The phrase "asserted that using" is correct and usable in written English.
It can be used when you want to indicate that someone has stated or claimed something about the act of using a particular method, tool, or approach.
Example: "The researcher asserted that using renewable energy sources could significantly reduce carbon emissions."
Alternatives: "claimed that employing" or "stated that utilizing".
Although some surgeons may assert that using the PS component with the gap technique is useful for creating proper gaps during extension and flexion, there are simple limitations.
Further, some Democrats assert that using borrowed money to pay for salaries and other recurring expenses runs afoul of a debt reform law that Mr. Pataki, a Republican, championed and pushed through the Legislature in 2000.
The commission accused the marketers of falsely asserting that using the device for three minutes was the equivalent of doing 100 situps and that users would lose 10 pounds in two weeks.
Nazi comparisons are almost automatically far-fetched, and while it's a stretch for anyone to assert that using Fraktur and the sounds of jackboots cheapen the memory of people killed by the Nazis, it's hardly more unbelievable than comparing the mayor to Hitler, which passes for political insight in certain art circles these days.
Anani and Gordani (2014), also, assert that using fillers can give learners abundant time in order to think about the next action they would like to do.
In his B– review, Kaiser asserted that "Lisa Goes Gaga" used a straightforward interpretation of the singer, and felt that Lady Gaga's appearance was superior to previous guest appearances.
To avoid a terminological quagmire, let us merely assert that analytics uses statistical and other methods of processing to tease out business insights and decision cues from masses of data.
In the same vein, Oxford (1990) asserts that appropriate use of strategies "enable students to take responsibility for their own learning by enhancing learner autonomy, independence, and self-direction" (p.10).
As it stands, Vestager asserted that consumers using Google search for shopping comparison are always being pushed towards Google's own comparison service, regardless of whether it is the best or more relevant result for their query.
