"an additional experiment" is correct and can be used in written English.
For example, "We decided to conduct an additional experiment to confirm the results."
This is strongly supported by an additional experiment using a sapphire single-crystal substrate.
In order to evaluate the proposed model, we conducted an additional experiment.
In an additional experiment, we measured the dynamic contact angle of this sample.
Finally, we perform an additional experiment to explore the contribution of different acoustic features.
Notably, an additional experiment replicated infants' preference for consistently prosocial over consistently antisocial others.
These results were supported by an additional experiment that used a balanced chunk strength design.
Besides, an additional experiment in the laboratory verifies the accuracy of the presented method.
To validate that the implementation of our proposed solution supports all required forms of communication, an additional experiment was performed.
At the end, sixth subsection includes an additional experiment on another HAR dataset OPPORTUNITY dataset, using the same system.
We conducted, along the day, an additional experiment to collect data transfer time between portal and grid nodes.
In an additional experiment, Cpcul1-siRNA was found to induce similar stunting effect as that induced by Cpcul1-dsRNA.
