Intensity contour map

Fig. 13a and b. Intensity contour maps around the 5.9-nm and 5.1-nm actin layer lines (indicated by arrows) a resting state b contracting state. Z is the reciprocal-space axial coordinate from the equator. M5 to M9 are myosin meridional reflections indexed to the fifth to ninth orders of a 42.9-nm repeat, (c) intensity profiles (in arbitrary units) of the 5.9- and 5.1-nm actin reflections. Dashed curves, resting state solid curves, contracting state. Intensity distributions were measured by scanning the intensity data perpendicular to the layer lines at intervals of 0.4 mm. The area of the peak above the background was adopted as an integrated intensity and plotted as a function of the reciprocal coordinate (R) from the meridian... 

Hall and Pass used a rather different method (8), whereby the intensity was measured on a 25pm lattice of points covering the entire area of a reflection. From this an intensity contour map of the reflection was created and its total intensity determined by measuring the area within each contour line, multiplying this area by the intensity difference between adjacent contours, and summing these products for all contour areas within the boundary of the reflection. The measured intensity was corrected by application of the value at the centre of the reflection of the Lorentz-polarization factor. 

Figure 12.21 (a) In situ HERFD XANES intensity contour map of a Pt/AljOj catalyst... 

Figure 6.19 presents a small-angle X-ray diffraction intensity contour map and the simultaneously recorded DSC curve for a fully hydrated dipalmitoylphosphatidylcholine [1]. Based upon the simultaneously recorded data, the following phases can be identified in this system as a function of temperature T< 308 K, L phase 308 K < T< 314 K, P phase T< 314 K, L phase. This... 

A) Small-angle X-ray diffraction intensity contour map of first-order and second-order lamellar reflections observed on heating fully hydrated dipahnitoylphosphatidycholine. (B)... 

Fig. 39. X-ray intensity contour maps of the plane (hOhl) near the (lOTl) lattice point (a) low temperature (b) room temperature. The dotted lines ate fits to a domain model as described in the text.

Figure Bll.1.1 represents a 3T3 cell stained with BODIPY FL C5-ceramide (from Molecular Probes), a specific stain for the Golgi apparatus The color coding for the lifetimes is from 0 to 5 ns. The lifetime is coded in color (right upper) and this color-coded lifetime information is mapped onto the intensity surface (upper left) to give the combined lifetime/intensity plot (lower right). The final combined image shows intensity contours (in white), and a lit intensity surface is employed to accentuate the information in a three-dimensional form.

Figure 7.8 A scattering map in reciprocal space. Equal intensity contours are shown schematically, and the Ewald sphere is represented as a plane near reciprocal lattice points 0 and h. The dynamical diffraction from the specimen is displaced slightly from the relp and from the centre of the diffuse scatter by the refractive index effect...

Fig. 3. (Top) A two-dimensional nuclear magnetic resonance spectrum of a sugar (Bottom) conventional NMR spectrum of same sugar. Tile two-dimensional spectrum also can be plotted as a contour map with intensities denoted by color. (JEOL Inc)...

Figure 3. Contour map of one quadrant of the KBr-amylose diffraction film. The highest background intensity contour is at upper left. Note the (1,0,4) maximum, although weak is in medium background, but the (3,2,2) is weak in low...

Once the characteristic absorbance frequencies for the components have been determined, one can view the image data with contour plots (intensity versus spatial position). A contour plot for a given frequency is a representation of the data in three dimensions spectral intensity (shown by colors), and plotted in the x- and y-dimensions. From the contour map, one can determine initially whether the acquired image is homogeneous or heterogeneous. If the image is homogenous and is expected... 

The results may be displayed either as an isometric 3-D plot of intensity vs temperature and wavelength or as a contour map. Individual interferograms can also be summed to display a conventional 2-D glow-curve over the full temperature range. 

The functions, and ij/, are called the synchronous and asynchronous 2D intensity correlation functions, respectively. These functions represent the overall similarity and dissimilarity, respectively, between two intensity variations at vi and V2 caused by changing the magnitude of the perturbation. The results are plotted on two orthogonal axes (vi and V2) with the spectral intensity plotted on the third axis normal to the 2D spectral plane. Figures 3-31A and 3-3 IB illustrate schematic contour maps of a synchronous and an asynchronous 2D correlation spectrum, respectively, where + and - signs indicate the directions of the contour peaks relative to the 2D spectral plane. 

Figure 13 A contour map showing the intensity of D2 scattering from a clean Ni(l 11) surface at 500 K. The incident beam was 4° off the 71108 azimuth and —20° from the normal. The incidence plane is indicated along with the theoretical locations of the diffraction maxima. On an arbitrary scale, the specular intensity is 15, the (1,-1) and (-1,-1) are 3.6 and the (1,1) and (0,1) are 3.4. The in-plane (-1,-2) is down at 2.6.

This function is similar to the electron density function given earlier. Here, P(uvw) is the value of the Patterson function at Patterson coordinates u, v, w these are the traditional coordinate symbols (instead of x, y, z) used for squared ( F jt,p) space. All other symbols have their usual meaning. The Patterson function is a Fourier summation using the intensities as coefficients and setting all equal to 0. The resulting contoured map will have peaks corresponding to vector differences between all atoms in the structure. A vector between an atom and itself is a zero vector therefore, the Patterson functions always have a very large peak at u,v,w = 0, 0, 0. 

Fig. 8. The upper curve gives the contour map of the intensity of ArD+ for the reaction Ar + (D2, D)ArD+. The lower curve gives the Gontour map of Ar+ scattered non-rcactively from D2. The circle passing through the beatn profile is the locus of elastic scattering.13...

Fig. 15. Contour maps of the intensity of C3H and C3Hj from the reaction C2H4 + C2H4.71...

Fig. 17. Contour maps of the intensity of C3H3 from the reaction C2H J + C2H4 -> C3H3 + CH3. The indicated lifetime of the complex TQ and the mean rotational period, TR, are estimated from the experiment.15...

The above examples of results on reactions proceeding by direct and persistent complex mechanisms show that if one obtains a contour map with the product ion intensity asymmetrically disposed about the +90° line one can with some certainty conclude that the reaction is proceeding by a direct mechanism. On the other hand, if one has an isotropic or symmetric distribution of the product ions one must interpret such curves with some care since such distributions may not unambiguously indicate complex formation judging from the results obtained on such reactions as the Kr+(D2, D)KrD + and H2+(H2,H)HJ. 

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