (of a polygon) containing an interior angle greater than 180°

concave

(kong-kayv , kong -kayv) Curving inward. A concave mirror converges light. A biconcave or planoconcave lens, thinner in the middle than at the edges, has a diverging action.

Concave

Forms that are curved like the inner surface of a hollow sphere or circular arc.

concave

[′kän‚kāv]
(science and technology)
Having a curved form which bulges inward resembling the interior of a sphere or cylinder or a section of these bodies.
References in periodicals archive ?
The hypothesis in the present research was that covering the spaces between the cylinder rasp bars has a positive effect on corn grain damage during threshing (the percentage of damaged grain decreases) and on grain separation through the concave (the percentage of threshed grains passed onto the straw walkers decreases).
Incision was placed on the entire length of haematoma on concave surface of pinna over the thin layer of gauze piece.
We chose a concave regularization also because of its parameter-estimation consistency, able to correct the intrinsic estimation biases from Lasso [11].
This article is structured as follows: section two introduces the standard model and studies the equivalence of the games induced by a convex and a concave transport cost function.
For LU, 31 subjects presented with concave curvature of the LU profile: 16 limited community ambulators, 11 household ambulators, and 4 community ambulators.
Thus the (11) and (12) satisfies the conditions of log concave and log convex.
First, the internal and external conical connections were compared to the concave and convex ones.
Fig 6 shows the oil flow pattern of dimple concave model, the shear stresses near them are significantly higher than other places.
Each child was shown 10 images and asked whether they were convex or concave.
In this study, we suggest a concave MLA (or "planar concave" MLA, hereinafter called "concave" MLA) as an optical pattern in the LGP, which shows a higher luminance than the convex MLA (or "planar convex" MLA, hereinafter "convex" MLA) for the same point light sources.