Node-centered

Then, all the model vectors or a subset of them belonging to the nodes centered around node c = c(x) are updated as... 

Figure 5.8. The conduction system of the heart, a Anatomy, b Electrical rhythm in the sinoatrial node (top), atrioventricular node (center), and the heart muscle (bottom). The dotted line inb (center) represents the own rhythm of the AV node that normally gets overridden by the faster sinoatrial rhythm (solid line).

Johnson and Feke [7] effectively demonstrated that latex spheres migrate to the nodes (center of the cell) and Hawkes and co-workers [8] showed that yeast cells migrate to the antinodes (walls of the cell). These authors used a method similar to SPLITT, which is another technique closely related to FFF, also originally developed by Giddings [9]. Semyonov and Maslow [10] demonstrated that acoustic fields in a FFF channel af-... 

FIGURE 6.1 Finite volume grid, nodes centered in control volumes (left) and feces centered between... 

FIGURE 6.5 Node-centered arrangement of variables in the mesh. 

Model Eq. (6.76) can be discretized in space using a central finite difference scheme of the second order, for a node-centered mesh, as shown in Figure 6.5, as... 

In finite volume, cell-centered, node-centered, and staggered arrangements are frequently used, as shown in Figures 6.5,6.6, and 6.7. Each of these arrangements has its own advantages and disadvantages, which are well discussed in the literature. 

The tendency seems to be to use the collocated arrangement (ceU centered and node-centered) of the flow variables in the mesh, due to the decrease of computational memory, especially for three-dimensional flow situations. Besides, it seems to be more consistent to evaluate all unknowns in the same control volume. 

These results are in agreement with the suggestion that tissues vary widely in their ability to absorb that glucose which is abundant in the blood and in the intercellular spaces. Thus in the favorable conditions of tissue culture the rate of glucose uptake by mammalian epidermis is normally low, whereas in the unfavorable conditions of starvation the rate of glucose uptake by embryonic tissues, tumors, and certain adult tissues such as lymph node centers is normally high. 

Equations for several methods are given here, as taken from the book by Finlayson (Ref. 107). If the convective term is treated with a centered difference expression, the solution exhibits oscillations from node to node, and these only go away if a very fine grid is used. The... 

Data may be located at the center, face, edge, or node of the element as shown in Fig. 9.3. All variables are typically element-centered except for the velocity. The velocity is typically positioned on the element face, or node. If the velocity is positioned on the side, then the direction is commonly assumed to be normal to the face. 

The components connected between the emitter-follower and the currentsensing filter capacitor can be thought of as a resistor divider. An additional 0.17 V needs to appear at pin 7 (through a 1K resistor) so the amount of current that must be contributed to that node is 0.17 V/1K which is 170 pA. The capacitive coupling of the PNP to pin 7 essentially centers the oscillator waveform upon the current ramp. So,... 

Let m be the maximum number of nodes of a branch which originates in the center of a centric tree with n vertices. In other words, m is the integer which satisfies the double inequality... 

We consider free centric C-H trees with n vertices of degree 4, that is, with a total of 3 + 2 points [Sec. 36(a)]. Some branch with V vertices of degree 4 has a total of 3v + 1 nodes [Sec. 36(a)]. Thus, we have for a branch originating in the center... 

The changes of lateral force F in forward and backward motions follow the curve 1 and 2, respectively. It can be observed that there is one saddle-node bifurcation for the repulsive pinning center, but two bifurcations for the attractive piiming center. This suggests that the interfacial instability results from different mechanisms. On one hand, the asperity suddenly looses contact as it slides over a repulsive pinning center, but in the attractive case, on the other hand, the... 

The value of y at the center of the pattern is the arithmetic mean of the values of y at the remaining four nodes of the pattern. This formula gives a difference analog of the formula for the mean value of a harmonic function. 

If the position of sample application and the point of entry of the mobile phase are at the center of the plate and the flow of mobile phase is towards the periphery of the plate, then this node of development is called circular chromatography [6,110]. Samples can be injected into the mobile phase, in which case they will be separated as a series of concentric rings. If the samples are applied as a cluster of spots in a radial pattern around the solvent entry position, after development, spots near the origin remain symmetrical and compact trtiile those near the solvent front are compressed in the direction of development and elongated at right angles to this direction. Figure 7.10(A). 

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