Erdheim-Chester disease (ECD) is a rare systemic histiocytic disease. The authors present a case report detailing the presentation and treatment of a 26-year-o
The n-type Nb-doped SrTiO_3 with different doping concentrations were studied by first principles calculations.The effects of Nb concentration on the formation
The insulated gate bipolar transistor(IGBT) has negative Miller capacitance during switching transients.It has conventionally been attributed to the voltage dep