Architectural differences

Dendrimers and hyperbranched polymers are two groups of materials resembling each other. The architectural difference is that dendrimers are perfectly branched structures, while hyperbranched polymers contain defects. Dendrimers are mono-dispersed while hyperbranched polymers are more dispersed which can be an advantage in some applications. 

Strzepek RF and Harrison PJ (2004) Photosynthetic architecture differs in coastal and oceanic diatoms. Nature 431 689-692. 

This approach has been used by many groups to produce a wide variety of architecturally different model porphyrins, e.g. picket-fence, capped, cyclophane, crowned, strapped, basket-handle, etc., which are discussed below. 

Generally when working with SIS, one can say that the /S-factor model is undoubtedly applicable for A = 2 components. The question becomes evident when the number of components increase and the architectures differ, i.e. architectures such as 2009, 4009, 8009 and so forth. Preferably, one should know the distribution of number of components that fail due to a CCF, but this is usually not the case. Intuitively, one would think that a 2009 system should not be treated similarly as an 8009 system with respect to CCFs. Since the 2009 system has greater redundancy than the 8009 system, it seems less likely for the 2009 to be as prone to CCFs as the 8009 system. Thus, the PDS method is preferable instead of the /3-factor model when N > 2. As seen in the different examples, the calculus involved when applying the PDS method is relatively simple. The independent failures are shghtly more complicated when dealing with the PDS method. 

The simplest are diblock copolymers, where two different polymeric chains are bound together and with an increase of block number, tri- or multiblocks with a variety of structures can be obtained [31,32]. Most block copolymers used today are prepared by living anionic polymerization, which is a feasible method to prepare block copolymers with controlled architecture. Different polymers do not mix well due to thermodynamic reasons [33], especially if their molecular mass is sufficiently high, they have a strong tendency to form separated phases. In block copolymers, this phase separation can occur only intermolecularly (micro- or nanophase separation) [34]. Those block copolymers... 

Handa V, Pannu H, Siddique S, et al. (2003) Architectural differences in the bony pelvis of women with and without pelvic floor disorders. Obstet Gynecol 102 1283-1290... 

Concerning the need to produce PUR scaffold with biomimetic architecture, different fabrication techniques are available, including both conventional and rapid prototyping techniques. Depending on the PUR physicochemical properties and final scaffold requirements, an optimal fabrication technique can be selected. Table 6.6 summarises the main scaffold fabrication techniques and their advantages and disadvantages. 

HL7 makes no presumptions related to the architecture of the medical informatics system, and does not try to resolve the architectural differences present in medical informatics systems. Due to this reason, HL7 cannot have a plug and play" interface. 

Synthesis and Structural Features. PLL-g-dextran copolymers with a variety of different architectures (different grafting ratios and lengths of the backbone) were successfully synthesized. Characterization by H-NMR and GPC-MALS was performed to evaluate the grafting ratios and molecular weights, respectively. The detailed structural features of the synthesized copolymers are shown in Table 1. 

As a result of their diverse architecture, different descriptors such as whiskers, nanowhiskers, cellulose nanocrystals, nano-crystalline cellulose, monocrystals or microcrystallites are used in literature to describe crystalline rod-like nanoparticles (Eichhom et al, 2010 Frone et al, 2011 Khalil et al, 2012), while terms such as microfibrils, microfibrillated cellulose or nanofibrillated cellulose are used to describe cellulosic nanoparticles that are obtained as a result of mechanical shearing disintegration process (Siqueira et al, 2010 Siqueira et al, 2011). In this paper, sources, isolation, property and applications of natural cellulose fibers are reviewed. 

Gantry Systems (Active Devices). The gantry-style architecture differs from the turret because the printed circuit board is fixed in place and the moving gantry locates the... 

The automatic actuation signals provided by the DAS are generated in a functionally diverse manner from the PMS signals. Diversity between DAS and PMS is achieved by the use of different architectures, different hardware implementations, and different software, where software is used. See subsection 7.7.1.11 of Reference 6.1 for a full description ofthe separation between the DAS and the PMS. 

Interlocked Architectures Different D-A systems including fullerene have been assembled using a molecular interlocked design. 

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