The phrase "without great effort" is grammatically correct and can be used in written English.
You can use it in situations where you want to describe something that can be done without putting in a lot of effort or without much difficulty. Example: "He was able to finish the project without great effort, thanks to his efficient time management skills."
However, none of these tools are designed to enable the HPC expert to be able to propose new techniques and solutions without great effort.
It is important to underscore that donor pretreatment will have great advantages for the recipient because an improved long-term graft survival could thus be achieved cost-efficiently and without great effort or side effects.
One-third of the states have already imposed their own rules on such toxics, and several forward-looking utilities have installed pollution controls that can be upgraded without great effort or expense to meet the new federal standards.
The Chinese thus faced the keenest competition in the examinations, and those who passed tended to be brilliant intellects, whereas the Manchus could be assured of success without great effort.
And only by hand, as the Chippewa have always done, using wooden flails gently (the grains should fall from the stalk without great effort) from canoes propelled by paddles or push poles.
Mr. Clinton's arrangement with Mr. Burkle is an unusual one for a former president, giving him the potential to make tens of millions of dollars without great effort and at virtually no risk, according to Mr. Burkle and advisers to Mr. Clinton.
As the act of driving is to an experienced driver, the skilled reader is able to quickly decode a series of letters and extract the representation of its meaning without great efforts.
Last week, the UN's children's agency, Unicef, said that despite the significant progress made in cutting child deaths since 1990, the MDG to reduce child mortality by two-thirds by 2015 would not be achieved until 2028 without greater effort.
The contagion cannot be contained without greater effort at sanitation, isolation of sick people, and proper handling and burial of the deceased.
Without greater efforts by the international community, their grandchildren will face life as refugees.
Without greater efforts to expand access to drugs in those countries, too many poor people will be left behind.
