Triangular trough

The theoretical treatment of the dynamic Jahn-Teller effect in Li3 with the PNO-CEPA-CI ab initio method (25) has been refined in the groundstate and extended to the lowest four electronically excited states in the PNO-CI approximation(26,27). Two cross sections for the adiabatic hypersurfaces for the groundstate E and the lowest excited state, E",are shown in Figure 11. The flat groundstate surface exhibits a roughly triangular trough... 

Another geon etry that can be useful to consider is that of the conical tank. The analysis is similar to that of the triangular trough, except that the cone is axially symmetric. This makes some difference in the outcome. The geometry for the tank is shown here in Figure 5. 

As in the case of the triangular trough, the area of the liquid surface changes with the level in the tank. We know that the mass balance will lead to the same equation for the differential... 

A variation of the left-hand side theme and the issues of geometry is that of the semicylindrical trough lying on its side. The physical situation is quite similar to that of the triangular trough, except that the walls follow a circular curve. The physical system is shown in Figure 6. 

Notched trough distributors (Fig. 14-69g) consist of parallel troughs with side V notches. This distributor obeys the triangular notch equation instead of the orifice equation, which makes the flow proportional to h25 [instead of h05 in Eq. (14-163)]. This high power renders the distributor highly sensitive to out-of-levelness and... 

Saturate the samples by placing the plate with the rings in a trough of water for at least 24 hours. Water must be just enough to reach the upper edge of the rings. Transfer the plate to the pressure chamber after saturation and place it on a triangular support. 

The conic concentrator is actually a truncated cone with reflective sides. It is not an ideal concentrator, and its transmission reaches about 0.8. Its 2D version (with a triangular profile) is called a V-trough, Fig. 2.10. 

As it has been mentioned, the single streams distributor distributes the liquid phase in form of single streams or drops located in many points, equally distributed over the cross-section of the apparatus. The liquid can leave the distributor trou round orifices or trough slits or triangular orifices. 

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