Square-triangle

This structure, according to Pearson (1972), is included within a group of structures generated by square-triangle nets of atoms. In particular the CuAl2-type structure is made up of 32 434 nets of A1 atoms at z = 0 and z = M which are oriented anti-symmetrically relative to each other the squares of these layers are centred by the Cu atoms of the nets at z A and X. 

Fig. 3. Circles, squares, triangles and crosses are the QE of supply as a function of electric field for PVK films of different thickness. The solid line is the Onsager expression for <2>0 = 0.11 and...

Plot the Points and Draw the Lines and Curves. Using a sharp, hard pencil, plot the experimental points as small dots, as accurately as possible. Draw small circles (or squares, triangles, etc.) of uniform size (2 or 3 mm) around the points in ink to give... 

Fig. 62. Correlation of the Flory-Huggins Interaction Parameter, /, for polystyrene-liquid systems at 25 °C with the relative swelling power (C) of the corresponding liquid at 23 °C as a function of the volume fraction (v) of the polymer in the system. The /-data at v = 1.0, 0.8, 0.6, 0.4, 0.2, and 0.0 are represented respectively by the symbols star, circle, square, triangle pointing upward, triangle pointing downward, and narrow oval. The /-data determined experimentally are represented by the filled symbols, whereas those obtained by interpolation or by extrapolation as noted in Fig. 61 are represented by the corresponding empty symbols...

Cell Shape square square square triangle... 

B. General Properties of Random Square-Triangle Tilings... 

Fig. 1.37 Model of enhanceosome function during transcription activation. The requirement for only a single regulator or multiple transcriptional regulators, organized in the enhanceosome, may depend on the state of chromatin. In chromatin state 1, the promotor is covered by a nucleosome and binding of three regulators (circle, square, triangle) is required to achieve effective recruitment of chromatin modification complexes and to free the promotor for binding of the RNA polymerase ho-...

Cell Shape Square Square Square Triangle... 

Figure 7.5. Compensation effect for the hy-drogenolysis reaction. The logarithm of the preexponential factor is plotted against the apparent activation energy, A , for this reaction over several transition-metal catalysts. The squares, triangles, and circles represent values for ethane, methylamine, and methyl chloride hydrogenolysis, respectively [1881.

What structure (squares, triangles, hexagons, etc.) will be established at steady state ... 

Fig. 2.3.12. The temperature dependence of the intensity (/) of light scattering from 4-methoxybenzylidene-4 -butylaniline (MBBA) in the nematic phase. The values (plotted as T/I) are normalized to unity at 286 K. The squares, triangles and circles correspond to three different experimental configurations. For one of the configurations (squares) the data were not fully corrected for the effect of the temperature dependence of the refractive indices on the variation of one of the wave-vector components, which probably explains the slight increase near the transition temperatures in this case. (After Haller and Litster. )...

Fig. 2. Relationship between percent leaf area injured and number of daily exposures (20 min each) of simulated rain on middle leaflets of first trifoliate leaves of soybean (Glycine max). Diamonds, squares, triangles, and circles represent injury after exposure to simulated rain of pH 2.7, 2.9, 3.1, and 3.4, respectively.

Figure 7.16. Time-dependence of the dynamic contact angle (filled symbols) and drop volume normalized to its original value before contact with the paper (open symbols). The amount of sizing agent in the different papers increased by a factor of three, following the order squares, triangles and circles...

Fig. 4.3 Potential prism cross section, equilateral triangles, squares, hexagons, etc. The area enclosed in a perimeter of 1 unit is 0.048 units square (triangle), 0.063 units square (square), and 0.075 units square (hexagon), respectively, where the hexagon is the most efficient...

Figure 6. Temperature dependence of 5 (see the text on its definition) determined by the fitting of our prediction to the experimental data of p, Kj, and Cp at various pressures. Open squares, triangles, and circles represent, respectively, data onp.Ax.andCpat ambient pressure. All the other symbols are data at higher pressures. The dashed line is our theoretical prediction for S. The values of S determined from the 23 sets of data of bulk liquid water are all collapsed on the master curve, which is described by the single Boltzmann factor. The figure is reproduced from Fig lb of [25]...

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