The paper describes the comparison of torque characteristics of ferromagnetic rotor double stator brushless DC permanent magnet motor (BLDC). Normally, most of researcher used non-ferromagnetic rotor ...

With the increasing importance of space-borne antennas in very low-frequency (VLF: 3–30 kHz) transmitting system, it is essential to study radiation characteristics of a radiator in ionosphere. In ...

Deep in Chile’s Atacama Desert, scientists studied a green crystal called atacamite—and discovered it can cool itself ...