Subject three-dimensional

Hashish AH, Fleming JS, Conway J, Halson P, Moore E, Williams TJ, Bailey AG, Nassim MN, Holgate ST. Lung deposition of particles by airway generation in healthy subjects three-dimensional radionuclide imaging and numerical model prediction. J Aerosol Sci 1998 29 205-215. 

Many coating flows are subject to instabilities that lead to unacceptable coating defects. Three-dimensional flow instabilities lead to such problems as ribbing. Air entrainment is another common defect. 

We showed the possible existence of various forms of helically coiled and toroidal structures based on energetic and thermodynamic stability considerations. Though the formation process of these structures is not the subject of this work, the variety of patterns in the outer and inner surface of the structures indicates that there exist many different forms of stable cage carbon structures[10-19]. The molecules in a onedimensional chain, or a two-dimensional plane, or a three-dimensional supermolecule are possible extended structures of tori with rich applications. 

A three-dimensional analog of a Conway object is then defined to be an expansion sucli that, when subjected to the appropriate three-dimensional Life-rule, yields after each and every generation a projection that is identical to the original Conway object for the same iteration step under Conway s original two-dimensional... 

The chemical properties of atoms are determined by the behavior of their electrons. Because atomic electrons are described by orbitals, the Interactions of electrons can be described in terms of orbital interactions. The two characteristics of orbitals that determine how electrons interact are their shapes and their energies. Orbital shapes, the subject of this section, describe the distribution of electrons in three-dimensional space. Orbital energies, which we describe in Chapter 8, determine how easily electrons can be moved. 

The polysilanes are compounds containing chains, rings, or three-dimensional structures of silicon atoms joined by covalent bonds. Recently, polysilane high polymers have become the subject of intense research in numerous laboratories. These polymers show many unusual properties, reflecting the easy delocalization of sigma electrons in the silicon-silicon bonds. In fact, the polysilanes exhibit behavior unlike that for any other known class of materials. 

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