Maths questions often start with the command words 'calculate' or 'determine'. They will then have a blank space for you to show your working. It is important that you show your working, don't just ...

Abstract: This paper presents an improved reference signal-based pulse width modulation (PWM) scheme for a 5-level cascaded H-bridge multi-level inverter (CHB-MLI) driven induction motor (IM) drive, ...

Abstract: The main objective of this article is to evaluate the performance of neural hysteresis for five-level DTC control of induction motor based on PI-fuzzy speed controller associated with the ...

J. William Carpenter is an economist who writes financial topics. He is an author of published works for higher education and business clients. Katie Miller is a consumer financial services expert.

Choosing your GCSE options is a great opportunity to think about what you'd like to do in the future. Watch the video below for five things you need to know when you choose your options in England.