Teeth diagram

Sadly, there are a few exceptions to the tidy picture presented by the Aufbau filling diagram. Copper, chromium, and palladium are notable examples (see Chapter 22 for details). Without going into teeth-grinding detail, these exceptional electron configurations arise from situations where electrons get transferred from their proper, Aufbau-filled orbitals to create half-filled or entirely filled sets of d orbitals these half- and entirely filled states cire more stable than the states produced by pure Aufbau-based filling. 

Figure 9.11 Diagram of a Bauer attrition mill. Configuration shown is used for fine milling degerminated residue. With wider spacing of interlocking teeth and no impact ring, it is used for degermination (first-break) milling.

To obtain a continuous polymerization system, transport of the viscous polymer is required. Furthermore, the initiated monomer should not polymerize upstream of the reaction zone. These requirements were met by continuously injecting TBP-initiated monomer under pressure into a heated gear pump. The monomer rapidly polymerizes between the teeth of the gear wheels, and the viscous polymer leaving the gear pump is passed into an extruder, where the volatile decomposition products are vented olf. The polymer strands are then cooled and cut into nibs. A simplified diagram of the system is shown in Figure 2. 

The standard tooth form is designed to distribute a portion of the tension force to all of the teeth engaged with chain rollers. Figure 4-28 is a force diagram that shows how the tension force is distributed. The force bearing on each tooth may be found using the following equations ... 

Figure 8-8 Schematic diagram of prototype IKA mixer with 12 rotor and 14 stator teeth. Inner diameter of rotor is 11.8 cm outer diameter of stator is 15.4 cm. The rotor tooth depth is 1 cm and the rotor-stator gap width is 0.5 mm. Approximately drawn to scale, except for gap width.

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