(iv) The useful life limit of 22,000 hours in paragraph (4)(iii) of this definition is effective as a limit to the useful life only when an accurate hours meter is provided by the manufacturer with the engine and only when such hours meter can reasonably be expected to operate properly over the useful life of the engine.
Urinary creatinine excretion was comparable during all treatment periods, indicating accurate 24 hour urine sample collection (table 2).
Although in this study urinary copper excretion before and after D-PCA challenge yielded results diagnostic of WD in 84.2% of patients, it was performed in only 25 patients in this cohort, thus revealing the difficulty in obtaining accurate 24 hour urine collection for performing this test in children and confirming previous reports [ 8].
This variability may have been due to the inherent shortcomings associated with a 12-hour urine collection period versus a more accurate 24-hour urine collection period.
When I started at the Met Office, you were lucky if you got an accurate 36-hour forecast.
They conclude that an accurate 48-hour flow forecast increases the value of the hydroelectric facility by about 2%.
2) Whether the actual or predicted load values are used for the lagged loads, the DRM produces much more accurate one-hour-ahead forecasts than the Vanilla model.
In a U.S. study, (Teisberg et al., [2005]) found that accurate 24-hour temperature forecasts are worth US$166 million per year in optimizing the generation mix.
"We think we would be more accurate with an hour of listening and recording and then repeating the word many times," Pasley said.
We acknowledge that lumbar puncture, which records only a snapshot assessment of intracranial pressure, is not as accurate as 24 hour continuous monitoring, which reflects diurnal fluctuations in intracranial pressure.
And at the end, he offered an accurate assessment: "Two hours of fun and excitement".
