Developable domains

Fig. 9 (a) Sketch of the structure of the hexagonal columnar phase of DNA, showing parallel molecules hexagonally packed in the plane perpendicular to their axis, a and 4 are the lattice parameters, (b) COL developable domains observed in polarized microscopy, w indicates defect walls between differently oriented domains, while 7t stands for point defect around which DNA molecules continuously bend (size bar is 10 pm). Adapted with permission from [27]... 

The question of building general tools, which can be parameterized for a specific context, was addressed by different groups within IMPROVE. Can this be made to a uniform approach for tool construction, i.e. not to develop domain- or context-specific tools, but instead general and parameterizable ones ... 

Fig. 6.4.6. Developable domains in the columnar phase, (a) The developable surface is degenerated into a straight line d common to the planes P. The columnar axes C form coaxial circles about 5. b) The developable surface Z) is a cylinder. The columns (or the layers in the case of smectic A) are a set of parallel and equispaced involutes of a circle, (c) A Reimann surface generated by half-tangents to a helix. The columns are normal to the half-tangents. (Bouligand. )...

Figure 7 Structure of a focal-conic domain of a smectic A phase. The growth of a Dupin cycllde (both plan and side elevation) where the layers are depicted as circles and the molecules are only shown in one layer (A) a plan view, and (B) a section through the fully developed domain. (Data from Gray and Good-by, 1984.)...

Fig. 9.21. (a) Space-filling problem for straight columns, (b) Schematic of a developable domain in a columnar phase... 

Domain name service is created Paul Mockapetris and Graig Partridge develop domain name service, which links unique Internet protocol (IP) numerical addresses to names with suffixes such as. mil,. com,. org, and. edu. 

Kelley, 2003) and in Europe (Psillos Meheut, 2001 Meheut Psillos, in press). In Sweden the government demands eonsiderably more of the kind of researeh that turns directly to the school world and emphasises especially the need of research in didactics of subject matter. This work, including developing domain-specific theories, is probably a way to strengthen science education as an autonomous discipline, which is in the interest of both teachers and researchers. 

SO amide linkages, just as with proteins in solution. Our survey follows the same path from smaller to larger ligands, first in some detail for the infrared (vibrational) spectral domain, and then more briefly for the less well developed domain of electronic (visible/ultraviolet) spectra. 

In dip-coating with the phase-separating reaction solution, the developing domains in the deposited layer are rapidly solidified by an evaporation-induced gelation. Such rapid freezing of the transient structure results in various two-dimensionally phase separated structures on a substrate. Due to the presence of free surface contacting to atmosphere, asymmetric structures in the depth direction are often observed depending mainly on the affinity of gel phase to the substrate. In the case that the gel phase tends to wet and spread on the substrate surface, the domains of solvent phase are expelled from the surface. 

Tetracatenars 2mm-2mm Within the homologous series with a six-benzene-ring core 26 [24], only one type of mesophase has been detected by optical observations. The textures are fan-shaped, with developable domains in every way similar to those of the Oh phase of tetracatenars 2mp-2mp. As an example, for the compound with n = 10 K 76 °C Oh 110 °C I. Despite the unusual length of the central rigid part, the transition temperatures are surprisingly low (Table 10), a fact evidently connected with the meta position of all the alkyloxy chains. 

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