Slider positions

The main screen displays a 90 days history of the plant s risk profile in terms of CDF, release, or boiling. Movement of a slider positions the time interval that is desired. U has iwo... 

Slider Position Continuous Position Actual position 0-45 cm 10.05 cm 0.005 cm 1 sec... 

Mission Control will confirm the slider positions, power level, and coolant temperature when criticality is achieved. 

The specific reactivity change is a function of time in life, slider position and core design. For example, the equivalent slider sensitivity in a UO2 core might be less than a UN design. The TRACE transient resulted in a 48 K temperature increase. Figure 12-62 shows the reactivity contribution. Positive reactivity addition causes the reactor power and therefore reactor exit temperature to... 

The apparatus for the PFAM film coating on the slider surface is shown in Fig. 1 (a). The film thickness was measured by the TOF-SIMS as shown in Fig. 1 (b). It used a pulsed primary Ga+ ion beam to impact the surface of the PFAM film with an inset energy of 15 keV, an extractor current of 2 fj,A, beam current of 600 pA, a pulse width of 17.5 ns, and a frequency of 10 kHz, respectively. The positive TOF-SIMS spectra on the slider surface is shown in Fig. 2 where the peaks at m/z 31, 50, 69, 100, and 131 in Fig. 2(a) correspond to the positive secondary ion fragments of CF+, CFj, C2F4, and C3F5, respectively. The peak at m/z 469 apparent in Fig. 2(b) corresponds to the ion C12H7F 15O2H+ which is the characteristic ion of PFAM molecules. Therefore, the positive TOF-SIMS spectra demonstrates the existence of PFAM film [24,25]. The thickness of the PFAM film can be determined... 

Fig. 2— Positions of the positive TOF-SIMS spectra of PFAM thin film on slider, showing the most characteristic fragments (a) positive, m/z=0-150 (b) positive, m/z=460-475.

Fig. 4—The number of CF+ at different positions of the slider surface, (a) air bearing surface (ABS) of magnetic head, (b) CF numbers on different positions of ABS.

Figure 12 A magnetic head slider flying over a disk surface (slider located on the position 1.25 in. from the disk center rotating in 7600 rpm) compared with an aircraft flying in 560 mile/h over ground with a close physical spacing.

A slidewire resistor is used to balance the arms of the bridge. The circuit will be in balance whenever the value of the slidewire resistance is such that no current flows through the galvanometer. For each temperature change, there is a new value therefore, the slider must be moved to a new position to balance the circuit. 

An electronic instrument has been developed in which the DC voltage of the potentiometer, or the bridge, is converted to an AC voltage. The AC voltage is then amplified to a higher (usable) voltage that is used to drive a bi-directional motor. The bi-directional motor positions the slider on the slidewire to balance the circuit resistance. 

If a variable speed, electrically-driven centrifuge is employed, switch the current on with the resistance fully in circuit gradually move the resistance over until the necessary speed is attained. (For most work, it is neither necessary nor desirable to utilize the full speed of the centrifuge.) After 30-45 seconds, move the slider (rheostat arm) back to the original position make certain that the current is switched off. Allow 30 seconds for the centrifuge to come to rest, then raise the lid and remove the tubes. 

The safety pin, held in place by the set-back pin, is the main locking device of the fuze. It holds the slider (which contains the primer and detonator) in its retracted position and prevents premature alinement of the various elements of the powder train. 

Cell Link a reference to a cell that returns the current value of the scroll bar. This number can be used in a formula to return a result based on the position of the scroll slider button in the scroll bar. 

Here x is the position of the slider relative to the substrate, h /Zn is the substrate s period, and/o is the (zero-temperature) static friction force, whose scaling with the area of contact and normal load we just discussed. In order to incorporate the effects of thermal fluctuations on the motion of the slider, one can exploit the isomorphism to the motion of a Brownian particle moving on a substrate. A nice description of that problem is given by Risken in Chapter 11 of Ref. 64. Here we will discuss some of the aspects that we believe to be important for friction. 

---