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Existing experimental data

Thus, the whole complex of existing experimental data indicates that the major part of polycrystalline contacts in vacuum sintered polycrystalline oxides are provided by bridges of open type. Moreover, the vacuum sintering at moderate temperatures 300 - 350°C leads to formation of a unified pattern (see Fig. 2.4, b) which cannot be disjoint into specific microcrystals and connecting bridges [37, 40]. The structure of adsorbents obtained presents a complex intertwining of branches of various thickness. [Pg.117]

Fig. 3. An idealized representation of the supramolecular cylinder self-assembled from a single chain of the dendrimer derived from monomer 9 (R=OC12H25, n=3) in the hexagonal columnar phase, assuming one single backbone per cylinder, drawn to proportion with existing experimental data a tilted side view b top view. Reproduced with permission from references 5 a... Fig. 3. An idealized representation of the supramolecular cylinder self-assembled from a single chain of the dendrimer derived from monomer 9 (R=OC12H25, n=3) in the hexagonal columnar phase, assuming one single backbone per cylinder, drawn to proportion with existing experimental data a tilted side view b top view. Reproduced with permission from references 5 a...
As it logically follows from the considered mechanism and the existing experimental data, PANI-type conductive polymers can certainly be used to improve the characteristics of electrochemical capacitors. According to our estimations, a specific capacity of electrodes with conductive polymers could be increased by as much as to 3-5 times over that of the classical carbon electrodes. [Pg.319]

RG calculations in the EV regime have been performed by Ereed and Douglas for linear and uniform star chains [69]. The results are expected to be valid only for low functionality stars and, in fact, the comparison with existing experimental data is only reasonable for small number of arms, while the theoretical results for f 6 clearly exceed the experimental data [49]. [Pg.55]

The feed and melting sections upstream of the metering section are set using experience and existing experimental data. For example, if the base case worked well with a compression ratio and compression rate of 3.0 and 0.0035, respectively, then the target screw would be designed with the same upstream specifications. The compression ratio and compression rate are as follows ... [Pg.392]

It is of interest here to recall the method suggested by Tardy and Garrels (1974) for the empirical estimate of the Gibbs free energy of layer sihcates. This method, which is even simpler than the combinatory procedures mentioned in section 3.6, has an accuracy comparable to the discrepancy of existing experimental data. [Pg.339]

More recently, Ganguly and Saxena (1987) reconsidered equation 5.243 in the light of all existing experimental data, proposing... [Pg.387]

Krogh E. X (1988). The garnet-clinopyroxene Fe-Mg geothermometer—a reinterpretation of existing experimental data. Contrib. Mineral Petrol, 99 44 8. [Pg.840]

The initial step in the alternative hydrolysis mechanism is protonation of the ring 0i by Glu 35 (Scheme I). Cleavage of the endocyclic C1-O5 bond forms the acyclic oxocarbonium ion intermediate, which is stabilized by Asp 52. Attack by water, cleavage of the C1-O4 bond, and ring closure then lead to the observed products. Existing experimental data on lysozyme hydrolysis are consistent with Scheme I (see references in Post and Karplus ( )). Moreover, distortion of the ring in site D is not required and the antiperiplanar orientation of an exocyclic O4 lone pair orbital relative to the cleaved C1-O5 bond found in the simulation (see section on "Enhancement of a Substrate Conformation Optimum for Catalysis") is in accord with stereoelectronic requirements (1 ). ... [Pg.380]

Bischoff and Levenspiel (B14) present some calculations using existing experimental data to check the above predictions about the radial coefficients. For turbulent flow in empty tubes, the data of Lynn et al. (L20) were numerically averaged across the tube, and fair agreement found with the data of Fig. 12. The same was done for the packed-bed data of Dorweiler and Fahien (D20) using velocity profile data of Schwartz and Smith (Sll), and then comparing with Fig. 11. Unfortunately, the scatter in the data precluded an accurate check of the predictions. In order to prove the relationships conclusively, more precise experimental work would be needed. Probably the best type of system for this would be one in laminar flow, since the radial and axial coefficients for the general dispersion model are definitely known each is the molecular diffusivity. [Pg.139]

In conclusion, one cannot but state, that the present-day knowledge of the mechanism of the low-temperature relaxation of polyethylene remains limited and qualitative, even though theoreticians have mainly studied this kind of molecular motion. The low-temperature relaxations of the other polymers without side chains are ascribed to analogous types of motion because the existing experimental data do not allow a better founded interpretation. [Pg.133]

Some of the data of Hyder et al. (1986) for positron and electron impact on argon gas at 100 eV and 200 eV are shown in Figures 3.16(a)-(d). The data were independently normalized, at 90° for both projectiles, to the existing experimental data of Srivastava et al. (1981) and DuBois and Rudd (1975) for electrons and to the theoretical results of McEachran... [Pg.144]

Fig. 5. Shell model predictions of Sg distributions of lO Sr decay (middle part) involving different odd-particle Nilsson states near the Fermi surface (left part). In the right part, the corresponding model-T1/2 and Pn are compared to existing experimental data. Fig. 5. Shell model predictions of Sg distributions of lO Sr decay (middle part) involving different odd-particle Nilsson states near the Fermi surface (left part). In the right part, the corresponding model-T1/2 and Pn are compared to existing experimental data.
To reduce the number of unknown parameters of the model, it was assumed [203] that the dependence (Jmm( h) can be determined from existing experimental data [200,212]. Fig. 8.13 compares the shear modulus for two limiting states of the membrane matrix equilibrium (rj) and nonequilibrium (77 ). The model proposed qualitatively agrees with few reliable experimental data on the effect of dissolved hydrogen on the mechanical modules. It correctly predicts the decrease in both Young s modulus and sheer modulus during the saturation of the metal with hydrogen in a wide... [Pg.424]

The radical path is most consistent with the existing experimental data. A correlation of half-wave potentials with Taft polar (a ) and steric (Es) constants 478)indicates that a parallel orientation of the C-X dipole with regard to the electrode suiface is most favourable for an electron transfer to the antibonding o orbital of the C-X bond. Thereby a radical anion 162) is formed 471 which rapidly dissociates to halide ion and radical. The more facile reduction of exo-2-... [Pg.132]

The simplest models are applicable to the treatment of existing experimental data, while for industrial needs the imitation of nonsteady-state or/and random fluxes is desirable. The author recommends the analysis of the applicability of thermodynamic models of microporous material formation to complexes of experimental data (adsorption-desorption, adhesion, mechanical stability and percolation characteristics). [Pg.79]

This program will create a hierarchy of data bases to represent the critical combustion phenomena which have been observed to control combustor operation. These elements will be developed into a base of information which may be used to design and evaluate the thermal efficiency and pollutant output of burners in combination with furnaces and boilers. Existing experimental data and new data to fill existing gaps will be factored into models so that a more complete understanding of combustor operation will result. [Pg.27]


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See also in sourсe #XX -- [ Pg.392 ]




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