Flexible information display mechanism

FIGURE 3. The flexible information display mechanism in the Citizen s Helper stack. The user first requested the list of facilities in the ZIP code shown, and then the facility information, shown at the right, for the facility shown highlighted. 

Over the past two decades, DMA has proven to be a useful technique for the characterisation of biomaterials since it not only gives a quantitative assessment of material properties such as stiffness and damping, but also provides structural information. This is because the dynamic mechanical properties of materials are sensitive to aU kinds of transitions, relaxation processes, structural heterogeneity and morphology of multi-phase systems such as crystalline polymers, polyblends and composites. DMA can also pinpoint thermal transitions for example, typical output of tan 8 versus temperature will display a peak at Tg. Above 7, peaks correspond to the crystalline regions and eventually Tm. As a technique, DMA is also sensitive for the characterisation of polymers of similar chemical compositions, as well as detecting the presence of moderate quantities of additives such as plasticisers or leachable materials. For example, PVC is very stiff, however, with the addition of plasticisers it can be made more flexible. 

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