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Measuring the expansion rate of the universe - Hubble constant tension explained

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...
IEEE

A Novel Describing Function Small-Signal Modeling Approach for Passive Ripple Constant On-Time Controlled Converter With Exponentially Varying Slope

Abstract: Passive ripple constant on-time (PRCOT) controlled converters have been widely used for mobile applications to improve light-load efficiency and transient response. An accurate small-signal ...
Polygon

Watch Lost’s unforgettable Christmas episode before the show leaves Netflix

Every Christmas Day, after the kids are tucked into bed and my wife has drifted off on the couch, I turn off whatever holiday movie we’ve settled on and fire up Netflix to watch “The Constant.” The ...
BBC

Module 6 (M6) – Algebra - Graphs of quadratic functions

An equation of the form \(y = mx + c\) where \(m\) and \(c\) are numbers, gives a straight line when values of \(x\) and corresponding values of \(y\) are plotted on a grid. A straight line is a ...
IEEE

What energy functions can be minimized via graph cuts?

Abstract: In the last few years, several new algorithms based on graph cuts have been developed to solve energy minimization problems in computer vision. Each of these techniques constructs a graph ...