On the question of food, Aomori is usually renowned for its Fuji apples. In the depths of winter, though, it’s hard not to ...

A symmetrical Doherty power amplifier (PA) with an extended efficiency range is proposed. This paper proves the existence of a class of symmetrical Doherty PAs having efficiency peaks for back-off ...

The paper deals with the issue of symmetrical components in transformers, considering various winding connections in the occurrence of different types of faults. The transformer is a determining ...

The behind-the-scenes story of how the celebrated Chicago landmark came to be. Charles Beersman was thirty-one when he began designing the Wrigley Building, young even in those days for such a major ...