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Accumulation point

Pore-water profiles are frequently interpreted according to this concept. For example, White et ah (35) described a conceptual model of biogeo-chemical processes of sediments in an acidic lake (cf. Figure 4). They discussed the numbered points in Figure 4 as follows Diffusion of dissolved oxygen across the sediment-water interface leads to oxidation of ferrous iron and to an enrichment of ferric oxide (point 1). Bacterial reductive dissolution of the ferric oxides in the deeper zones releases ferrous iron (point 2). The decrease in sulfate concentration stems from sulfate reduction, which produces H2S to react with ferrous iron to form mostly pyrite in the zone below the ferric oxide accumulation (point 3). [Pg.379]

Specifically, it has been shown that the successive bifurcation points X at which the solution switches from period 2 " to period 2k have an accumulation point X and obey the asymptotic law... [Pg.184]

By the early 1970s, an impressive body of evidence had accumulated pointing to the identity in specificity of the receptor on a B lymphocyte and the antibody produced by that cell. Nonetheless, final proof had to await the characterization of... [Pg.54]

Furthermore, we investigate the detailed structure of the Poincare surface of section for the case of (Z, ) = (1,1). In this case, there are tori. These tori have the periodic points with period 6 in their outermost part. Here we counted the number of vertices of two triangle, namely 2x3 = 6. These periodic points is associated to one orbit in the whole phase space, which is an antisymmetric orbit in the configuration space. These periodic points have stable and unstable manifolds. In Fig. 8a, we depict the stable manifolds of the these periodic points. In Fig. 8b, we also depict the unstable manifolds by using the symmetry. The stable and unstable manifolds of these periodic points go to It should be noted that the reached points of them on 0 is the accumulation points of and Comparing Figs. 6a and 6b with Fig. 8, it is confirmed that in Figs. 6a and 6b is nearly parallel to the stable manifolds and in Fig. 6b is nearly parallel to the unstable manifolds. Therefore, it is understood that the foliated structure of tc and manifests the foliation of the stable and unstable manifolds—that is, hyperbolic structure. [Pg.326]

In both nuclear and atomic physics there are compUcations with the notion of levels . Beyond a certain excitation energy the energy levels acquire an appreciable width, i.e. the levels no longer correspond to bounded states. In atomic physics there is an additional complication with the existence of Coulomb accumulation points in the spectrum. Therefore, one has to be careful when comparing the spacings of experimental levels with the theoretical predictions. But if only bounded states or sharp resonances away from accumulation points are included in the level spacing statistics, there should be no theoretical objections. [Pg.95]

Our assertion - that almost all initial conditions (Mq, Vq), in the sense of Lebesgue measure, belong to orbits converging to a rest point in O if the set Q has no accumulation points - follows from Theorem C.8. ... [Pg.147]

Recall that xe D is an accumulation point of E if every neighborhood of X contains a point of E different from x. The hypotheses of Theorem C.8 exclude such points. In most applications, is a finite set and so this hypothesis holds. [Pg.276]

The method of ranking the sites is based on the total accumulated points for only the toxicant/genotoxicant screening tests. In this scheme site 3 would be designated as having the greatest potential hazard load, followed by sites 5,7,6, 1, 4 and 2. [Pg.110]

The first type of OIE surveillance program (denoted as "Type A" surveillance by OIE) is conducted by countries to determine prevalence of BSE and allows for detection of BSE if there is one BSE case (with a 95% confidence interval) per 100,000 adult cattle (OIE, 2006b). Coimtries implementing Type A surveillance must accumulate points based on the points system outlined in the Terrestrial Animal Health Code (OIE, 2006b). [Pg.42]

These temperatures Tr increase with n and have an accumulation point at T. ... [Pg.35]

In perturbation theory, one often considers the essential spectrum. It consists of the continuous spectrum together with the accumulation points of the eigenvalues. Whenever the potential vanishes at infinity, the essential spectrum of the Dirac equation is the set... [Pg.66]

In the case of trirhythmicity, for example, when the initial values of and y are fixed and only the initial concentration of the substrate, a, is changed, we observe (table 4.3) that the system evolves, alternatively, towards the cycle LCl or LC2. The intervals of a values corresponding to these successive choices diminish exponentially as a increases, until an accumulation point is reached, beyond which the system evolves towards the third cycle, LC3. The origin of such behaviour, also observed in a different context by Takesue Kaneko (1984), can be elucidated by means of one-dimensional maps (Decroly Goldbeter, 1985 Decroly, 1987a). A prediction of this analysis, verified by numerical simulations, is that from certain initial conditions the system can evolve to one of the stable cycles after passing, successively, in a transient manner, by each of the two unstable cycles. [Pg.131]

Not necessarily in a set, its point of accumulation has in its each neighborhood, at least one non-identical point from the set. A closed set contains all of its accumulation points. [Pg.278]

Industrial Vaseline Seat support, accumulator points Kg Suitable ... [Pg.419]

Evidence is accumulating pointing to an important role of GABA (Figure 1) in the central nervous system and this raises the question, among other, of the preferred... [Pg.66]

This is estimated to give 1-2 for the parameter values at the accumulation point of the bifurcations. Thus, the value of the Feigenbaum constant 5, in particular, should differ from the standard value 4.669.... ... [Pg.137]

Since r(U/) is closed, the sequence s(0 ) has an accumulation point 14= with f( ) = 0, a result contradicting the uniqueness of the equilibrium state. Therefore, 0>02 insures that the eigenvalues of the matrix A( (0)) have negative real parts and that (0) has index -h 1. [Pg.35]

The periodic windows in the U-sequence exist in the "chaotic regime (e.g., the regime of Section 3.2) that follows the accumulation point of the period doubling sequence [50]. There are no chaotic intervals, yet the set of bifurcation parameter values for which the behavior is chaotic has positive measure. [For a typical map probably about 85% of the measure (of the bifurcation parameter range in which the U-sequence occurs) corresponds to chaotic states, and 15% to periodic states.]... [Pg.134]


See other pages where Accumulation point is mentioned: [Pg.171]    [Pg.80]    [Pg.511]    [Pg.214]    [Pg.58]    [Pg.194]    [Pg.401]    [Pg.62]    [Pg.8]    [Pg.277]    [Pg.12]    [Pg.144]    [Pg.92]    [Pg.256]    [Pg.505]    [Pg.122]    [Pg.66]    [Pg.131]    [Pg.188]    [Pg.21]    [Pg.113]    [Pg.238]    [Pg.239]    [Pg.1516]    [Pg.572]    [Pg.207]    [Pg.135]    [Pg.483]    [Pg.133]    [Pg.134]    [Pg.136]    [Pg.138]   
See also in sourсe #XX -- [ Pg.239 ]




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