Architecture regular array

Block copolymers represent a kind of versatile and powerftil toolbox for the fabrication of polymer cylinders with hierarchic architecture and complex functionality. When chemically dis-tina polymer chains are immiscible and confined in a single chain, the block copolymers will phase-separate in solution or in the bulk. By means of self-assembly, block copolymers with suitable volume fractions can undergo miaophase segregation in the bulk and form regular arrays of cylindrical or tubular morphologies. Due to the unlike physical and chemical properties, the compartments can be individually addressed. Via aoss-linking of cylindrical domain in the self-assembled stmc-tures, polymeric cylinders with side chains tethered to a fixed linear core can be achieved. 

Novel design methodologies and synthesis techniques for regular array processor architectures intended for regular, high-throughput data-flow appli-cations. 

It has been demonstrated that the proposed design script for regular array synthesis leads to efficiently designed architectures. The script has been developed in the context of the Cathedral project. The re-indexing and localization tools, developed respectively at IMEC and IRISA, can be used to allow a higher input behavioral description of an application. The transformations provided by these tools can also be useful in other architecture synthesis areas. 

M. van Swaaij, J. Rosseel, F. Catthoor, and H. De Man. Synthesis of ASIC regular arrays for real-time image processing systems. In E. Deprettere et al., editors, Algorithms and Parallel VLSI Architectures, Vol. B, pages 329-342, Elsevier Science, 1991. 

In contrast to regular planar electrodes, the geometry and mechanical properties of rod-shaped electrodes enable unique three-dimensional microfluidic cell architectures. An array architecture fuel cell was developed by Kjeang et al. [55] based on a hexagonal array of graphite rods mounted in a single cavity, as depicted in Fig. 4.11. In this case, the flow area between the rods exhibited microfluidic laminar flow characteristics similar to those of a planar unit cell. The array cell had 12... 

Fig. 7-3331 1 316 are thought to be packed into an imperfect helix as indicated in Fig. 7-34. The structure can also be regarded as an array of longitudinal protofilaments. Naturally formed microtubules usually have precisely 13 protofilaments and a discontinuity in the helical stacking of subunits as shown in Fig. 7-34. When grown in a laboratory the microtubules usually have 14 protofilaments317 and rarely 10 or 16 protofilaments with regular helical packing.318 Microtubules of some moths and also of male germ cells of Drosophila have 16-protofilament microtubules without a discontinuity, an architecture that is specified by the geometry of a specific P-tubulin isoform.319...

In addition to linear polyphosphazenes with one type of side group, as shown in 3.1, other molecular architectures have also been assembled. These include polyphosphazenes in which two or more different side groups, R1 and R2, are arrayed along the chain in random, regular, or block distributions (3.2-3.4). Other species exist with short phosphazene branches linked to phosphorus atoms in the main chain (3.5,3.6). Also available are macromolecules in which carbon or sulfur replace some of the phosphorus atoms in... 

Entangled systems are extended arrays, more complex than their constituents, that are comprised of individual motifs forming, via interlocking or interweaving, periodic architectures infinite in at least one dimension. Simple interdigitation is not considered here. As previously stated, most of the entangled arrays can be considered regularly repeated infinite versions of finite molecular motifs like catenanes, rotaxanes and pseudo-rotaxanes. 

In a different reaction scheme, one can take advantage of the fimctional porphyrin macrocycle to create metalloporphyrin compounds and nanoarchitectures in 2D. Upon exposure of regular TPyP arrays self-assembled on Ag(lll) to iron monomers supplied by an atomic beam, selective com-plexation occurs whereby the template structure is strictly preserved [156]. This expands the diversity of metalloporphyrin layers conventionally realized by evaporation of integral species, because in-situ metalation provides a route towards novel metalloporphyrin nano architectures and patterned surfaces [156-158]. In a related reaction pathway, evidence could be obtained for in-situ complexation and metal center-induced switching of phenanthroline-based catenane units deposited the Ag(lll) surface [182]. 

In order to match the required throughput or the required array size, it is necessary to partition the initial architecture with full index ranges into a set of serially executed subsets and then to cluster these onto a smaller sized array. This important task has been addressed in depth [5] and is described in chapter 4. Extensions which can result in a better preservation of the regularity, especially for latency-limited applications, are proposed in chapter 3. 

The resulting model consists, thus, of a regular hexagonal array of acidic SGs with fixed end points, as depicted in Figure 2.30b. In spite of the described simplifications, the model retains essential characteristics for studying structural conformations as well as the dynamics of polymer sidechains, water, and protons. The approach implies that the effect of polymer dynamics on processes inside of pores is primarily caused by variations in chemical architecture, packing density, and vibrational flexibility of SGs. 

The distribution of defects in mesophases is often regular, owing to their fluidity, and this introduces pattern repeats. For instance, square polygonal fields are frequent in smectics and cholesteric liquids. Such repeats occur on different scales - at the level of structural units or even at the molecular level. Several types of amphiphilic mesophase can be considered as made of defects . In many examples the defect enters the architecture of a unit cell in a three-dimensional array and the mesophase forms a crystal of defects [119]. Such a situation is found in certain cubic phases in water-lipid systems [120] and in blue phases [121] (see Chap. XII of Vol. 2 of this Handbook). Several blue phases have been modeled as being cubic centred lattices of disclinations in a cholesteric matrix . Mobius disclinations are assumed to join in groups of 4x4 or 8x8, but in nematics or in large-pitch cholesterics such junctions between thin threads are unstable and correspond to brief steps in recombinations. An isotropic droplet or a Ginsburg decrease to zero of the order parameter probably stabilizes these junctions in blue phases. 

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