Manufacturer of high performance reed relays Pickering Electronics has released the latest in its series of ...

Abstract: THE impedance of a network is defined as the complex ratio of the alternating potential difference maintained across its terminals by an external source of electromotive force, to the ...

Elevated sodium levels in tumors boost T-cell metabolic fitness and cytotoxicity, revealing potential avenues for improving ...

Electric vehicles are obviously different from gas-powered cars, but do they have engines? We explore how EV motors and ...

A sample from the latest run of Broadway Limited HO scale EMD GP35 diesel locomotives paid a visit to our Winston-Salem ...

By Kim Brawn, Thompson Free Library Library vibes can change faster than Maine’s weather. One minute a frenzied gaggle of ...

Second, an extended back electromotive force (back EMF) observer with equivalent proportional integral control law is designed to suppress chattering without a low-pass filter based on the fast TSM ...

A brushless motor is the driving force behind the efficiency and quiet operation of AC/DC ceiling fans. Unlike traditional ...

Commonly known as the “Santa Fe” type, it served on the Ji Tong Railway in China for twenty years until retirement and was ...

以今天的物理观念来看，历史上“力”的一般用法可能具体指的是力、能量、功率甚至作用量等不同意思。举例来说，electromotive force，英文字面上的意思是电推力，而它实际上指的是电动势，单位为伏特。而汉语的马力，英文为horse power，它的物理意义却是功率 ...