Single-line schematic drawings

Fig. 3.1. (a) Primitive cell (heavy lines) of the wurtzite-structure lattice placed within a hexagonal prism, a and c are the lattice constants, (b) Schematic drawing of surfaces cut from a hexagonal single crystal with different crystallographic orientations (surface planes)... 

Fig. 22. (a) Franklin s model for pregra-phitic carbon stacked graphene layers are represented by straight lines. Bent or 2.45 A curved lines represent tetrahedrally bonded carbon chains or buckled graphene layers. Tbe nanodispersed silicon atoms are represented as shaded dots. After Wilson and Dahn [194]. (b) Schematic drawing of the lithium sites on a single layer of boron-substituted carbon. The broken circle represents tbe site for additional lithium beyond jc = 1 in Lij((B2Ci z)6. After Dahn et al. [195]. 

Fig. 5.1. Effect of field gradients on the NMR signal for solids and liquids. The sample consists of a rectangular and a circular object. Left, homogeneous magnetic field. Right, linear magnetic field (a) schematic drawing of the field dependence across the sample (b) spectroscopic response for a sample with a single, narrow line in the NMR spectrum and (c) spectroscopic response for a sample with a single, broad line in the NMR spectrum.

Figure 56 Schematic drawings of (a) apertured and (b) apertureless detection of light in scanning near-field microscopes, (c) Near-field Raman image of a single SWNT deposited on a glass coverslip. The contrast in the images reflects the local intensity of the Raman G band (2640 cm ). The inset in (c) shows a Gaussian fit to the line section shown. Reprinted with permission from Anderson, N. Hartschuh, A. Cronin, S. Novotny, L. J. Am. Chem. Soc. 2005, 127,2533. Copyright 2005 American Chemical Society.

Each representation of a protein or nucleic acid conveys to the viewer different aspects of its structure line drawings give the bones, space-filling models the flesh, and schematic diagrams the gestalt of the design. No single representation of a protein or nucleic acid is adequate for all purposes, but the combination of several is more powerful than the total of all taken independently. 

Figure 6.6 (Left ) Stained section of a crab cuticle Carcinus maenas), showing the single twist of protein fibres (some indicated by red lines), characteristic of the chiral thermotropic cholesteric mesophase. (Right ) Schematic relation between nested arc texture in the micrograph and the cholesteric mesostructure. Micrograph and drawing adapted from (9. ...

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