The phrase "a close interaction" is correct and usable in written English.
It can be used to describe a situation where two or more entities engage with each other in a significant or intimate manner.
Example: "The study focused on a close interaction between the researchers and the participants to gather in-depth insights."
Alternatives: "a strong engagement" or "an intimate connection."
Snowden said the sale would allow SSTL to "realise its full potential as a rapidly growing and leading supplier of small and micro-satellites, while the university retains the benefit of a close interaction with SSTL and its new partner, EADS Astrium".
A close interaction of modelling and experiment is vital.
In amphibians, there is a close interaction between the interrenal and the thyroidal axes.
Dimethylsulfate footprint assays reveal a close interaction between TtgR and the central region of this operator.
The optimization procedure shows a close interaction between the experimental and simulated values for dye extraction.
When the value of (E(O_i)) approaches 1, the system interprets it as the presence of a close interaction with the neighboring object.
A close interaction was demonstrated between integrase activity and in vivo/in vitro recombination process, suggesting that retroviral integration and recombination mechanism are linked in the infected cell.
Such a structuring both necessitates and benefits greatly from a close interaction with existing regional structures and bodies, including the GOOS Regional Alliances and in particular, EuroGOOS.
The substrate is then thought to dock into the cleft formed between helices II and VI, where it makes a close interaction with the loop containing A730.
Since Co acts as a promotor, a close interaction between Co and Mo in the final catalyst is of major importance for the catalytic activity.
This paper explores the area in-between, looking at robot fostering, referring to techniques by which skills can be transferred to robots through a close interaction with humans.
