Sentence examples for composition of chemicals from inspiring English sources

The absence of data could be due to the lack of information on the composition of chemicals released from a specific source, the number and nature of the sources of exposure, or the doses that the receptor receives from a source.

However, differences in engine and emission-cleansing technologies may affect the ratio of these two main particle fractions in diesel exhaust emissions and has also considerable impact on the amount and composition of chemicals adhered to the surface of the emitted DEP [ 74].

Chemistry of industrial polymers, structure and composition of chemical compounds made up of long, chainlike molecules.

Finally, chemical groups are based on the composition of chemical groups that constitute the side chains, see Table 1.

From each entry, several models were built that differed in the number and composition of chemical features, so that distinctive binding modes were reflected by the models.

The smell and chemical composition of these chemicals are distinct from those of the stoat.

First, catalogs of names and compositions of chemical compounds have been traditionally less accessible.

But this is the first known instance of an insect's altering the composition of plant chemicals to enable one insect to find a mate.

An ecosystem is a complex composition of physical, chemical and biological components.

There are two composition features considered, which include amino acid dipeptide composition (dipeptide descriptors) and composition of physico-chemical properties (amino acid index).

Sometimes the compositions of the chemicals change with the orientation of the plant parts.