The sentence "An example of this activity" is grammatically correct and can be used in written English.
For example, "Reading is an example of this activity."
Figure 2 shows an example of the activity matrices estimated from the word ikioi ('vigor' in English).
To give you an example of these activities, I'm going to tell you about our latest French-Hungarian project.
A simple example of this activity is to have children compare and contrast an apple and an orange.
Quantitative easing is an example of economic activity that fails to generate such additional wealth.
Figure 3 shows an example of student activity in the 9th cycle.
See "Brief Examples of Integration Activities Using the K-4 Biological Evolution Content Standards" section for an example of trilobite activity and Fig. 2 for some introductory information on trilobites.
He said the attack was an example of "destructive activity with malicious intent that was initiated by a sophisticated actor".
No activity was observed in repeated assays and using several batches of independently purified recombinant protein (an example of activity assay data is shown in Figure 8B).
An example of unusual activity might be an intruder on a motorway.
An example of the "activity diagram" is given.
