Abstract: The overall performance improvement of model-based controller depends on the accurate plant model. However, many complicated plants exist unmodeled uncertainties caused by irregular ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

Abbott issued a medical device correction for some of its glucose sensors after internal testing found that some sensors may provide false low glucose readings. Hundreds of adverse events and seven ...

How often you change the spark plugs in your car depends on the recommendations of its manufacturer. Typically, it'll be somewhere around the 100,000-mile mark for new vehicles, but it could be much ...

Buried miles below the Pacific, ancient rocks generate oxygen and power without sunlight. The CIA knew—and kept it quiet. What happens if we destroy them? Rescue helicopter returns to Oregon town ...

Clare Fieseler's and Jason Jaacks' reporting was supported by a grant from the Pulitzer Center and co-published with the Post and Courier. Rachel Feltman: For Scientific American’s Science Quickly, ...

With the release of watchOS 11.6.1 and companion iOS 18.6.1, Apple managed to restore blood oxygen readings for U.S. owners of Apple Watch Series 9, Series 10, and Ultra 2. The method is slightly less ...

Apple released a small build update to iOS 26 developer beta 6, which does not re-enable the blood oxygen sensor on Apple Watch in spite of the earlier iOS 18.6.1 update that did. The new iOS 26 ...

Early last year, Apple made the bold, court-mandated decision to remove the blood-oxygen feature from the Apple Watch Series 9 and Ultra 2 in the U.S. over a patent dispute with medical technology ...