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A petal fold starts with two connected flaps, each of which has at least two layers. (For example, two flaps of a preliminary base). The two flaps are attached to each other along a reference crease. Make two radial folds from the open point, so that the open edges lie along the reference crease. Unfold these two radial folds.
Papery (upper) and leafy bracts on hay rattle (Rhinanthus minor).All the "leaves" in this image are bracts. In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis, or cone scale.
Often the cone-in-cone will be found as features of calcite layers within a shale, [5] and rarely within a dedolomite (calcitized dolomite). [6] Cone-in-cone structures should not be confused with either shatter cones such as are produced by meteorite impacts, or with shear cones like those developed in coals. Both these structures differ from ...
A petal often consists of two parts: the upper broader part, similar to a leaf blade, also called the blade; and the lower narrower part, similar to a leaf petiole, called the claw, [3] separated from each other at the limb. Claws are distinctly developed in petals of some flowers of the family Brassicaceae, such as Erysimum cheiri.
A petal projection is a description of a knot as a special kind of knot diagram, a two-dimensional self-crossing curve formed by projecting the knot from three dimensions down to a plane. In a petal projection, this diagram has only one crossing point, forming a topological rose. Every two branches of the curve that pass through this point ...
Cheryl Cohen Greene is a 68-year-old loving grandmother and cancer survivor who's been happily married for 33 years. In that time, she's slept with hundreds of other men in her conjugal bed, and ...
Cone beam set-up. Cone beam reconstruction uses a 2-dimensional approach for obtaining projection data. Instead of utilizing a single row of detectors, as fan beam methods do, a cone beam systems uses a standard charge-coupled device camera, focused on a scintillator material. The scintillator converts X-ray radiation to visible light, which is ...
General parameters used for constructing nose cone profiles. Given the problem of the aerodynamic design of the nose cone section of any vehicle or body meant to travel through a compressible fluid medium (such as a rocket or aircraft, missile, shell or bullet), an important problem is the determination of the nose cone geometrical shape for optimum performance.