Unified Parallel

L A. D Alotto et ai, A Unified Signal Algebra Approach to Two-Dimensional Parallel Digital Signal Processing (1998)... 

It is envisaged that the interim solution will operate in parallel with the various national test and classification procedures until such a time that the final unified European system is available. 

One of the most intriguing features of olefin metathesis, and an aspect which continues to receive increasing attention, is the stereochemistry of the reaction. Rationalizations of stereochemical peculiarities have undergone a metamorphosis which parallels advances of mechanistic theories from the pairwise scrambling schemes to the now-popular car-bene-to-metallocycle scheme. As yet there exists no unified stereochemical model which can adequately account for all the observed results. 

At shorter distances, particularly those characteristic of H-bonded and other charge-transfer complexes, the concepts of partial covalency, resonance, and chemical forces must be extended to intramolecular species. In such cases the distinction between, e.g., the covalent bond and the H-bond may become completely arbitrary. The concept of supramolecular clusters as fundamental chemical units presents challenges both to theory and to standard methods of structural characterization. Fortunately, the quantal theory of donor-acceptor interactions follows parallel lines for intramolecular and intermolecular cases, allowing seamless description of molecular and supramolecular bonding in a unified conceptual framework. In this sense, supramolecular aggregation under ambient thermal conditions should be considered a true chemical phenomenon. 

Most of the antiparallel /3 domains have their sheets wrapped around into a cylinder, or barrel, shape. None of the antiparallel barrels has as symmetrical or as continuously hydrogen-bonded a cylindrical sheet as the singly wound parallel fi barrels of triosephos-phate isomerase and pyruvate kinase dl however, antiparallel barrels are very much more common. Because of gaps in the hydrogenbonding, some of these structures have been described as two /3 sheets facing each other (e.g., Schiffer et al., 1973 Blake et al., 1978 Harrison et al., 1978). Our reasons for treating them all as barrels are that the gap positions are sometimes different in domains that are probably related, and that the barrel description yields very much simpler and more unified topologies. 

A related objective of this book is to unify the treatment of solid particles, liquid drops, and gas bubbles. There are important similarities, as well as significant differences, that have often been overlooked among these three types of particle. Workers concerned with liquid drops, for example, sometimes fail to recognize the relevance of parallel work on bubbles or solid particles. Confusion has been created by differing—sometimes conflicting—nomenclature. To a large extent, we have written the book because we wished it had already existed. 

Therefore, the empirical and theoretical evidence for the superiority of an 0(3) invariant over a U(l) invariant electrodynamics is overwhelming. It is clear that the process of development can be continued, for example, in quantum electrodynamics, electroweak theory, and grand unified theory, and the ontology of these developments can also be studied in parallel. 

IT-Security includes the following processes, which are related to the corresponding phases of the IEC Life Cycle Model (in [nn], Figure 3). Following this concept, the complete security management life cycle can be considered and integrated in a holistic, unified model of parallel, equivalent activities ... 

There are two parallel channels of energy quenching by either contact formation of exciplex with subsequent dissociation to RIP [Eq. (3.604), scheme I] or by remote formation of RIP with subsequent association (transformation) to exciplex [Eq. (3.604), scheme II]. The last one was considered first by means of unified theory [29], which was extended later to account for both schemes together [30]. Since the results were comprehensively reviewed in Chapter IX of Ref. 32, there is no need to do the same here. It should only be noted that the theory of scheme I has been generalized to account exciplex formation, not only by encounters of excited reactants but also by a straightforward light excitation of existing complexes of the same particles [31]. 

We now turn to the case of block copolymers. Early work by Shull [20] considered a lamellar arrangement parallel to the walls only. From such calculations, one obtains a unified treatment of both the weak and the strong segregation limit within mean field theory, and a detailed description of the order parameter profiles across the thin film emerges. 

So what of Swallin s shuffling and his idea of microjumps There is no need to abandon microjumping even though the heat of activation for all nonassociated, noncomplexed liquids follows the law E = 3.74/ P p, suggesting a unified mechanism of transport for metals, organic liquids, and molten salts. Perhaps in some liquids two kinds of steps contribute to transport in parallel. 

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