Generate irregular

In many cases the octahedron based structures appear with a truncation R = 75%. In that case they can be described as platelets. On the other hand the fact that the growth rate of the various crystal faces might be different generates irregular shaped platelets. A particulary common shape are the triangular plates (shown in Fig. 8). These are the result of truncating a single tetrahedron with ill faces. 

In addition to protection against corrosion, the microparticles can also be highly catalytic for the oxidation of organics. The reaction time needed for complete oxidation can be reduced several fold. The significant catalytic activity is due to the newly generated irregular surface on the sodium carbonate microparticles. The organic molecules attach to the surface and become more susceptible to oxidation. 

C. Stansberg, Extreme waves in laboratory generated irregular wave trains, in Water Wave Kinematics, eds. A. Tprum and O. Gudmestad (Kluwer Academic Pub., 1990), pp. 573-590. 

Crevice corrosion on titanium typically generates irregularly shaped pits. Microstructural examination of hand-polished and etched sections of crevices often reveals a surrounding layer of predpi-tated titanium hydride in a alloys. These are a by-product of hydrogen reduction at cathodic sites surrotmding the crevice. 

In general, polymers obtained by step-growth polymerizations exhibit perfect regularity due either to the symmetry of the monomers used or to the fact that the condensation reaction considered cannot generate irregularity. 

The solution process generates irregular amorphous particles having a broad range of particle size (average particle size is often about 200 p,m). Particle size distribution can be controlled by precipitation conditions, which also affect bulk density and porosity. Typical porosity is in the range of 0.25 g/cm, and bulk density about 0.4g/cm. These parameters facilitate solution applications. 

Fig. 8.2 Simple Monte Carlo integration, (a) The shaded area under the irregular curve equals the ratio of the number of random points under the curve to the total number of points, multiplied by the area of the bounding area, (b) An estimate of tt can be obtained by generating random numbers within the square, v then equals the number of points within the circle divided by the total number of points within the square, multiplied by 4.

Particle shape is also important. Disk-shaped as well as cylindrical-shaped conductors have a high response because large induced current loops are formed. Small randomly shaped conductors, such as those present in cmshed slag, also respond favorably. Sphere-shaped particles generate small-current loops, however, and do not have a high response. Multiple-current loops occur in conductors that have irregular bends, producing counteractive forces that tend to nullify each other. 

Eor irregular or spherical bodies, a cylindrical container is loaded with a 100 gram or larger sample and a pistonlike cover is placed on top of the sample. The container is placed in a hydraulic press and a predeterrnined amount of force is appHed to the cover at a controUed rate. The sample is removed from the container and screened to remove cmshed particles (fines). The bulk cmsh strength is reported in terms of percent fines generated by a specified force. 

In Table 16.9 emissions are classified as persistent or irregular , and as to the level (i.e. the height above ground) at which they are likely to be generated. 

Motion of fluids in which local velocities and pressures fluctuate irregularly, in a random manner. Predictive maintenance technique that uses principles similar to those of vibration analysis to monitor the noise generated by plant machinery or systems to determine their actual operating condition. Ultrasonics is used to monitor the higher frequencies (i.e., ultrasound) that range between 20,000 Hertz and 100 kiloHertz. 

This field is the dominant part of the total field, since the irregular part of the masses generates not more than several hundreds of milliGalls, which constitutes less than 0.1% of the resultant field. 

It was learned that pitting-type metal and semiconductor corrosion is attended by the generation of noise seen in the form of dynamic irregularities in the changes of the anodic potential and current density. Thus, electrochemical noise studies were applied to the corrosion and passivation of metals and to their activation by external chemical (activating additives in the electrolyte) or electrochemical (anodic or cathodic polarization) agents. 

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