In both cases, the gel forms a solid, yet porous matrix.

This means that their isomerization in a solid matrix can take place much more quickly than with most other photochromic molecules.

Figure 1 shows the typical line shape for electronic transitions of individual chromophores in a solid matrix.

There's a flaw in the command module, and that's a solid matrix.

These materials are composed of a solid matrix and pore structure, which contain fluids such as gas and oil.

Extraction is usually from a solid matrix, but can also be from liquids.

In the gelling, other molecules can be enclosed in the solid matrix.

When trapped in a solid matrix at about 90 K, the six hydrogen atoms of the molecule are undistinguishable by spectroscopy.

Volatile substances in liquid or solid matrices can be made available by the purge and trap technique.

The term refers to methane adsorbed into the solid matrix of the coal.