The phrase "a decade of studying" is correct and usable in written English.
It can be used to refer to a period of ten years spent engaged in the act of studying, often in an academic or research context.
Example: "After a decade of studying, she finally completed her PhD in neuroscience."
Alternatives: "ten years of study" or "a ten-year study period".
After nearly a decade of studying Steiner's system, Harry and Li returned to Chengdu, to start China's first Waldorf school.
But overwhelmingly, I've concluded in a decade of studying America's elderly, it is fee-for-service doctors and Big Pharma who stand to gain the most, and adult children, with too much emotion and too little information, driving those decisions.
Mills's mind-games magic – from cracking the codes of jewellery shop safes to predicting the sex of babies at antenatal yoga classes – come from more than a decade of studying the "predictable" patterns of human behaviour.
After a decade of studying restaurant reviews in New York City — a notoriously tough market — Greenberg concluded that Yelp's expansion into the market didn't increase sales inequalities among restaurants — a relief for places that don't have a celebrity name or thousands of reviews behind them.
Where I landed after a decade of studying policing is that certainly bad leadership and training are a factor, but the larger problem is that the police are expected to maintain and enforce existing economic, social, and racial power imbalances and biases.
After more than a decade of studying snowshoe hares in the Rocky Mountains, L. Scott Mills, a wildlife biologist at the University of Montana, Missoula, noticed that the animals were beginning to stick out more than usual.
The paper, Schaffer said, is the culmination of approximately a decade of study, data gathering and analysis.
After a decade of study, nostalgia isn't what it used to be — it's looking a lot better.
A review of almost a decade of studies found that exposure to violent video games was a "risk factor" for increased aggression.
Results from more than a decade of studies suggest that the Bt crops themselves have at most a minor effect on nontargets.
Despite almost a decade of study, several questions persist about the prediction of these responses to inlet perturbations in industrial reactors.
