concave shape


  • WordNet 3.6
    • n concave shape a shape that curves or bends inward
    • ***


In literature:

The red corpuscles are circular disks about 1/3200 of an inch in diameter, and double concave in shape.
"A Practical Physiology" by Albert F. Blaisdell
The next operation is to place the blank in a concave die, on which a slight touch from a concave punch produces the shape of a semitube.
"Rides on Railways" by Samuel Sidney
The leaves in form are lance-shaped, concave, reflexed near the ends, and sharp-pointed.
"Hardy Perennials and Old Fashioned Flowers" by John Wood
The ceiling was arranged in the shape of a dome, while the floor made a concave connection with the wall.
"Born Again" by Alfred Lawson
They are frequently circular in shape, and either flat or slightly concave; the latter are the prettier.
"Embroidery and Tapestry Weaving" by Grace Christie
A peculiar tree with concave leaves shaped like a cup was locally called Ariticun or Articun.
"Across Unknown South America" by Arnold Henry Savage Landor
The bricks composing it are trapezoidal in shape, two of their edges being slightly rounded, the one concave, the other convex.
"A History of Art in Chaldæa & Assyria, v. 1" by Georges Perrot
Hammer into natural concave shape with a bit of heavy wood rounded into a ball at one end for the purpose.
"Taxidermy" by Leon Luther Pray
The altar-piece itself, slightly concave in shape, is the largest, if not the best, of its kind.
"The Cathedrals of Northern Spain" by Charles Rudy
Corolla 5-lobed, open or concave, wheel-shaped; the lobes broad and rounded, a little unequal.
"The Manual of the Botany of the Northern United States" by Asa Gray
It is somewhat tongue-shaped and slightly concave-convex.
"The Archaeology of the Yakima Valley" by Harlan Ingersoll Smith
It is of a triangular shape, being concave before and convex behind.
"A System of Midwifery" by Edward Rigby

In news:

With the concave shape of the asphalt lanes, the path of the ball can be unpredictable.
Flying snakes flatten their bodies into a concave C shape to trap air as they fall.
"Listening Vessel " is an interactive listening device in the shape of a concave semi-sphere, made out of granite.

In science:

In a range Γ† < Γ < Γ∗ , they consist simply of two convex arcs and two concave ones joining smoothly, to form a ”peanut” shape.
Optimum Placement of Post-1PN GW Chirp Templates Made Simple at any Match Level via Tanaka-Tagoshi Coordinates
The limiting shape of this set is compact and convex, and the local size is given by a concave growth exponent.
Shape and local growth for multidimensional branching random walks in random environment
Thus a maximizer of the R ´enyi entropy of order p under a log-concavity shape constraint and a supremum norm constraint is the exponential distribution, irrespective of p.
The entropy per coordinate of a random vector is highly constrained under convexity conditions
Then the first inequality of Corollary IX.8 follows from concavity of entropy, while the second follows from Proposition I.2. A limitation (perhaps unavoidable) of this result is that as dimension increases, the shape requirement on the prior m becomes increasingly stringent.
The entropy per coordinate of a random vector is highly constrained under convexity conditions
Normal healthy bi-concave shaped (discocytic) erythrocytes possess circular symmetry.
Optical tweezer for probing erythrocyte membrane deformability
Corollary 1 For the location family where each ζj is a normal distribution with mean zero and with fixed variance, or Gumbel distribution with mean zeros and fixed shape parameter, l((cid:126)θ; D) is concave.
Random Utility Theory for Social Choice
If this is now combined with a propagation model in which λ(E ) has a compensatory concave shape.
The Phenomena of High Energy Astrophysics
Thus, we get discrete concave function R λ + RR b on the face 1 with increments λ, µ and σ , where σ denotes the shape of the array a ⊗ b.
Arrays and the octahedron recurrence
Therefore, on the face 3 is located a discrete concave function with the increments σ, ν and π , where π denotes the shape of the array a ⊗ b ⊗ c.
Arrays and the octahedron recurrence
That is a discrete concave function with increments µ, ν τ , where τ denotes the shape of the array b ⊗ c.
Arrays and the octahedron recurrence
It evidently shows an effect of individual characteristics, and the concave shape is reminiscent of the job submission interval in supercomputers .
Testing a priority-based queue model with Linux command histories
The two sections of the shape are similar arcs of two parabolas with the common horizontal axis and concavities turned one towards the other — see figure 4.
Two-dimensional body of maximum mean resistance
Smoothing the ∆ versus Σ plot provides a hook curve, whose characteristic shape typically assumes the concave downwards curve shown in Figure 1.
Physico-chemical modelling of target depletion during hybridisation on oligonulceotide microarrays
The DSA theory predicts observational features that can be tested with Cherenkov telescopes: The characteristic feature of shock acceleration in the non-linear regime is a concave shape of the particle energy distribution.
TeV Astronomy
We settle this question now, at least asymptotically, thanks to a slight generalization of Theorem 5.2 in to the case where G is not necessarily concave (see the ”U-shape” framework described in Section 3.2 for instance).
A leave-p-out based estimation of the proportion of null hypotheses