Sentence examples for a substantial amount of unknown from inspiring English sources

Crude oil is a complex mixture of a range of different components like aliphatic and aromatic hydrocarbons (PAHs), phenols, and a substantial amount of unknown compounds [ 1].

However, there was only a short period of demolition data and a substantial amount of properties with unknown ages.

Regression analyses were not performed on the Wang dataset due to the substantial amount of unknown data, or for the ER-negative JBI cohort due to the low number of patients in this group.

His journal, later published, contained a substantial amount of information on the then-unknown terrain and inhabitants of the central Sudan.

So in November 2004, when the Huygens probe is detached from Cassini for a two-and-a-half-hour plunge through Titan's nitrogen-rich atmosphere, a substantial amount of what it learns about this largely unknown environment could be beyond the hearing of Cassini's receiver.

Finally, the potential for residual confounding by factors unknown exists; a substantial amount of data on the women's smoking status was missing and other potentially important confounding factors (for example, body mass index) were not measured.

These events supply in many dryland ecosystems a substantial amount of water, but their role for northern humid ecosystems is largely unknown.

The quality of the optimum estimate is somewhat hard to assess objectively because the true location of the optimum is unknown and the measurements are subject to a substantial amount of noise.

Gilder has done a substantial amount of both.

I have spent a substantial amount of money in development.

The foundation lost a substantial amount of money.