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Self hierarchy

Abstract This chapter gives an overview of the research on the self-assembly of amorphous block copolymers at different levels of hierarchy. Besides the influence of composition and topology on the morphologies of block copolymers with linear, cyclic and branched topologies blends of block copolymers with low molecular weight components, other polymers or block copolymers and nanoparticles will also be presented. [Pg.139]

Organoclay materials with higher-order organization can also be prepared by template-directed methods involving self-assembled supramolecular structures. In this approach, preformed organic architectures in the form of tubes, fibers, hollow shells, gyroids, helicoids, and so on are transferred into hybrid materials exhibiting structural hierarchy, complex form and ordered mesoporosity [47-55]. For example,... [Pg.244]

According to most theoretical analyses of the present neutrino experiment results, next-generation DBD experiments with mass sensitivities of the order of lOmeV may find the Majorana neutrino with a non-zero effective electron neutrino mass, if the neutrino is self-conjugate and the neutrino mass spectrum is of the quasi-degenerate type or it has inverted hierarchy [83], Majorana massive neutrinos are common predictions in most theoretical models, and the value of a few 10 2cV predicted for its effective mass, if reached experimentally, will test its Majorana nature. [Pg.359]

Starting from the normal mode approximation, one can introduce anharmonicity in different ways. Anharmonic perturbation theory [206] and local mode models [204] may be useful in some cases, where anharmonic effects are small or mostly diagonal. Vibrational self-consistent-field and configuration-interaction treatments [207, 208] can also be powerful and offer a hierarchy of approximation levels. Even more rigorous multidimensional treatments include variational calculations [209], diffusion quantum Monte Carlo, and time-dependent Hartree approaches [210]. [Pg.24]

During the course of the article, we will present evidence that the histones constitute part of a self-assembly system (Section IV). In the absence of DNA they retain the information to interact with each other to form a hierarchy of structures with dimensions, periodicities, and intermolecular contacts, compatible with what is known about the protein core of chromatin. This strongly suggests that histone-histone interactions have a fundamental role in chromatin structure. [Pg.2]

Albderda van Ekenstein G, Polushkin E, Nijland H, Ikkala O, ten Brinke G. Shear alignment at two length scales comb-shaped supramolecules self-organized as cylinders-within-lamellar hierarchy. Macromolecules 2003 36 3684-3688. [Pg.94]

Hence the notion of a hierarchy of preferences depends, if I am right, on the notion of an asymmetric distribution of the capacity to have second-order intentions. If my day-time self and my night-time self were both able to behave strategically toward the other, we could not decide which of them to use as a bench-mark. There would be two sets of meta-rankings. However, once we have firmly identified the person with one of the selves, on the basis of that seifs unique capacity to form higher-order intentions about the other, we can use the preferences of that self to construct the meta-ranking of the person. [Pg.13]

To solve the problem, one has to consider the infinite (due to (5.2.7)) hierarchy of the non-linear equations (5.2.6). The set of correlation functions is complete and equation (5.2.6) is exact. The quantities wm in (5.2.7) are no longer the effective trapping probabilities, since it is not self-evident that the integral term there is positively defined. [Pg.272]

Steinbeig, M.S. (1970). Does differential adhesion govern self-assembly processes in histogenesis Equilibrium configurations and the emergence of a hierarchy among populations of embryonic cells. J. Exp. Zool. 173,395-434. [Pg.119]

Self-assembly can comprise a number of hierarchical levels, j. The lifetime of each self-assembled stage (x) is inversely proportional to its position in the hierarchy, thus the highest stages are much longer lived than the stages below them, i.e. Xj Xj.j. [Pg.733]

In a recent survey [19] it was noted that a realistic model for catalytic oxidation reactions must include equations describing the evolution of at least two concentrations of surface substances and account for the slow variation in the properties of the catalyst surface (e.g. oxidation-reduction). For the synchronization of the dynamic behaviour for various surface domains, it is necessary to take into consideration changes in the concentrations of gas-phase substances and the temperature of the catalyst surface. It is evident that, in the hierarchy of modelling levels, such models must be constructed and tested immediately after kinetic models. On the one hand, the appearance of such models is associated with the experimental data on self-oscillations in reactors with noticeable concentration variations of the initial substances and products (e.g. ref. 74) on the other hand, there was a gap between the comprehensively examined non-isothermal models with simple kinetics and those for the complex heterogeneous catalytic reactions... [Pg.269]


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See also in sourсe #XX -- [ Pg.265 ]




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