Containers spheres

Grinding in a stainless steel bottle, containing spheres of stainless steel (the dimensions of a-TiCh after grinding are <2 n). 

When coke-oven or petroleum-tar pitches were heated to an appropriate temperature (about 420°C.) and quenched, the product contained spheres of various sizes mostly in the range 0-10 microns. The spheres were normally, fairly regularly distributed through the pitch matrix, with small and larger spheres intermixed. When the toluene-soluble extract of the pitch was carbonized to the same temperature, fewer spheres were present in the product, but their diameters were considerably greater. Under these conditions many spheres were more than 10 microns across, and some exceeded 50 microns. This result suggested that nucleation occurred less commonly or less easily in the toluene-soluble pitch fraction and was associated with the presence of C1 -insoluble material. 

Container Sphere, Ellipsoid, Frustum, Cylinder, Cube,... 

The space probe is shaped like a huge sphere. Inside the sphere are a number of smaller, self-contained spheres, each of which holds machinery for specialized tasks. In the biggest of the interior spheres—let s call it the library —are the blueprints for making all the machines in the space probe. These are not ordinary blueprints, however. They can be thought of as blueprints in braille—or perhaps as sheet music for a player piano— where physical indentations in the blueprint cause a master machine to make the machine for which the blueprint codes. 

Figure 37. Cross Section of Packings Containing Spheres and Irregular Materials. (A) Iron Ore, 6/8-mesh (B) Iron Ore, 3/4-mesh (C) 3-0 Shot ...

DeLaRue47 follow the same line at low void fractions but, beginning between void fractions of 0.1 and 0.2, DeLaRue s conductivities of dispersions containing spheres of various sizes are consistently lower than both Meredith s conductivities and DeLaRue s own conductivities of dispersions of monosized spheres. For example, note the difference at a void fraction of 0.4 where the conductivities of DeLaRue s dispersion of spheres of various sizes are lower than the conductivities of dispersions of monosize spheres. 

Many theories have been advanced for predicting the modulus of filled composites. The Kemer theory is often used for the G modulus in the case of filled systems containing spheres Halpin--Tsai modified the Kemer equation in a more general form Lewis and Nielsen suggested a further modification by taking into consideration the packing factor and obtained, in the case of E modulus, the following equation ... 

Traffic signs and road marking tape contain spheres that are -200 pm in diameter and act as microlenses. 

The confinement system provides for confining the fission products that might be released from a reactor during a nuclear incident. It is important to note that this is a confinement rather than containment system. The familiar total containment sphere is not utilized. The confinement approach is necessary because of the massiveness of the Hanford Production Reactors and the fact that containment vessels must be built before or with the reactor. 

A common problem in microscopy is that three-dimensional information on microstructure is required, but the objects (sections or surfaces) and their images are two-dimensional. Stereology is the field that provides the mathematical methods that allow one to go from two to three dimensions [124, 125]. The mathematical methods are quite complex. A simple example of the problem is a material containing spheres dispersed in a matrix. If the spheres are of uniform diameter, an image of a thin section will contain circular structures of varying diameter. If the spheres are of a range of sizes, a thin section will appear much the same. Analysis of the size distribution of the circles is needed to distinguish the two cases. 

The Authors state that a 49 m diameter steel containment sphere surrounds the Atucha plant, and that this sphere has been designed to withstand the full pressure. ... 

Figure 30.10, also adapted from Ref. [62], shows the Eu -containing spheres after heat treatment at 1000 °C. Eu -rich regions appear as black spots on the particles surface. Photoluminescence spectra suggest Eu ions occupying amorphous structures similar to the ones observed in silica glasses. 

Figure 30.10 SEM images. Silica spheres obtained from Eu " -containing spheres and treated at 1000°C. Black spots covering silica spheres are Eu -rich regions. (Adapted with permission from Ref. [62]).)...

For a bed containing spheres of different sizes, the definition for Dg, eqn (3.6), leads to the same form as the monosize sphere expression, eqn (3.7), if the surface volume average diameter dp is used in place of dp. 

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