Matrix-based storage

If the molecular orbitals are organized such that all orbitals of a given irrep are grouped together, the matrix-based storage scheme described above takes on a particularly convenient form. " Using the C2 point group as an example, the T2 matrix of Eq. [238] may be schematically written as... 

Theoretically, the hydrogen storage capacity prospects for new materials seem rather optimistic. When one hydrogen atom is joined to each carbon atom (what is quite probable), there appears a possibility for producing a sorbing matrix based on these materials. It allows storage of up to 7.7 wt.% H2. 

Films were also made from MFCs and neat matrix polymer that had been subjected to different quantities of drawing during the manufacturing process. The results (Figure 17.4) were compared to a commercially available polyolefin-based storage bag. 

During the course of the last century, it was realized that many properties of solids are controlled not so much by the chemical composition or the chemical bonds linking the constituent atoms in the crystal but by faults or defects in the structure. Over the course of time the subject has, if anything, increased in importance. Indeed, there is no aspect of the physics and chemistry of solids that is not decisively influenced by the defects that occur in the material under consideration. The whole of the modem silicon-based computer industry is founded upon the introduction of precise amounts of specific impurities into extremely pure crystals. Solid-state lasers function because of the activity of impurity atoms. Battery science, solid oxide fuel cells, hydrogen storage, displays, all rest upon an understanding of defects in the solid matrix. 

Many LCDs are based on active-matrix addressing, in which an active device circuit containing one or more TFTs is connected to each pixel. The TFT circuit at each pixel effectively acts as an individual electrical switch that provides the means to store display information on a storage capacitor for the entire frame time, such that the pixel can remain emitting during this entire time rather than for a small fraction of time, as is the case in passive addressing. 

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