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Continuity component

The limitation of these instruments is that they only indicate overall corrosion rate. Their sensitivity is affected by deposition of corrosion products, mineral scales or accumulation of hydrocarbons. Corrosivity of a system can be measured only if the continuous component of the system is an electrolyte. [Pg.1312]

First we assume that the model order MD = 2 (in fact it is indeed two, but we do not need to know the exact model order). The input has an impulse component, and hence we set DC = 1. Since the input has no continuous component we give zero values in place of the (continuous) input in the DATA lines 128 - 148. Note that no observation is available at t = 0. ... [Pg.302]

Another test for the presence of quantum chaos is to investigate the power spectrum of the auto-correlation function 9 t). It is immediately obvious from (1.4.8) that the power spectrum of a bounded system is a countable sum of S functions. Since no chaos is present in (1.4.8), one may conjecture that for chaos to be present it is necessary that the power spectrum of 9 t) contains a continuous component. Other tests for quantum chaos are to compute the power spectrum of expectation values of dynamical variables, for instance the position x(t) = ip t) x ip t)). Again, a purely discrete power spectrum indicates regular time evolution of 0) whereas a continuous component indicates the presence of chaos. Obviously, a continuous component in the power spectrum is only a necessary condition for chaos. It is not sufficient since unbounded systems, for instance scattering systems, may show a continuous component without any sign of chaos in their dynamics. This state of affairs was known more than 20 years ago (Lebowitz and Penrose (1973), Hogg and Huberman (1982), Wunner (1989)). [Pg.27]

Gal-Or, B., Cullihan, H. X, and Galli, R., New thermodynamic transport theory for systems with continuous component density distributions. Chem. Eng. Sci. 30,1085 (1975). [Pg.73]

In his pioneering work, Esche [145] suggested that the appearance of continuous components in the spectrum occurs at the onset of cavitation. Akulichev and Il Ichev [148] separated the noise intensity of the fundamental frequency Pf from the total amplitude of noise Pn. They observed that the ratio Pn / P increases sharply with the input power near the cavitation threshold, and is a better criterion for the detection of cavitation than the increase of Pn alone. This was confirmed by Neppiras [16] who also studied variations in both fundamental and subharmonic signal intensities with the input power the results of which are shown in Figure 32. [Pg.49]

The dependence of the inverse of the characteristic times for water translation in 12% water-DP12 at T = 1.4Tg = 475 K (circles) shows the characteristic shape of jump-diffusion mechanism (Equation 3.2) without any contribution from a continuous diffusion mechanism. When the segmental mobility of the oligomer is increased by eliminating the torsional barriers between the monomeric residues, water mobility acquires a continuous diffusion component (circles). The data for water in the monomer at the same reduced temperature T = l-4Tg = 335 K and water content is also shown for comparison (squares). The existence of a continuous component in water diffusion in these low water content mixtures requires a continuous component in the mobility of the sugar. [Pg.54]

As will be discussed in detail in Chapter 20, the properties of multiphase materials are generally controlled mainly by the continuous component(s). The discontinuous component(s) mainly cause a shift of each property relative to this baseline. For example, if a rigid component and a much softer component are each present at 50% by volume, then their composite will have a significantly higher tensile modulus if the rigid component is continuous and the soft component is discontinuous than vice versa, while it will have a tensile modulus that is intermediate between these two extremes if the two phases are co-continuous. [Pg.690]

The stationary phase is allowed to flow down the column, while the sample and mobile phase enter continuously. Components with a relatively low solubility in the flowing liquid phase pass up the column counter-current to the sorbent flow and out at A. Components with higher solubility are retained in the moving bed and are stripped from the absorbent, as it passes B, by the mobile phase. [Pg.108]

Finally, let us mention that lumping is especially important in the presence (in the model) of continuous components (Aris, 1969 Bailey, 1972). It may be worth citing Aris (1969) here When infinitely many components are involved, a first order system may be lumped into virtually any kinetic law, and probably an approximate form of such lumping accounts for the success of some of the less enlightening empirical rate expressions. ... [Pg.77]

In the present section we should like to present a model in which the infinite dimensional state space arises in the most natural way in the case of continuous components. [Pg.78]

There are two problems leading to the notion of continuous components. At first, the number of species or chemical components may reach a huge number in such areas as oil chemistry, polymerisation or biochemistry. In these cases the number of the variables in the induced kinetic differential equation is so large that this system is difficult to treat it may prove more promising to have a continuous manifold of chemical components. [Pg.78]

Theoretical, as opposed to practical, considerations may also lead to the introduction of the notion of continuous components. Let us consider the case of the ethane molecule. This molecule can in the first approximation... [Pg.78]

The mathematical problems coming from the investigation of (4.33) are obviously more difficult than those coming from the usual discrete component model. Still, the greatest hurdle is not of pure mathematical nature it is, how to interpret and how to measure and estimate the measures p and X. This is the main obstacle delaying the breakthrough of continuous component models. [Pg.80]

Formulate a continuous component model for xylene isomerisation. (Xylene is known to have three distinct isomers ortho-, meta- and paraxylene and the transition between them is usually described by the triangle reaction, cf. Aly et al. (1965).)... [Pg.89]

State and prove existence and uniqueness theorems on the continuous component model. [Pg.89]

Herman, I. (1978). On reaction kinetics with continuous components (Thesis), Budapest. [Pg.232]

Maximum continuous component cooling water inlet temperature (°F) Total weight motor and casing, dry (lb) nominal... [Pg.69]

To describe the compliance of blends with one continuous component and one discontinuous component, equation 19 can provide a first approximation by using I lp = 0, i is = 1 1 or i 2p = 0, U2s = V2- More accurate equations can be obtained by modifying existing equations (213). If the minority poljnner 2 of the volume fraction V2 having a lower compliance D2 it) < Di (t) is dispersed in polymer 1, the compliance l>bi it) of the blend is (237)... [Pg.6278]

Both positional vectors are split into a slow and continuous component (Rg, H) and a rapid and oscillatory motion (Uo.Ui). The motions associated to these terms are successively the translation Rc(t) and the external vibration UgCO, the rotation ri(t) and the internal vibration of the proton with respect to its equilibrium position in the molecule ui(t). [Pg.91]


See other pages where Continuity component is mentioned: [Pg.909]    [Pg.84]    [Pg.301]    [Pg.301]    [Pg.127]    [Pg.117]    [Pg.210]    [Pg.2139]    [Pg.48]    [Pg.276]    [Pg.222]    [Pg.109]    [Pg.110]    [Pg.398]    [Pg.195]    [Pg.194]    [Pg.152]    [Pg.78]    [Pg.279]    [Pg.279]    [Pg.6278]    [Pg.6288]    [Pg.35]    [Pg.201]    [Pg.182]    [Pg.31]   
See also in sourсe #XX -- [ Pg.262 ]




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