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Cube structure

Multivariate Image Analysis Strong and Weak Multiway Methods Strong and weak -way methods analyze 3D and 2D matrices, respectively. Hyperspectral data cube structure is described using chemometric vocabulary [17]. A two-way matrix, such as a classical NIR spectroscopy data set, has two modes object (matrix lines) and V variables (matrix columns). Hyperspectral data cubes possess two object modes and one variable mode and can be written as an OOV data array because of their two spatial directions. [Pg.418]

A Study Figs. 4.1-43 and convince yourself of the structural relatedness of all of the cube structures and of all of the hexagonal structures. [Pg.616]

Atwood et al. have gone on to prepare a truly enormous molecular capsule along these principles, which conforms to the geometry of a snub cube (structure (1) in Figure 10.47). Reaction of six equivalents of the octol [4] resorcarene (with either methyl or undecyl feet ) with eight water molecules results in... [Pg.682]

In Figure 2.14a, the 48-vertex structure of the great rhombicuboctahedron is divided into two sets of 24 points, coloured to distinguish two sets related by the inversion operation. Each set of 24 vertices now exhibit O symmetry and are examples of the chiral polyhedra based on the snub cube structure, displayed as the ri-isomer as a projection in Figure 2.14b and as a perspective drawing in Figure 2.14b. [Pg.44]

The various rotational axes can be identified by examination of the snub cube structure. Figure 2.14c, which spans the regular orbit of O. As the lower orbits, Oe, Os and O12, Figures 2.14d-f, are all intrinsically achiral, any object of O symmetry must contain at least one copy of the chiral regular orbit, it is allowed that the lower order orbits Oe, O12 and Os of Oh symmetry can be formed by coalescing appropriate local sets of vertices of the regular orbit onto the poles of the rotational axes as shown in Figures 2.15d-f. [Pg.45]

Figure 2.14 Division of the regular 48-vertex orbit of 0[, symmetry (a) into the two 24-point sets of the chiral snub cube structure. The dextro projection (b) is also drawn in perspective (c). Coalescing sets of vertices onto the rotational poles leads to the other orbits O, O12 and Os of the O symmetry group. These are achiral they are also orbits of 0[,. Figure 2.14 Division of the regular 48-vertex orbit of 0[, symmetry (a) into the two 24-point sets of the chiral snub cube structure. The dextro projection (b) is also drawn in perspective (c). Coalescing sets of vertices onto the rotational poles leads to the other orbits O, O12 and Os of the O symmetry group. These are achiral they are also orbits of 0[,.
OLAP (online analytical processing) The sophisticated manipulation of data for analytic purposes, often using data organized into the cube structure. [Pg.522]

Figure 10 below illustrates a mock up of the initial target structures we will build with the assembly tank. By selectively plugging some of the holes in the structures we can pre-valve them (while the smart cubes are being developed) and assembly multi-cube structures like the C U structures shown in the figure. We note that the latches on the structures are sufficiently strong that they can support the weight of the structure after the assembly fluid is drained. [Pg.565]

The values ( 1) reflect the biradical character in the silsesquioxanes (the lowest singlet and triplet energies strongly mixed in the unrestricted wavefunction), in agreement with the fairly small S-T energy separations. In fact, the S-T separations are smaller than in trimethylene (see Table 30.1). This indicates that these species, exemplified here by the various cube structures, behave as electronic isolators , as witnessed in the experimental investigations. At least this is strongly dictated for the 1.4-biradical structure-type. [Pg.399]

Structure.Bacterial ferredoxin shows a very similar band pattern (Fig. 22, third spectrum), indicating a similar distortion of the cube. The spectrum of HiPIP (high-potential iron protein) from C. vinosum (Fig. 22, second spectrum) appears to be simpler and was interpreted as indicating a relatively undistorted cube structure, but at higher resolution the spectrum has been found to show band splittings, which are more pro-... [Pg.453]

Although the cube structures 6 and 7 appear to be highly symmetric, closer inspection reveals that the cages show no symmetry at all. A strong distortion of the cube is indicated by the broad range of the Ti-O-Si angles from 137.13° to 165.09°. [Pg.432]

Figure 7 A possible flattened-cube structure for an all-zwitterionic serine octamer. (a) Front view, (b) Side view of the carboxylate-ammonium salt bridges between different serine molecules. Attractive electrostatic forces between car-boxylates and ammonium groups are marked with arrows, (c) Top view showing the regular pattern of the CH2OH side chains which mediates chiral recognition. Dotted lines indicate serine-carboxylate hydrogen bonds connecting the four top serines. A similar arrangement is realized for the other four series. This structure represents the unprotonated cluster. CH3 refers to the position of the methyl groups of threonine and show them to be located in a sterically nonobstructed position. (Reproduced from Ref. 41. Elsevier, 2002.)... Figure 7 A possible flattened-cube structure for an all-zwitterionic serine octamer. (a) Front view, (b) Side view of the carboxylate-ammonium salt bridges between different serine molecules. Attractive electrostatic forces between car-boxylates and ammonium groups are marked with arrows, (c) Top view showing the regular pattern of the CH2OH side chains which mediates chiral recognition. Dotted lines indicate serine-carboxylate hydrogen bonds connecting the four top serines. A similar arrangement is realized for the other four series. This structure represents the unprotonated cluster. CH3 refers to the position of the methyl groups of threonine and show them to be located in a sterically nonobstructed position. (Reproduced from Ref. 41. Elsevier, 2002.)...
The cubing model is a wood-like plastic model processed with three-dimensional structure that is adjusted to the optical requirements with pastes and filing tools. Here, the designer can create an overall impression of the product itself, and also an overall design with surrounding cubing structures. This only serves the visual decision-making. Functionalities cannot be tested here. [Pg.497]

The cube structure of Nancy G. Leveson is no longer discussed in this book. Only the product technical viewpoint is further considered. The organizational stmcture or the viewpoint of customers or suppliers— those are considered in the product planning, project planning and determination of organizational interfaces. However, these aspects form the basis for the planning of safety activities in the project safety plan as a derivation of the safety lifecycle (compare to ISO 26262, part 2, chapter 6.4.3, Planning and coordination of the safety activities ). [Pg.56]


See other pages where Cube structure is mentioned: [Pg.27]    [Pg.38]    [Pg.1244]    [Pg.657]    [Pg.230]    [Pg.392]    [Pg.251]    [Pg.807]    [Pg.426]    [Pg.27]    [Pg.624]    [Pg.282]    [Pg.37]    [Pg.691]    [Pg.3083]    [Pg.379]    [Pg.1409]    [Pg.200]    [Pg.159]    [Pg.772]    [Pg.774]    [Pg.19]   
See also in sourсe #XX -- [ Pg.7 , Pg.10 ]




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Cube structure symmetry groups

Cubing

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