Abstract: Traditional PET detectors utilize a full-ring structure, which can provide clearer and more effective imaging of the human body. However, this full-ring structure is costly and inflexible, ...

Abstract: Deep dielectric charging and discharging effects significantly contribute to the failure or abnormal operation of geosynchronous orbit (GEO) satellites. In this article, aiming at the deep ...

There’s no set rule on how much you should spend on an engagement ring, but it’s important to understand the factors that go into costs—like diamond GIA gradings, carat weight, and settings—to ...

The simulation hypothesis—the idea that our universe might be an artificial construct running on some advanced alien computer—has long captured the public imagination. Yet most arguments about it rest ...