The Penrose rhomb
substitution  uses the prototile set R(5) and also involves tiling inflated prototiles with distorted boundaries, but pairs of opposite edges do not share the same distortion.
This method uses as prototiles the set of rhombs
with angles that are integer multiples of [pi]/n, and includes various special cases that have already been constructed by hand for low values of n.
Black circles show the measured Ag depth profile by RBS, and open gray rhombs
are the theoretical Si depth profile by SRIM simulation.
Next, on the border of level 1, the elements are equal to "a", where "a" is the sum of all elements of the previous border, the "a"s form a rhomb
too inside the previous one.
Both the separated and overlapping triangular etch marks of various size ranging between 2 and 10 [micro]m can be clearly seen on the rhomb
Hence, in determining rhombs
with maximal number of rows, a further restriction is needed: only ramps with no repeated horizontal words should be allowed.
In the Hatched Group geometric motifs (band, triangle, rhomb
, arcade, wave, circle, and miscellaneous - including some animals) are emphasized by hatching and combined with subordinate design elements (illustrated on fig.
They could also have added RHOMB
, in which the final B is sometimes sounded.
8b) generally composed of individual rhomb
shaped crystals of dolomite or as mosaics of dolomite crystals (Fig.
In the end of the IV--the beginning of III millennium BC amber adornments were left in cemeteries and settlements with Comb Ware in Karelia and Finland, Rhomb
Ware in Karelia and Leningrad district, Pit-Comb Ware in Valdai (Fig.
This only provides the setting for a rich red, 5-inch perfectly shaped rhomb
of rhodochrosite with a similar but smaller crystal off to its left.