Science Daily

Violating Bredt's rule: Chemists just broke a 100-year-old rule and say it's time to rewrite the textbooks

According to Bredt's rule, double bonds cannot exist at certain positions on organic molecules if the molecule's geometry deviates too far from what we learn in textbooks. This rule has constrained ...
Investopedia

Understanding the Prudent Investor Rule and Its Applications

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
Investopedia

Understanding Fourier Analysis: Uncovering Patterns in Time Series Data

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
IEEE

Modeling and ZVS Operation of the Isolated Modular Multilevel DC–DC Converter With a Unified Trapezoidal Wave Modulation

Abstract: This article introduces a unified trapezoidal wave (UTW) modulation scheme for the isolated modular multilevel dc–dc (IM2dc) converter, which consolidates multiple existing modulation ...
IEEE

Speed Control of BLDC Motor Using Trapezoidal Commutation & PWM Technique

Abstract: This paper deals with brush less dc motor which is often taken by the commutated dc motor. The BLDC is a PMSM motor which as numerous advantages compared to other motors like induction ...