Composite topology

The authors feel that compounds need to be sufficiently complex in order to provide a significant level of information content. On the other hand, compounds that are too complex may be viewed as undesirable. A number of measures for characterizing molecular complexity have been developed over the years. Complexity has been defined in terms of size, elemental composition, topology, symmetry, and functional groups present in a molecule (17,18). In the present work, we have applied a simple, chemically intuitive measure developed by Barone and Channon (18). This approach is based on a simple additive model, where values are assigned to specific classes of molecular features such as the types of atoms and bonding patterns, and the number and types of rings. This is illustrated in Eq. 2.1 ... 

In a composite material where small particles (inclusions) are distributed in a host material, an overall third-order ncxilinear susceptibility should be a function of both host and inclusions third-order nonlinear susceptibilities. Here we consider a composite topology where the inclusions are sphere of radius a, and we define a... 

So the point here is as follows if we have a composite topology in which the duty cycle of a buck in CCM is used to drive a buck-boost in DCM, we can get the dependency on Vin above to cancel out completely as follows ... 

We can also use the fact that the output voltage of a discontinuous mode converter at a given duty cycle depends on its inductance. So we can tune the slave buck-boost to have the required output level (at its expected maximum load current) by a careful choice of inductance. Within a valid range, this technique provides completely adjustable auxiliary output voltages, something we cannot normally expect from composite topologies based only on continuous conduction modes. 

The composition, topology and functionality of materials prepared by CRP can be preselected to provide products with a wide spectmm of desirable properties and many corporations have prepared a number of materials by CRP for internal evaluation in their target markets. Target markets for these tailored... 

Polymeric materials are based on both precise control of molecular structure through polymerization and subsequent processing techniques. The necessary requirements for designing and processing of polymeric materials are functionality, composition, topology, and chain uniformity. The structure of polymer materials consists of designed architectures and this property helps accomplish various applications. 

D models. Not oidy topology, but also the stereochemistry of the molecule is taken into accormt at the 3D level. It is possible to differentiate all the simplexes as right (R), left (L), symmetrical (S) and plane (P) achiral (Fig. 14.2). Stereochemical configuration of simplexes is defined by a modified Kahn-lngold-Prelog ntle. An SD at this level is a nttmber of simplexes of fixed composition, topology, chirality and symmetry (Fig. 14.1). 

The steady-state, unidirectional heat flux methods have provided sparse but reliable data for thermal conduction across the PTL planes. However, the tridimensional variations and the effects of humidity or partial flooding on the thermal conductivities across different materials of interfaces are not known. As illustrated in Figure 5.6, the differences in material composition, topology, and conditions result in large variations in the thermal conductivity. 

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