Physical property inflation

Suppose there could be prosthetic C-fibers, perhaps made of silicon, and that the stimulation of these can realize pain in essentially the same way, whatever that is, that the stimulation of C-fibers can. Stimulation of these would not activate an accurate natural C-fiber-stimulation detector, though it would activate some other sort of device. We can suppose that in a case where pain is realized in natural C-fiber stimulation and in a case where pain is realized in prosthetic C-fiber stimulation, the cores of the pain instance realizers are states of affairs of the same sort. The properties involved in these states of affairs are functional ones shared by natural C fibers and prosthetic ones. This is not, of course, to say that the cores of all pain instance realizers are states of affairs of the same sort. If, as David Lewis imagined, Martian pain is realized in the inflation of tiny cavities in the feet, the cores of Martian pain instance realizers will be very different from the cores of human pain instance realizers. But it is compatible with this that in any particular case of pain instantiation, the instance of pain has a realizer whose core is different from, though part of, the core of the realizer of the instance of the physical property that is the property realizer of the pain. In our case, the core of the realizer of the pain instance is different from, though part of, the core of the realizer of the C-fiber-stimulation instance. 

Instead of total disc replacement, another approach is the replacement or reinforcement of the nucleus pulposus (NP) at the center of the disc with a material that can re-inflate the disc to restore disc height and function. Materials tested include stainless steel ball bearings, polymethylmethacrylate, and silicon, all without much success. More recently, NP implants have been made from cycle-6 cryogels fabricated from a mixture of PVA and polyvinyl pyrrolidone (PVP) with a ratio varying from 1 to 5 % by weight. The implants have been tested and found to better match the physical properties of the NP [92]. 

Orientation is a continuous operation and occurs in the direction of the film motion or the machine direction (MD). Usually, a cast sheet is transported on heated rollers (Fig. 9) to permit the sheet to reach a uniform temperature at which the polymer molecules are sufficiently mobile. Having reached this temperature, the sheet is abruptly accelerated between two rollers of different speeds. This point is defined as the draw point. In some instances, additional heat may be required to boost the temperature, or nip rolls are needed to regulate tension and to prevent film slippage (Fig. 9). Uniaxial film can be obtained by orienting perpendicular (transverse) to the MD using tenter frames or melt inflation, where the melt removal rate is equal to the melt velocity at the die. However, these two methods are seldom employed. The properties required by the user determine the orientation required to develop the desired physical properties. 

Table 2.1(C) shows the physical properties of HP-LCP inflation film and sLCP solvent casting film. In this case, the thickness of HP-LCP film and sLCP film were both 25 pm. In particular, an unique property of the HP-LCP film is its excellent gas barrier. Permeability tests were performed imder hydrogen gas, oxygen gas and water vapor with the following conditirais 23 °C, 50 %RH and 0.1 MPa (1 bar), 23 C, 60 % RH and 0.1 MPa (1 bar) and 40 °C, 90 % RH and 0.1 MPa (1 bar), respectively. All gas permeabilities measured were extremely low and belonged to the lowest values known for thermoplastic films. The reason for this effect should be the hindered motion of the naphthalene moiety in HP-LCP that restricts penetration mobility of gas molecules. The combination of the excellent gas barrier properties and the low water absorption rate are key properties and great advantages of HP-LCP film.

The properties of gases that are most easily observed are the relationships among pressure, volume, temperature, and mass. If you have ever inflated a balloon, baked a cake, or slept on an air mattress, you have observed how these properties are related. Because the laws of gases were developed from the study of their properties and behavior, it is now possible to predict the physical behavior of gases by the application of these laws. 

While the tensile properties and hydrophobicity of polyester make it a superior fibre for seat belts, the greater flexibility and recovery of nylons suggest that these are preferable physical features. However, as Table 11.7 shows, the real advantages of nylons and particularly nylon 6.6 arises from their greater specific heat capacity and latent heats of fusion which enable them to absorb over 30% more thermal energy than polyester before they start to lose their tensile properties as a consequence of heat generated during bag inflation. 

The SMP polymer materials which have been considered or used by researchers for rigidised inflatables have not been completely defined in the literature, and the suitability of their physical and mechanical properties for space applications at GEO have not been discussed in detail, to this author s knowledge some trade names of the polymers used for rigidised inflatables are ... 

In the present work physical and mechanical properties of inflated with organic and inorganic fillers aciyhc polymers in wide range of ratio of components in inert (air) and aggressive (water) mediums ate discussed. Electronic micrscopy and infra red spectroscopy was used for explanatiou of the received data. 

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