The phrase "activity in the field of" is correct and usable in written English.
It can be used to refer to specific actions or work being done within a particular area of expertise or industry.
Example: "The research team is engaged in activity in the field of renewable energy technologies."
Alternatives: "work in the area of" or "efforts in the domain of".
Mid-1990s also saw a spurt of research activity in the field of programmable and active networks that promised a spate of service innovations [8].
And with its A-list credentials, "Electric City" may be an indicator of renewed activity in the field of episodic digital content, after previous efforts met with little financial success.
"The quality of French intellectual activity in the field of the human and social sciences is indisputable," said Marin Karmitz, a cinematographer who is the general representative of the Council of Artistic Creation.
"Obstacles to cross-border activity in the field of corporate taxation hamper business development and the growth potential of the single market," said Philippe de Buck, director general of Businesseurope, a lobbying group.
Although the volume of business activity in the field of residential interiors continues to grow, there seems to be less need and less challenge for the professional designer, with the result that more and more of the qualified professionals are involved in nonresidential work.
Count rate according to total activity in the field of view of the scanner.
The highest authority coordinating activities in the field of research and deciding on technical expenditures and on navigational improvements is the Ministry of Environment Protection and Natural Resources.
A far sterner test for Iraq is expected to come after Dec. 8, when Mr. Hussein's government is required by the United Nations Security Council's new weapons-inspection mandate to declare all of its activities in the field of nuclear, biological and chemical weapons development, as well as any banned work on missiles and ordnance.
One memo records: "We have opened a company account for him based in Dubai … The client is currently being very careful because he is under pressure from the Belgian tax authorities who are investigating his activities in the field of diamond tax evasion".
