Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Ebony Howard is a certified public accountant and a QuickBooks ProAdvisor tax ...

Electron microscopy uses a beam of electrons to illuminate a sample and achieve much higher spatial resolution than light microscopy. Transmission electron microscopy generates an image of the ...

Confocal microscopy is an optical imaging technique that scans a focused point of light around a sample to reconstruct an image in a point-by-point manner. A pinhole is used in the detection path to ...

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Khadija ...

Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...