«RHOMBOHEDRA»に関連する英語の本
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rhombohedraの使いかたを見つけましょう。
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1
Extended Icosahedral Structures
A large triacontahedron is surrounded either by 20 or by 30 small triacontahedra.
The two classes of rhombohedra faces are shown in Fig. 22: for one type, two
face-connected ST are centered on the large diagonal of the rhombic face (Fig.
2
Current Developments in Bioerosion
Spar rhombohedra were attached to naturally occurring bioeroding sponges in
Little Pioneer Bay, Orpheus Island, Palm Island Group, central Great Barrier Reef,
Australia (Fig. 1). They were fixed to sponge-infested materials on the shore- ...
Max Wisshak, Leif Tapanila, 2008
3
Symmetry: Cultural-historical and Ontological Aspects of ...
H.S.M. Coxeter, undoubtedly the modern era's greatest personality in geometry,
who died in Toronto only recently, referred to these as “golden rhombohedra”.
Apart from these two, no other golden rhombohedra exist. Both were already ...
4
Designing the Molecular World: Chemistry at the Frontier
And for the Penrose tiling models, there is no way to arrange the atoms on the
tiles (that is, on the three-dimensional rhombohedra) to give exactly the right
overall composition, because the ratio of the different types of atom in the bulk
material ...
5
Quasicrystals: A Primer
Thus the basic idea is to decorate the prolate and the oblate rhombohedra of a 3-
dim Penrose tiling in such a way that the local atomic arrangements of the R-
phase are preserved to a great extent. In this structure, both the Al and the Cu
atoms ...
6
Clays: Controlling the Environment
They are restricted to two families of rhombohedra: the classic p(10.1) and e1/2(
01.1) rhombohedra, as well as elongate rhombohedra which form on the sides of
the crystals (Fig. 2.3). The classic rhombohedra display well-formed smooth ...
GJ Churchman, RW Fitzpatrick, RA Eggleton, 1995
7
Penrose Tiles to Trapdoor Ciphers: And the Return of Dr Matrix
Ammann's two rhombohedra are the two golden types. The faces of the acute
solid meet along edges at angles of 72 and 108 degrees. Those on the obtuse
solid meet at 36 and 144 degrees. (The four dihedral angles are multiples of 360/
10 ...
8
Rapidly Quenched Materials
This is mainly caused by differing orientations of the rhombic icosahedra, which
are placed between two stars at the vertices of the large rhombohedra. The
derivation was enabled by the investigaQuasicrystals in Al—Ni alloys c. Pohla
and ...
H. Fredriksson, S. Savage, M. Nygren, 1991
Alternative Iy,f a model of the rhombic dodecahedron can be built up by
juxtaposing four obtuse rhombohedra whose faces have diagonals in the ratio 1 :
V2. (A rhombohedron is a parallelepiped bounded by six equal rhombs. It has
two ...
10
Geological Survey Professional Paper
Carbonate is an extremely variable component and occurs as cement, as
authigenic rhombohedra of ankerite, and rarely in detrital grains. A few lithic
clasts of argillite and possibly slate also were noted. The matrix of the graywacke
consists of ...
Geological Survey (U.S.), 1984
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rhombohedraという用語がどのように使われているかを調べてみましょう。
Minerals of the Wolf Tone Mine: Leadville Mining District, Lake …
Calcite, CaCO^sub 3^, has been found as clear to cloudy, sharp, steep rhombohedra to 2 mm. Many of the crystals show a pseudocubic habit and are scattered ... «RedOrbit, 9月 08»
Collecting Microminerals in the Creede Mining District
5 mine, but tiny aggregates of 2-mm pale pink rhombohedra were collected with quartz crystals and other minerals on the dump. Some of the rhombohedra are ... «RedOrbit, 9月 08»
Minerals From the Iron Deposits of New York State
The first generation contains rhombohedral crystals with lateral edges beveled by scalenohedral planes, and noted basal pinacoids {0001} on some crystals. «RedOrbit, 5月 08»
