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Localized range

Given any arbitrary local range-r one-dimensional CA rule, (/> 0,1,... fe —... [Pg.225]

The adjustable parameter is made nonzero for only a limited range of atom pairs such as bonded and geminal O-O, and vicinal N-H, interactions so as to correct systematic deficiencies exhibited for interatomic distances in a localized range. T , (fkk.) is a complicated function that is therefore only computed under well-defined circumstances and will not be discussed further here27. [Pg.33]

As an example, Fig. 5.6 depicts a typical diffraction spectrum. It is evident that long range order does not exist in our chalcogenide samples. However, the broad difffactrogram peak centered at 20 = 42.5° has the characteristic of a nanodivided ruthenium metal [22]. This points out that the active center in this chalcogenide materials is essentially of metallic nature. The material, either in powder or colloidal form, was analyzed by the EXAFS technique [11]. The local range order of this technique allowed for some structural determination of our samples. Thus, for example, the co-ordination distances for ruthenium-selenium and ruthenium-ruthenium are R(RU-se) = 2.43 A y R(ru.rU) = 2.64 A, respectively. The metal-metal co-ordination distance is of the same order of magnitude as that of well known cluster based materials such as the Chevrel phase [35, 37], cf. Fig. 5.2b. This testifies that the used chemical route leads to the formation of cluster-like materials. [Pg.141]

Collectively, the atomic and the functional group ranges form the localized range, whereas the molecular density range is the global density range. [Pg.179]

Within- and among-population mtDNA sequence divergence has been estimated using restriction site data. Avise et al. (1987) sxumnarized studies of vertebrate mtDNA. Most included an average of 6 or fewer individuals per locality (range 1.5 - 21). The number of localities... [Pg.43]

Here, the data of Fig. 18 can be used to evaluate the beginning of the local range in q the effect is around 1 %atq = 3 10 A and5%atq = 7 10 A . This latter limit will be assumed at the upper boundary of the subentangled regime. Its influence on the former conclusions is ... [Pg.96]

Krukau AV, Scuseria GE, Perdew JP, Savin A (2008) Hybrid functionals with local range... [Pg.34]

The effect of gas delay time had a distinct bound. The choice of gas delay time range is more crucial. On the other hand, the influence was not significant when the delay time varied in a local range. [Pg.908]

In order to realise such a high dynamic range, either a local compensation coil at the location of the SQUID [9] or a gradiometric excitation coil like the double-D coil have to be used. In case of the electronic compensation, the excitation field and the response of the conducting sample is compensated by a phase shifted current in an additional coil situated close to the SQUID-sensor. Due to the small size of this compensation coil (in our case, the diameter of the coil is about 1 mm), the test object is not affected by it. [Pg.259]

To evaluate the image quality of the processing system, one can determine classical parameters like spatial resolution, contrast resolution, dynamic range, local and global distortion. Guidelines for film digitization procedures have been well described now. Furthermore, a physical standard film for both equipment assessment and digitization calibration and control, will be available in a next future (4). [Pg.501]

Projection radiography is widely used for pipe inspection and corrosion monitoring. Film digitisation allows a direct access to the local density variations by computer software. Following to a calibration step an interactive estimation of local wall thickness change based on the obtained density variation is possible. The theoretical model is discussed, the limitations of the application range are shown and examples of the practical use are given. The accuracy of this method is compared to results from wall thickness measurements with ultrasonic devices. [Pg.561]

With the use of Cs source tomographic layer-by-layer study of nuclear fuel within a range of 5 to 12 g/sm is conducted. In the specialized tomograph the initial information measurement time is 5-30 min, the tomograms restoration time is 4-10 min. The sensitivity to a various density is about 5% when detecting local areas with a diameter exceeding 0.5mm. [Pg.600]

Electromagnetic earthquake forerunners show themselves like the electromagnetic phenomena, including electromagnetic emission (EME) in a radio frequency range. This emission caused by collective exiting of the set of local mechano-electrical transformers (MET). The excitation mechanism inside the crust is determined by the fact that elastic tension ranges up to the threshold level within the source area. [Pg.914]

Bikerman [179] has argued that the Kelvin equation should not apply to crystals, that is, in terms of increased vapor pressure or solubility of small crystals. The reasoning is that perfect crystals of whatever size will consist of plane facets whose radius of curvature is therefore infinite. On a molecular scale, it is argued that local condensation-evaporation equilibrium on a crystal plane should not be affected by the extent of the plane, that is, the crystal size, since molecular forces are short range. This conclusion is contrary to that in Section VII-2C. Discuss the situation. The derivation of the Kelvin equation in Ref. 180 is helpful. [Pg.285]

The coefficient of friction between two unlubricated solids is generally in the range of 0.5-1.0, and it has therefore been a matter of considerable interest that very low values, around 0.03, pertain to objects sliding on ice or snow. The first explanation, proposed by Reynolds in 1901, was that the local pressure caused melting, so that a thin film of water was present. Qualitatively, this explanation is supported by the observation that the coefficient of friction rises rapidly as the remperarure falls, especially below about -10°C, if the sliding speed is small. Moreover, there is little doubt that formation of a water film is actually involved [3,4]. [Pg.438]

The state of an adsorbate is often described as mobile or localized, usually in connection with adsorption models and analyses of adsorption entropies (see Section XVII-3C). A more direct criterion is, in analogy to that of the fluidity of a bulk phase, the degree of mobility as reflected by the surface diffusion coefficient. This may be estimated from the dielectric relaxation time Resing [115] gives values of the diffusion coefficient for adsorbed water ranging from near bulk liquids values (lO cm /sec) to as low as 10 cm /sec. [Pg.589]

Thus the entropy of localized adsorption can range widely, depending on whether the site is viewed as equivalent to a strong adsorption bond of negligible entropy or as a potential box plus a weak bond (see Ref. 12). In addition, estimates of AS ds should include possible surface vibrational contributions in the case of mobile adsorption, and all calculations are faced with possible contributions from a loss in rotational entropy on adsorption as well as from change in the adsorbent structure following adsorption (see Section XVI-4B). These uncertainties make it virtually impossible to affirm what the state of an adsorbed film is from entropy measurements alone for this, additional independent information about surface mobility and vibrational surface states is needed. (However, see Ref. 15 for a somewhat more optimistic conclusion.)... [Pg.613]

As a result of long-range fluctuations, the local density will vary with position in the classical Landan-Ginzburg theory of fluctuations this introdnces a gradient tenn. A Ginzburg number N is defined (for a... [Pg.653]

The van der Waals attraction arises from tlie interaction between instantaneous charge fluctuations m the molecule and surface. The molecule interacts with the surface as a whole. In contrast the repulsive forces are more short-range, localized to just a few surface atoms. The repulsion is, therefore, not homogeneous but depends on the point of impact in the surface plane, that is, the surface is corrugated. [Pg.901]

This equation may be solved by the same methods as used with the nonreactive coupled-channel equations (discussed later in section A3.11.4.2). Flowever, because F(p, p) changes rapidly with p, it is desirable to periodically change the expansion basis set ip. To do this we divide the range of p to be integrated into sectors and within each sector choose a (usually the midpoint) to define local eigenfimctions. The coiipled-chaimel equations just given then apply withm each sector, but at sector boundaries we change basis sets. Let y and 2 be the associated with adjacent sectors. Then, at the sector boundary p we require... [Pg.976]

If we consider the optical response of a molecular monolayer of increasing surface density, the fomi of equation B 1.5.43 is justified in the limit of relatively low density where local-field interactions between the adsorbed species may be neglected. It is difficult to produce any rule for the range of validity of this approximation, as it depends strongly on the system under study, as well as on the desired level of accuracy for the measurement. The relevant corrections, which may be viewed as analogous to the Clausius-Mossotti corrections in linear optics, have been the... [Pg.1288]


See other pages where Localized range is mentioned: [Pg.238]    [Pg.106]    [Pg.40]    [Pg.47]    [Pg.337]    [Pg.418]    [Pg.68]    [Pg.355]    [Pg.114]    [Pg.157]    [Pg.332]    [Pg.784]    [Pg.792]    [Pg.197]    [Pg.229]    [Pg.238]    [Pg.106]    [Pg.40]    [Pg.47]    [Pg.337]    [Pg.418]    [Pg.68]    [Pg.355]    [Pg.114]    [Pg.157]    [Pg.332]    [Pg.784]    [Pg.792]    [Pg.197]    [Pg.229]    [Pg.11]    [Pg.241]    [Pg.233]    [Pg.524]    [Pg.53]    [Pg.130]    [Pg.686]    [Pg.687]    [Pg.738]    [Pg.1071]    [Pg.1106]    [Pg.1586]    [Pg.1677]   
See also in sourсe #XX -- [ Pg.47 ]




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