"operation hours" is correct and usable in written English.
You can use it when referring to the times when a physical or virtual facility is in service. For example, "The library will be open for operation hours from 9am-6pm this week."
Operation hours are Monday- Friday 7 30 am – 7 pm and Saturday 8am-2pm.
The simulation results show that the increase of continuous reactor operation time varies between 1 and 8 additional operation hours.
It has been shown that its remarkable effect starts after the first 3 operation hours and increases continuously after that.
But TES also provides more versatility to the plant and makes its reliance during operation hours more dependable.
Partial load model of an organic Rankine plant has also been obtained to increase the operation hours.
The European DISS project has proven the feasibility of the direct steam generation under real solar conditions in more than 4000 operation hours.
In addition, other key indicators of the RCAES system, e.g. maximum electric power, operation hour, maximum capacity should also be considered in practical engineering applications.
Turkey announced the expulsion of the Israeli ambassador and suspension of military co-operation hours before the report was to be published, the most significant downgrading in ties between the two countries since the bloody flotilla attack.
Reasons for not enrolling were refusal (1245; 50%), death before enrollment (21; 8%), visiting during non-operation hours or after completion of enrollment (84; 34%), self-reported to be too ill (14; 6%), and communication problems (4; 2%).
System density can be evaluated in different ways: according to the number of devices in operation, the hours of operation for instances.
All the French airfields were back in operation 48 hours later.
