Two cross section

Use the fluid entering from twice the cross section of one tube as stated in API RP 520 (one tube cut in half exposes two cross sections at the cut). ... 

Figure 2.44 Section of a mixing channel with a map P connecting the points of two cross-sectional planes.

Though saddles are the most commonly used support for horizontal cylindrical vessels, legs can be used for small vessels. A horizontal vessel will normally be supported at two cross-sections if more than two saddles are used the distribution of the loading is uncertain. 

Figure 15.12 Identification of blood, (a) ToF SIMS spectra in positive ion mode of hemin and haemoglobin, (b) ToF SIMS spectra in positive ion mode of two cross sections of boliw patina (samples B1 and B3) and images of the localization of haem and proteins in the sample (see colour...

At low stellar temperatures, nuclear reactions occur predominantly in the direction leading to positive values of Q, but at higher temperatures the inverse reactions become increasingly significant. In Eq. (2.15), owing to time-reversal invariance, the matrix elements are the same for both forward and reverse reactions, so that the ratio of the two cross-sections is... 

Fig. 9.15 Principle of residence time measurement of the continuous heavy phase in a countercurrent extractor. After feeding a short test signal, for example, a colored tracer, the color intensity c or Cq, respectively, is measured downstream at two cross sections ot and ft) as a function of time. The test signal curve widens downstream, owing to the various mixing phenomena.

Fig. 15.23 a Three-dimensional REMPI at 248 nm TOFMS mass spectrum of coffee roasting offgas while roasting in a steel cylinder at 200 °C. The three dimensions are mass, time and intensity, b Cross section of a at a fixed time, c Time-intensity REMPI at 248 nm TOEMS profiles of phenol (m/z 94) and 4-vinylguaiacol (m/z 150), corresponding to two cross-sections from a at fixed masses. (Adapted from [179])... 

Figure 9.42 distribution measured by LA-ICP-MS in two cross sections of two rat brains tissues with (a) control tissue compared to (b) tumor region. 

Fig. 5.1 The ellipsoid of inertia of CHzO. Each of the two cross sections shown contains two. principal axes.

The problem with equations (II.8) and (II.9) is that the definitions of the two cross sections appear to change abruptly with passage through the ionization threshold. A full discussion of this has been given by Fano and Cooper,29 and it suffices here to point out that we may define differential cross sections... 

In Fig. 13.9 we show the relative charge exchange cross sections measured for Na+ ions impinging upon Na atoms initially in the 29s and 28d states, which are nearly degenerate in energy.28 For v/ve > 0.8 the two cross sections coincide, but for smaller v the 28d cross section falls below the 29s cross section, except at the lowest velocity. Also shown are the classically scaled cross sections for H+-H Is... 

The intersecting lines of equal u values are straight and mutually parallel. In order to determine the ultrasonic sound velocity at 20°C from log vf0, ti and d °, use has in general to be made of two cross-sections for the log vf0 values adjacent to the actual log vfQ value of the oil fraction in question. This will be made clear in the following example. 

For the determination of the surface tension from the viscosity, the refractive index and the density of mineral oil fractions two cross-sections have, in general, to be used. The value of can be obtained by linear interpolation between values read from the... 

The moire of two cross sections of the hyperboloids represents the difference of two interference patterns. If the two cross sections are identical but one is displaced, the moire fringes also represent the loci of constant resolution in the displacement direction. If one focal point is fixed, and the other one is displaced, the resulting moire pattern forms a new set of hyperboloids whose foci are the two positions of the displaced focal point. This new pattern is independent of the position of the fixed focal point (a rotation of one of the original spherical wavefronts of Fig. 5 produces no moire effect). Therefore hologram interference fringes are independent of the position of the point source of the fixed reference beam. 

An alternative reaction which gives rise to C2H4 is the rearrangement of methylcarbene, MeCH. This reaction can occur in a variety of ways, and Altmann et al.217 carried out SCF calculations with a DZ basis set on two cross-sections of the potential hypersurface. The first cross-section was investigated in an MBS calculation of the variation of E with the CCH angle. 

Then, according to the statement below Eq. (106), the absorption cross section below the Ps formation threshold Eth and within the energy range of applicability of the Baz law is derivable from the knowledge of the Ps formation cross section above Elh, in spite of the fact that these two cross sections are conventionally obtained completely independently. The absorption cross section below Eth must smoothly connect to the Ps formation cross section above Elh according to a single known formula (104). 

Since these two cross sections have similar magnitudes, this would correspond to a rebound mechanism where the two molecules have to come very close together before reaction will occur. The activated complex thus lies in the exit valley and the potential energy profile has a late barrier. 

FIGU RE 8.39 A flow cell constructed for non-coaxial shealth flow. The additional vertical position inlet of this flow cell allows positioning of the sample flow in the center of the channel. The horizontal control ports are used to position the sample flow with a horizontal shift. The perspective view, top view, and two cross-section views are shown [891]. Reprinted with permission from the Royal Society of Chemistry. 

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