Electrons play many roles in solid materials. When they are weakly bound and able to travel—i.e., mobile—they can enable ...

The image above, provided by NASA, highlights how all three heat-transfer methods (conduction, convection, and radiation) work in the same environment. What is Conduction?

Imagine standing in a field and witnessing what appears to be a tornado made entirely of fire, spinning violently through the ...

NASA's Science Mission Directorate (SMD) announces the release of its annual omnibus solicitation for basic and applied research, Research Opportunities in ...

This paper presents a novel peak-current-mode based variable off-time control for the boost PFC converter to achieve low input current THD and high power factor across a wide range of loads. The ...

There are fundamentally two ways to generate electricity. The first is based on electromagnetic induction, which remains the ...

A magnet with very high homogeneity for the baby imaging is designed and will be fabricated. The optimal design method of short actively shielded superconducting magnet is presented based on nonlinear ...