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Universal relationship

We note that other systems not resembling the simple diatomic molecules considered here may follow a different relationship [86]. There may be other classes of reactions, dehydrogenation or —C bond breaking that may follow other similar relationships and thus form another universality class. We also note that there are exceptions to the relations, most notably for H2 dissociation on near-surface alloys [87]. These deviations from the rules are still describable within the d band model, though [87]. [Pg.286]


Taking into consideration the above, it is easy to assume that the stationary value of coverage of chemisorbed radicals on the surface of a film under these conditions is insignificant and is subject to change in direct proportion to the stationary concentration of free radicals in the vessel volume, i.e. may be expressed in this particular case by the following universal relationship ... [Pg.205]

Dorothy Nelkin Current industry/university relationships developed in the United States following 1980 legislation. One problem is that universities have lost their ability to stand back and be critical. And of course, conflicts of interest are inevitable. [Pg.321]

The lack of a clear, universal relationship is consistent with data compiled by Jones and Sasser (1995), who found high variance in... [Pg.194]

Based on a plot of Re/(C), showing the universal relationship between the annulus geometry and the Reynolds-number-friction-factor product, explain the results in physical terms. [Pg.202]

The theory of pressure-drop control has been outlined and the approximate relationship between the pressure-drop constant and the reject ratio are presented in Fig. 6. However, these are not considered to be universal relationships because a particular field s fundamental crude characteristics will affect the pressure-drop relationship. [Pg.230]

Despite the strong relationship between sulfate concentrations and diffusive fluxes, there is no universal relationship between lake sulfate concentrations and concentrations of S in sediments (Figure 1A cf. 24, 26). Concentrations of S in sediments are the net result of inputs from seston, diffusive inputs, recycling to the water, and dilution by other materials. Mathematically this quantity may be expressed as... [Pg.348]

The similarity theory and an exact mathematical theory of the course of the reversible reaction during cooling of the explosion products are set forth. A universal relationship between the ratio of the yield to the equilibrium... [Pg.401]

H. Zhang, H. Sato, Universal Relationship Between Tc and the Hole Content in p-Type Cuprate Superconductors, Phys. Rev. Lett. 70 (1993) 1697. [Pg.118]

WDo is the weight (in g/1) of macromonomer in the reactants, NA is Avogadro s number, and MD is the molecular weight of the macromonomer. From Eqs. (19)-(21),one can obtain a universal relationship between the particle radius and the extent of polymerization for sterically stabilized particles ... [Pg.164]

A crucial question is the following "is the index Q really the key parameter for the full MMD " Or, in other words does a sufficiently universal relationship exist between Q(=MW/Mn) and the other important ratios Mz/Mw and Mz+i/Mz ... [Pg.22]

To derive an expression that relates the mobility to field and temperature, it is necessary that the dependence of / on o/kT and be known. Figure 11 shows simulation results for / versus (c/kT)2 for different values of . A series of parallel straight lines is recovered. Combining these results with Eq. (6) yields a universal relationship relating the mobility to o/kT and as (Borsenberger et al., 1991)... [Pg.305]

An extremely important result is that the modulus/draw ratio relationship for the high molecular weight samples drawn at high temperature is approximately coincident with the universal relationship established for drawing at 75 C, and again indepen-... [Pg.19]

At Air Products we do work at national laboratories. We also work with other companies, both large companies, in the case of Chemical Industry Fnvironmental Technology Projects—a limited liability company that we formed with DuPont, Akzo Nobel—and with a lot of Small Business Innovation Research-type companies that bring a lot to the table from a feasibility standpoint in terms of new ideas. But in the remainder of this paper, I focus on the industry-university relationships and partnerships. [Pg.51]

These models address specific cases related to work done on experimental materials. A broad discussion of the mechanisms of reinforcement can be found in the specialized monograph by one of the experts in the field.There has been a concerted effort to analyze materials in many different ways and we have tried to present much of this work in this chapter. Many successful attempts have been made to develop universal relationships which explain the reasons for reinforcement and material behavior under external stresses. [Pg.389]

Cohen, HJ Stanford University Relationship of the synthesis and secretion of an extracellular selenium dependent glutathione peroxidase to changes in renal function CRISP 2001... [Pg.217]

B. I. Stepanov s Universal Relationship Between Absorption and Fluorescence... [Pg.53]

On the basis of general thermodynamical considerations, without any regard for the specific feature of a particular molecule, the universal relationship between the spectra of absorption and fluorescence can be expressed as... [Pg.65]

These laws are extremely helpful in luminescence analysis, especially in interpreting the spectra and in establishing the nature of energy levels of molecules. If either the mirror image or the universal relationship is strictly satisfied, then the shape of one of the spectra (absorption or fluorescene) can be determined from the shape of the other. The mirror image shows that the vibrational systems of the electron levels of S0- and Srstates have identical structures and can be used to evaluate their relative populations and relative probabilities of absorptive and radiative transitions as well as to determine the frequency of pure electron transitions. [Pg.65]


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See also in sourсe #XX -- [ Pg.285 ]




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