Getting your first telescope should feel exciting, not frustrating. If I avoid a few common beginner mistakes, I can turn ...

Abstract: Collimation and focusing are generally more common in optics field. We demonstrate hyperbolic metamaterials (HMMs) with very flat isofrequency surfaces in wavevector space for tunneling of ...

This package is ESM only and requires React 18 or higher. You'll need to register the languages you want to use - I've intentionally left all languages out of the default bundle in order to reduce the ...

All of these titles (with the exception of the last 2) are now over 10 years old and considered abandonware since DICE/EA have shut down all original GameSpy powered online servers and ceased use of ...

Abstract: The relative resolution and sensitivity advantages of pinhole and parallel hole collimators for planar scintimammography with compact, pixellated gamma detectors were investigated using ...

The objective of this study, which is related to human brain SPECT, was to increase the sensitivity of a triple-camera SPECT system and reduce statistical noise in reconstructed images using a ...

Before CT came into use, planar radiography and fluoroscopy comprised all non–nuclear medicine uses of ionizing radiation in imaging. In those types of examinations, the radiation dose to the patient ...