Force curve results reinforcing

For those reasons, the force curve results are presented only to reinforce the Mw dependence aspect of the mechanical properties that can be probed with an AFM on PS films. 

In a study of the infrared spectral characteristics of human whole stimulated saliva collected from individuals classified as to dental caries status, a correlation was found between absorption bands at 1389 and 833 cm", and the caries status of 398 airmen of the U.S. Air Force (Harris et al., 1959). Also flow rate and these infrared bands were directly correlated. In order to reinforce such presumptive evidence that the characteristics of the infrared curves might be an indicator of caries-susceptibility status, a series of infrared studies of the saliva of normally caries-resistant rodents and other animals was done and the results were compared with the composite curves of previous human caries-resistant and caries-susceptible groups (Harris et ai, 1960). Included in the study were pilocarpine-stimulated salivary specimens of the rat, hamster, rabbit, cat, dog, and monkey. The spectra for all experimental animals within the same species were identical. The spectra of the saliva among the... 

Intermolecular repulsion forces will define a hard-sphere diameter for the molecules allowing the calculation and/or measurement of the density fluctuation as one moves away from the surface. As shown in Figure 4.86, the result is a damped density curve (density distribution versus distance in molecular diameters from the surface). For a liquid between two surfaces at short separation distances, the two effects will overlap producing an interference pattern as illustrated in Figure 4.9. When the distance of separation is some integral multiple of the hard sphere diameter, nAhs, reinforcement occurs producing a local free energy minimum. For separations that correspond to fractional... 

The curves shown in Fig. 5-5 were developed for glass-reinforced polycarbonate, using the power screw equation which relates applied torque to the resulting force created by the screw. This information is useful when calculating stresses induced by threaded fasteners with nonstandard head sizes. 

---