For our logo, my father made a design of an interlocking triangle, circle, and square, an allusion to a famous discovery of Archimedes.
The workpiece is designed as a circle of Φ28.44 mm over 80 mm and the material of this workpiece is #45 steel; the corresponding machining parameters are listed in Table 2.
Alongside Santa Croce, Brunelleschi appended the Pazzi Chapel, designed geometrically around the motif of a circle within a square.
Several simulations have been carried out to explore the influence of image noises, rotation angle, inner radius, outer radius and circle number to the center location accuracy, and several quantitative or semi-quantitative conclusions have been obtained, which can guide the optimum design of concentric circle target.
As for the pachyderm product, it is one smallish, attached lump, capped with what appears to be black-and-white beadwork (in reality pushpin heads) in a design of concentric circles.
Cope chests, based on the quadrant of a circle and designed to preserve the embroidered surfaces by keeping the copes flat, were a common feature of medieval cathedrals.
In the nineteen eighties, when the Central Park Conservancy began the long process of rescuing and restoring the park, the architect Gerald Allen designed new decorative paving that consisted of a circle of brick and bluestone around the fountain and another circle of brick and bluestone around the perimeter, keeping a wide swath of asphalt in the middle.
Layering was a big theme, there were tunic tops featuring designs such as a circle of minotaurs holding hands and Picassoesque eyes worn over quarter length trousers – some in warm storm colours, others in pink and purple tartans and monochrome polka dots.
As these tracks crisscross and merge, they create an ephemeral design of concentric circles, journey lines and abstract shapes reminiscent of an Indigenous Australian dot painting.
The introduction of a hairpin into the design of the open circle probes, similar to approaches taken in molecular beacon design [ 12], provides a means to regulate the degree of ligation discrimination.
